PsychoPy is an open-source package for creating experiments in behavioral science.

PsychoPy

Last update: Dec 31, 2022

Related tags

Science python science experiment neuroscience linguistics psychology psychophysics psycholinguistics experiment-control psychopy experimental-design

Overview

PsychoPy

PsychoPy is an open-source package for creating experiments in behavioral science. It aims to provide a single package that is:

precise enough for psychophysics
easy enough for teaching
flexible enough for everything else
able to run experiments in a local Python script or online in JavaScript

To meet these goals PsychoPy provides a choice of interface - you can use a simple graphical user interface called Builder, or write your experiments in Python code. The entire application and library are written in Python and is platform independent.

There is a range of documentation at:

PsychoPy Homepage
Youtube
The textbook, Building Experiments in PsychoPy
The discourse user forum

Contributions

To contribute, please fork the repository, hack in a feature branch, and send a pull request. For more, see CONTRIBUTING.md and the developers documentation at https://www.psychopy.org/developers/developers.html

More information

Homepage: https://www.psychopy.org
Forum: https://discourse.psychopy.org
Issue tracker: https://github.com/psychopy/psychopy/issues
Changelog: https://www.psychopy.org/changelog.html

Comments

NF: Global Keyboard Events

Having to check manually for keypresses to abort the experiment is cumbersome and error-prone; and I often forget to add this feature for parts of my code and have to resort to the OS task manager to kill the PsychoPy fullscreen window if I need to quit my experiment prematurely.

This PR adds the ability to specify a shutdown key in the preferences, which will then be checked for during all event._onPygletKey() invocations. event._onPygletKey() is the pyglet window's keyboard event handler. These events are dispatched on each flip() and during wait() periods when using wait(X, hogCPUperiod=X). If the shutdown key is pressed, a CRITICAL event will be logged, and core.quit() will be called.

The PR is to be considered a proposal and is up for discussion. Please let me know what you think of the general idea as such, and of the specific implementation.

opened by hoechenberger 103
Convert to Python 3
OK, here we go. I ran 2to3 and added some manual edits so that the following simple example from the documentation already works (on my Mac):

from psychopy import visual, core win = visual.Window() msg = visual.TextStim(win, text=u"\u00A1Hola mundo!") msg.draw() win.flip() core.wait(1) win.close()

Eventually, this will hopefully fix #1061. Right now, we should probably ignore the GUI parts since these will likely require a lot of work.

I hope that this is a first step towards getting PsychoPy to run with Python 3. Note that it will probably be inconvenient to write code that is compatible with both 2 and 3, so I suggest that once everything runs in Python 3, development will switch to that version (and PsychoPy for Python 2 will remain available but not receive any further updates).

Let me know if this approach works for you. Since this is a big one, I hope that others will contribute as well. I guess all devs already have write access to my branch, I hope GitHub makes coordinating this straightforward (I have never done that before).
opened by cbrnr 49
Can't open PsychoPy 3 Mac version 2020.2.2

Hi, I have just downloaded the standalone version for mac. However, whenever i tried to open PsychoPy, it gave me this PsychoPy 3 error and I had to terminate. My mac version is 10.14.5. Is this due to the Mac version is not correct?
📦 packaging

opened by hungshaocheng 34
Installation issue under Windows 7

Hi! I don't know if this is a bug in PsychoPy or just an installation issue. I posted this in the PsychoPy forum a few days ago, but so far nobody has responded, so I thought I'd try here.

I downloaded and installed PsychoPy v3.0 using the standalone version (StandalonePsychoPy3-3.0.2-win32.exe to be exact) under Windows 7 SP 1, but when I try to start it, nothing happens. Literally, nothing happens, no error message, nothing. I thought there might be a conflict with Anaconda, which I already had installed. After a little investigation, I found that my installation of Anaconda is using Python 3.6.7, and PsychoPy is using Python 3.6.5. So I removed all entries for Anaconda from the path (which preceded the path entries for PsychoPy) and tried to start it from the command line (so I could see any error messages), but still nothing happened, not even any error messages.

Here is a link to a screenshot: https://www.dropbox.com/s/yuh8ctz61quy5yi/Screenshot%202019-02-09%2016.06.19.png?dl=0

Maybe my video card isn’t compatible, but shouldn’t I see some sort of error message at least? Any suggestions? Thanks.

opened by dfkettle 33

PsychoPy2_PY3 Error starting ioHub server

Hi,

trying to start the ioHub server, I get the following RuntimeError:

Traceback (most recent call last):
  File "C:\Users\User\GitHub\Experiment\VisualOddball.py", line 49, in <module>
    io = launchHubServer()
  File "C:\Program Files (x86)\PsychoPy2_PY3\lib\site-packages\psychopy\iohub\lazy_import.py", line 278, in __call__
    return obj(*args, **kwargs)
  File "C:\Program Files (x86)\PsychoPy2_PY3\lib\site-packages\psychopy\iohub\client\connect.py", line 301, in launchHubServer
    return ioHubConnection(iohub_config)
  File "C:\Program Files (x86)\PsychoPy2_PY3\lib\site-packages\psychopy\iohub\client\__init__.py", line 290, in __init__
    raise RuntimeError('Error starting ioHub server')
RuntimeError: Error starting ioHub server
ioHub Server Process Completed With Code:  1

This seems to be the same es in #1760. I am using the latest standalone release 1.90.1. @tjwilli58 Do you still have this problem?

📦 packaging

opened by stfnrpplngr 33

Translating new strings

I pulled the latest master branch and found there are several untranslated new strings in menus and dialog boxes. I have some questions on translation.

Should Runner view be untranslated?

We decided that Coder and Builder should be untranslated when internationalization of user interface was started. It looks that new Runner view is comparable UI to the Builder and Coder. If so, I think that Runner should not be translated. What do you think?

How should return strings of psychopy.experiment.exports.NameSpace.isPossibleDerivable() be translated?

When "this" is used as the component name, Builder warns us not to use "this" as the name. This message is not translated.

I searched this string from source codes and found at NameSpace.isPossibleDerivable() in psychopy/experiment/exports.py.

    def isPossiblyDerivable(self, name):
        """catch all possible derived-names, regardless of whether currently
        """
        derivable = (name.startswith('this') or
                     name.startswith('these') or
                     name.startswith('continue') or
                     name.endswith('Clock') or
                     name.lower().find('component') > -1)
        if derivable:
            return (" Avoid `this`, `these`, `continue`, `Clock`,"
                    " or `component` in name")
        return None

This function is called as follows (in psychopy/app/builder/dialogs/__init__.py).

            elif namespace.isPossiblyDerivable(newName):
                msg = namespace.isPossiblyDerivable(newName)
                return namespace._localized[msg], True

namespace._localized is defined as (in psychopy/experiment/exports.py)

        toTranslate = [
            "one of your Components, Routines, or condition parameters",
            " Avoid `this`, `these`, `continue`, `Clock`, or `component` in name",
            "Builder variable",
            "Psychopy module",
            "numpy function",
            "python keyword"
        ]
        self._localized = {None: ''}  # start with this so None=""
        for transStr in toTranslate:
            self._localized[transStr] = _translate(transStr)

Unfortunately, poedit can't recognize that these strings need to be translated. We have to write them without for statement.

            self._localized[transStr] = [
            "one of your Components, Routines, or condition parameters":_translate("one of your Components, Routines, or condition parameters"),
(snip)
            "python keyword":_translate("python keyword")
            ]

On the other hand, we have put pairs of original and translated strings into psychopy/app/builder/localizedStrings.py. Should these strings be moved to localizedStrings.py, too? Or, should they remain as the attribute of NameSpace object ?

opened by hsogo 30

QuestPlus staircase

This was first proposed on isse #1005

I thought it would be a good idea to open an issue so we can add some resources we find online, and to discuss the proposed new class.
🌟 enhancement

opened by janfreyberg 30
NF: Coder UI enhancements
This PR removes the defunct "Source Assistant" and replaces it with a source code tree and file browser.

The source code tree displays classes and definitions within the current document. Giving you an outline of your file which makes navigation much easier. You can click on tree items to expand them and goto their definitions in the file. I decided to go with a quick-and-dirty approach to parsing the file, instead of using the AST. This method is much faster and can do really time parsing on very large files. Right now only function and class definitions show up, in the future variables, imports and attributes will also be displayed.

I also added an integrated file browser panel, it looks and behaves much like the one in R Studio. You can open files by clicking on them, or rename and delete them if you like. I also added a menu option that allows you to change the current working directory of Coder. This allows you to work within a project directory. You can change the CWD to a custom location, to the location of the presently opened file, or the directory being shown in the file pane.

There are also a bunch of misc features and fixes:

I added new fields to the status bar in coder which displays the current line number and column, and file type.

Disabled lexer for non-code text files. No longer is there syntax highlighting when viewing a CSV or text document.

Added Close All and Close others menu items.

Fixed lexers not being set correctly. They all work now and they're ugly.
opened by mdcutone 29

iohub and core clocks out of sync on macOS with Python 3

On macOS 10.14.3, Python 3.7.2, PsychoPy master, I cannot use iohub to measure response times because the iohub and psychopy.core.getTime() time bases seem to be out of sync.

MWE:

from psychopy.iohub import launchHubServer
from psychopy import core


io = launchHubServer()
keyboard = io.devices.keyboard

io.clearEvents('all')
t0 = core.getTime()

while True:
    events = keyboard.getKeys()
    if events:
        t_getTime = core.getTime()
        t_iohub = events[0].time
        break

print(f'core.getTime() timestamp: {t_getTime}')
print(f'iohub timestamp:          {t_iohub}')

Running this code and pressing a key produces output like:

/Users/hoechenberger/miniconda3/envs/psychopy-test/bin/python /Users/hoechenberger/Library/Preferences/PyCharm2018.3/scratches/scratch_19.py
pygame 1.9.4
Hello from the pygame community. https://www.pygame.org/contribute.html
core.getTime() timestamp: 4.988316210000001
iohub timestamp:          3.8018358130000003
ioHub Server Process Completed With Code:  0

Process finished with exit code 0

The iohub timestamp is dragging behind the core.getTime() timestamp, although my understanding is that they should both be ~identical in this example.

Works as expected on a Windows 10 machine with Python 3.6.

🐞 bug

opened by hoechenberger 26

Trial csv not written when 'esc' key pressed

I'm testing an experiment (very simple set up) that, when run in its entirety is perfectly fine. It logs everything, and my output is written as expected. However whenever I interrupt the experiment via the 'esc' key I get this output message:

Exception RuntimeError: RuntimeError('sys.meta_path must be a list of import hooks',) in <bound method ExperimentHandler.__del__ of <psychopy.data.experiment.ExperimentHandler object at 0x112387550>> ignored

Which, to my knowledge, appears as if the ExperimentHandler.del method is being skipped over- resulting in no output .csv

This is on a fresh standalone install of psychopy 1.85.3 on a Mac OS X El Capitan 10.11

Edit: Forgot to mention that this experiment was built completely with the psychopy builder gui- I have not used to coder to create this experiment.
🐞 bug

opened by CRiddler 26
pyWinhook fails to build when installing PsychoPy 3.0.2
When performing developers install for PsychoPy 3.0.2 on Windows 10, the installation fails due to a pyWinhook build failure:

error: command 'swig.exe' failed: No such file or directory
opened by dvbridges 24
RF: Remove audio library from prefs, move to Experiment Settings

Because the setting still exists in the prefs file (it's just marked as "legacy" so not shown in Builder), previous settings will be respected. Basically just means from here on in, users will set their audio library from Experiment Settings rather than Prefs

opened by TEParsons 0
Couldn't measure a consistent frame rate
WARNING Couldn't measure a consistent frame rate! - Is your graphics card set to sync to vertical blank? - Are you running other processes on your computer?

I have this issue with version 2022.2.1 to 2022.2.5. I granted PsychoPy permission to access input monitoring and accessibility. This problem occurs even when a simple task with just a text component is executed. The only method I've discovered to prevent this issue on my Apple M1 computer (Ventura 13.1; Python 3.9.12) is to deactivate vertical sync, which is inconvenient.

Do you have any recommendations concerning potential solutions for this? Thank you!
opened by oliviamborges 0
Add CodeQL workflow
Hi psychopy/psychopy!

This is not an automatic, 🤖-generated PR, as you can check in my GitHub profile, I work for GitHub and I am part of the GitHub Security Lab which is helping out with the migration of LGTM configurations to Code Scanning. You might have heard that we've integrated LGTM's underlying CodeQL analysis engine natively into GitHub. The result is GitHub code scanning!

With LGTM fully integrated into code scanning, we are focused on improving CodeQL within the native GitHub code scanning experience. In order to take advantage of current and future improvements to our analysis capabilities, we suggest you enable code scanning on your repository. Please take a look at our blog post for more information.

This pull request enables code scanning by adding an auto-generated codeql.yml workflow file for GitHub Actions to your repository — take a look! We tested it before opening this pull request, so all should be working :heavy_check_mark:. In fact, you might already have seen some alerts appear on this pull request!

Where needed and if possible, we’ve adjusted the configuration to the needs of your particular repository. But of course, you should feel free to tweak it further! Check this page for detailed documentation.

Questions? Check out the FAQ below!

FAQ

Click here to expand the FAQ section

How often will the code scanning analysis run?

By default, code scanning will trigger a scan with the CodeQL engine on the following events:

On every pull request — to flag up potential security problems for you to investigate before merging a PR.

On every push to your default branch and other protected branches — this keeps the analysis results on your repository’s Security tab up to date.

Once a week at a fixed time — to make sure you benefit from the latest updated security analysis even when no code was committed or PRs were opened.

What will this cost?

Nothing! The CodeQL engine will run inside GitHub Actions, making use of your unlimited free compute minutes for public repositories.

What types of problems does CodeQL find?

The CodeQL engine that powers GitHub code scanning is the exact same engine that powers LGTM.com. The exact set of rules has been tweaked slightly, but you should see almost exactly the same types of alerts as you were used to on LGTM.com: we’ve enabled the security-and-quality query suite for you.

How do I upgrade my CodeQL engine?

No need! New versions of the CodeQL analysis are constantly deployed on GitHub.com; your repository will automatically benefit from the most recently released version.

The analysis doesn’t seem to be working

If you get an error in GitHub Actions that indicates that CodeQL wasn’t able to analyze your code, please follow the instructions here to debug the analysis.

How do I disable LGTM.com?

If you have LGTM’s automatic pull request analysis enabled, then you can follow these steps to disable the LGTM pull request analysis. You don’t actually need to remove your repository from LGTM.com; it will automatically be removed in the next few months as part of the deprecation of LGTM.com (more info here).

Which source code hosting platforms does code scanning support?

GitHub code scanning is deeply integrated within GitHub itself. If you’d like to scan source code that is hosted elsewhere, we suggest that you create a mirror of that code on GitHub.

How do I know this PR is legitimate?

This PR is filed by the official LGTM.com GitHub App, in line with the deprecation timeline that was announced on the official GitHub Blog. The proposed GitHub Action workflow uses the official open source GitHub CodeQL Action. If you have any other questions or concerns, please join the discussion here in the official GitHub community!

I have another question / how do I get in touch?

Please join the discussion here to ask further questions and send us suggestions!
opened by pwntester 0
PR655 failure to detect

Copying from: Cannot connect Photoresearch PR655 to PC using Psychopy, Communication Protocol Problem?

Cannot connect PR655 using PsychoPy3, but works fine with PsychoPy2.

It looks like it looks like this was the commit that removed the special case for the PR655, specifically the removal of this line, as noted here.

If it could be re-added, that would be lovely.
🐞 bug 🔧 hardware/iohub

opened by da5nsy 0

Releases(2022.2.5)

2022.2.5(Dec 23, 2022)
On top of the new features of the 2022.2.x series this release fixes:

Several fixes to syncing of Pavlovia projects (e.g. when project has been deleted/recreated online or when files have been copied over from another machine) #5117 #5221

Shape Component in Builder can now update vertices on each frame/repeat commit:e493ee2ca

Participant name missing from filename if given in URL query #5171

Eyetracker ROI stop code should only be written if a value is given to stop on #5156

Don't crash if Microphone.stop() called repeatedly #5121

TypeError in Window.resetViewport() #5135

PupilLabs lib was not being found due to missing __init__ #5180

QUESTplus had ben removed from list of loop types commit:2da0cfa0a

Sound.pause() was reseting to start of track commit:a161e135a

Source code(tar.gz)
Source code(zip)
StandalonePsychoPy-2022.2.5-macOS.dmg(686.11 MB)
StandalonePsychoPy-2022.2.5-win64.exe(489.43 MB)
2022.2.4(Aug 18, 2022)
On top of the new features of the 2022.2.x series this release fixes:

Python: fix to occasional crashing of new FFPyPlayer moviestim caused by excessive logging in the underlying lib commit:47289f6ca

App: better handling of case where Experiment Settings may have syntax error commit:60cf0cea6

App: rare case where the $ could get ignored during dialog box validation commit:eb1897087

App: better handling of an (apparent) syntax error in user-supplied JS commit:992aaa423

App: transcription setting on Mic Component now False by default (because most people don't have a Google API key set up) commit:2c8a27ed

Source code(tar.gz)
Source code(zip)
PsychoPy-2022.2.4.zip(24.59 MB)
StandalonePsychoPy-2022.2.4-macOS.dmg(686.84 MB)
StandalonePsychoPy-2022.2.4-win64.exe(489.31 MB)
2022.2.3(Aug 18, 2022)
On top of the new features of the 2022.2.x series this release fixes:

App: Dark mode was missing "goto" button

App: Coder save button was not updating correctly after a change #5031

Python: Arabic Harakat diacritics were misaligned in Python TextBox2 #5033

Python: rendering performance improvement when contrast=1 #5027

Source code(tar.gz)
Source code(zip)
PsychoPy-2022.2.3.zip(24.59 MB)
StandalonePsychoPy-2022.2.3-macOS.dmg(687.63 MB)
StandalonePsychoPy-2022.2.3-win64.exe(484.86 MB)
2022.2.2(Jul 14, 2022)
On top of the new features of the 2022.2.x series this release fixes:

an issue with non-slip Routines not being terminated properly by force-end-routine

Source code(tar.gz)
Source code(zip)
StandalonePsychoPy-2022.2.2-macOS.dmg(687.58 MB)
StandalonePsychoPy-2022.2.2-win64.exe(484.85 MB)
2022.2.1(Jun 30, 2022)
On top of the new features of the 2022.2.x series this release fixes:

App: bug loading experiments on MacOS: ‘PosixPath’ object has no attribute ‘is_relative_to’

Py: Keyboard releases were showing up as additional key events when using the ioHub for keyboard

Py: Slider.reset() was not making use of the desired startValue

App: better performance when using large history in the Python Shell

Source code(tar.gz)
Source code(zip)
PsychoPy-2022.2.1.zip(24.95 MB)
StandalonePsychoPy-2022.2.1-macOS.dmg(673.37 MB)
StandalonePsychoPy-2022.2.1-win64.exe(484.87 MB)
2022.2.0(Jun 24, 2022)
Highlights:

BETA: You can now get participant responses using Cameras (webcams), both in web-based and in local experiments. The new Camera Component allows you to

save recordings to disk

show the current input from the webcam (make the Camera the input to a regular ImageStim)

replay a recording later in the experiment (use the Camera as input to a subsequent MovieStim)

all the above features are currently BETA

Python: New movie playing engine for higher performance playback in locally experiments (using FFPyPlayer)

Online: Introducing the "Shelf" for persistent storage on Pavlovia of variables accessible to a range of scopes (only the current participant, only the current project, any project in the lab etc.). This may sound like not a big deal but it opens options for the following:

multi-session studies: retrieve the participant threshold/progress form last session

interactive multi-player studies: store 'messages' for another user to receive

counterbalancing online: by tracking the number of participants that have been in each group

Online: Gratings and Gabors now supported online, straight from your Builder experiments

Online: gamma correction supported in the browser(!!) by setting Window.gamma property (currently requires a code snippet)

Python: Builder now has a Serial Port Component to make it easier to connect to hardware without needing Code Components

Compatibility changes:

Studies with Code Components that access routineTimer will need adapting because the non-slip Builder logic has changed this is now a regular (count-up) Clock instead of a CountdownTimer

Key Fixes:

Online: Button Component is now fully working, so you don't need to create your own text boxes for this

Online: Routines used outside a loop now always advance the next row in the data file so that they can't overwrite each others' data

Python: The .stopped times should now be showing up correctly for all Components in the csv file (they were always correct in the log file)

Python: Better timing in non-slip Routines. Previously the non-slip timer corrected for overshoots but not undershoots. This is now fixed.

Is trials property of loops (to control whether the data file advances) is now supported in online studies

Source code(tar.gz)
Source code(zip)
PsychoPy-2022.2.0.zip(26.02 MB)
StandalonePsychoPy-2022.2.0-win64.exe(486.88 MB)
2022.1.4(May 21, 2022)
In addition to the new features of the 2022.1 release series this release includes the following

Fixes:

experiments using iohub were not running on MacOS standalone due to broken version of the gevent library

fixes to connection from Builder to Pavlovia in certain circumstances (e.g. certain usernames or when project has moved) 22963a9db

fixes searches of Pavlovia for private projects by the logged in user

fix to use of correct answers for Joystick Buttons Component 2e66dc188 f9ef1bea2

Builder crashing when a Routine had been copied over 45928769c

some parameters in Builder dialogs were missing their label names c8cd3802e

ShapeStim was not obeying requests for zero opacity 8030b2ff4

fixed "currentLoop is not defined" error for online studies a261d0446

in certain circumstances, mic recordings were not saving for each trial, only for the last trial, when online 5e23a0a34

Source code(tar.gz)
Source code(zip)
PsychoPy-2022.1.4.zip(24.72 MB)
StandalonePsychoPy-2022.1.4-macOS.dmg(646.83 MB)
StandalonePsychoPy-2022.1.4-win64.exe(432.38 MB)
2022.1.3(Apr 19, 2022)
In addition to the new features of the 2022.1 release series this release includes the following

Fixes:

TextStim (and Button, which is derived from TextStim) was not easily clickable online due to incorrect bounding box psychopy/psychojs#492

Slider styleTweaks were not being applied #4773

Check that file is saved before trying to Run #4759

Mouse coordinate mapping was incorrect for MacOS Retina displays which meant that Slider and Brush wasn't working, for instance #4755

Allow the Sound Component to be used if transcription libs were not available #4747

Form Component excel template was corrupted (by google sheets export) #4742

Copying a Routine from one experiment to another was causing a compile error #4740

Better logging of errors during application load for debugging purposes #4750

Setting the Slider to reset() was looking like a response when it shouldn't #4738

Fixed core.getTime() for M1 native installations (does not affect Standalone or Intel-based installations on M1) b839a32da52b

Allow 3-dimensional arrays for ShapeStim vertices 31ca663bf2

Fix dependency definition for Poetry installations 77cb7c92eac4

Fix use of event module for keyboard as fallback for iohub/ptb 5c3672804f1

If HomeBrew has a broken fonts folder ignore it #4719

If user specifies a line width of "2"make it 2 389bfd4692

Source code(tar.gz)
Source code(zip)
PsychoPy-2022.1.3.zip(24.70 MB)
StandalonePsychoPy-2022.1.3-macOS.dmg(646.67 MB)
StandalonePsychoPy-2022.1.3-win64.exe(432.37 MB)
2022.1.2(Mar 25, 2022)
In addition to the new features of the 2022.1 release series this release includes the following

Fixes:

URL redirection was failing at the end of the study for online experiments where the JS code was generated using 2022.1.0-2022.1.1 due to an erroneous replacement of // with / in https:// e8218b31f71

Hyphens can now be included in Pavlovia project names (the validator in the PsychoPy GUI was being too strict) bbe6bf5ed01

Static Components that are used for fetching online resources (e.g. using a Movie Component that sets its stimulus during a Static) will now freeze and wait until the resource is fully received if it takes longer than the set duration. Using ResourceManager components the experiment will not freeze but status can be checked status==FINISHED when download is complete

Fixed a bug where, after logging out of the Pavlovia Session in the PsychoPy interface, PsychoPy would still provide the option to use the names/groups of that user, but would not then allow access to their contents. bbe6bf5ed01d2657d968f1f429b31bfec064292e

PsychoPy would crash if using the Classic Theme on a mac with a retina display (missing icons) 495fddd814ce1e0b79d4c6483a3d1bdd5ed4b5a5

DotStim in local (Python) experiments was failing to update dots position (at all) #4694

Error raised when creating a new Pavlovia project from the menu item rather than the toolbar button #4683

Crashing on MacOS when running experiment due to Keyboard a) 'iohub' not loading due to gevent incompatibility and b) not then correctly falling back to 'event' backend

Source code(tar.gz)
Source code(zip)
PsychoPy-2022.1.2.zip(24.70 MB)
StandalonePsychoPy-2022.1.2-macOS.dmg(646.63 MB)
StandalonePsychoPy-2022.1.2-win64.exe(432.37 MB)
2022.1.1(Feb 18, 2022)
Highlights of 2022.1.x release series

Improved interface for searching, syncing and viewing Pavlovia projects from within the PsychoPy app

In online experiments you can now dynamically choose the resources your participant needs as the experiment progresses rather than downloading them all in the first dialog box

Can now insert new Routines from pre-packaged templates (such as Fixation, 2-alternative forced choice, feedback, etc)

QUEST handlers now available in PsychoJS including interleaved staircases

Most visual stimuli now have an "anchor" parameter to control how it's laid out relative to its position, and you can now set the alignment of text within a Textbox (with a handy demo to illustrate the difference between anchor and alignment!)

Added support for Pupil Labs eye trackers (thanks to Pupil Labs themselves) directly from the Builder

Compatibility Changes in 2022.1.x release series

Python 2.x is no longer supported

Filename timestamps now have a different default format (based on ISO 8601): 2022-01-14_14h39.36.092 for 2:39pm and 36s, 92ms See :func:psychopy.data.utils.getDateStr for details on the new functionality

Fixes since 2022.1.0:

MacOS app failed to run experiments with dialog boxes (broken dependency being packaged)

the application would hang while trying to push any changes to Pavlovia

added Japanese translations of the new menu items

Source code(tar.gz)
Source code(zip)
PsychoPy-2022.1.1.zip(24.37 MB)
StandalonePsychoPy-2022.1.1-macOS.dmg(646.27 MB)
StandalonePsychoPy-2022.1.1-win64.exe(432.02 MB)
2022.1.0(Feb 9, 2022)
Highlights:

Can now insert new Routines from templates (such as Fixation, 2-alternative forced choice, etc)

Improved interface for searching, syncing and viewing Pavlovia projects from within the PsychoPy app

Dynamic loading of resources in online experiments so that not all resources in a study need downloading in the first dialog box

QUEST handlers now available in PsychoJS including interleaved staircases

Most visual stimuli now have an "anchor" parameter to control how it's laid out relative to its position, and you can now set the alignment of text within a Textbox (with a handy demo to illustrate the difference between anchor and alignment!)

Added support for Pupil labs eye trackers (thanks to Pupil Labs themselves) directly from the Builder

... and many more. For full list of changes see the PsychoPy Changelog
Source code(tar.gz)
Source code(zip)
PsychoPy-2022.1.0.zip(24.35 MB)
StandalonePsychoPy-2022.1.0-macOS.dmg(646.22 MB)
StandalonePsychoPy-2022.1.0-win64.exe(431.99 MB)
2021.2.3(Aug 12, 2021)
Fixes:

on macOS the long-standing issue of the app freezing in the dock has now been fixed #4214

smoother handling of trying to run an experiment on a computer with different mic hardware than where the experiment was created #4210

Minolta LS100/110 was not working due to broken bytes/unicode conversion #4186

ElementArray was not honouring the contrasts (contrs) parameter #4196

Code Components were giving unnecessary warning about namespace issues. Should only warn if a variable name is being shadowed not if it's being used #4193

Source code(tar.gz)
Source code(zip)
PsychoPy-2021.2.3.zip(23.16 MB)
StandalonePsychoPy-2021.2.3-macOS.dmg(680.27 MB)
StandalonePsychoPy-2021.2.3-win64.exe(463.91 MB)
2021.2.2(Aug 2, 2021)
Bug fixes for release 2021.2. See changelog for the new features in the 2021.2 release series

Builder outputs weren't fully honouring the userVersion() request, resulting in broken PsychoJS code 5f10b0a12 017c18f2f31e

Better documentation of (high-performance) VLC movie backend

iohub.Mouse.setPosition was not handling units correctly when given a float

Builder boilerplate for Microphone was looking for a transcription even if none was requested #4163

Source code(tar.gz)
Source code(zip)
PsychoPy-2021.2.2.zip(23.16 MB)
StandalonePsychoPy-2021.2.2-macOS.dmg(680.20 MB)
StandalonePsychoPy-2021.2.2-win64.exe(463.90 MB)
2021.2.1(Jul 23, 2021)
Bug fixes for release 2021.2. See changelog for the new features in the 2021.2 release series

macOS was crashing on launch (caused by missing files from psychtoolbox stripped by macOS GateKeeper)

added cryptography lib explicitly to requirements for pip install 267483d00

Runner local debug of PsychoJS experiments was failing with MIME-type errors (Runner didn't know about new psychojs packaging) #4153

extended timeout when querying Pavlovia from the app (e.g. searching for projects) #4148

corrected reset of clock for new Button Component

DlgFromDict was crashing if labels were used (in code) #4137

short (<0.5s) sounds were not labelled as finished in PsychoJS boilerplate #4117

contrast parameter was not being applied to ShapeStim #4111

Source code(tar.gz)
Source code(zip)
PsychoPy-2021.2.1.zip(23.15 MB)
StandalonePsychoPy-2021.2.1-macOS.dmg(680.28 MB)
StandalonePsychoPy-2021.2.1-win64.exe(463.90 MB)
2021.2.0(Jun 23, 2021)
Highlights:

Unified Eyetracker support via ioHub is now integrated into Builder for easy-to-use eyetracking studies, many improvements and a "MouseGaze" option to simulate eye movements while testing

Mic recordings for voice responses (Python and JS)

Transcription (speech-to-text) via Google Speech or using CMU Pocket Sphinx (free but currently on the Python lib only)

Improved JavaScript outputs from the Builder, providing more seamless migration to web-based studies

Compatibility Changes:

CHANGED: In Python the random number generators for TrialHandlers etc use an improved algorithm (PCG64) and are now indendent of each other but seeded random sequences will differ from previous versions

For the details of all changes see the Changelog

[Update: 2021.2.0.1 Standalone downloads include an updated version of msgpack_numpy due to an issue with the previous version. The PsychoPy code itself within that download is not changed]
Source code(tar.gz)
Source code(zip)
PsychoPy-2021.2.0.zip(23.15 MB)
StandalonePsychoPy-2021.2.0.1-macOS.dmg(680.18 MB)
StandalonePsychoPy-2021.2.0.1-win64.exe(463.89 MB)
2021.1.4(Apr 15, 2021)
FIXES:

Py Lib: Sounds from files were being truncated #3689

Py Lib: TrialHandlerExt now compatible with current numpy (had an index error before) #3705

Py Lib: MoviStim raising an error if opacity was None commit:50334df2f

Py Lib: RIFT backend not working commit:428f62f80

Builder: When letter height was set to a variable it raised an error at run time TypeError: len() of unsized object commit:b1a77ca3a

Builder: Raising an error when floats looking like file names #3719

Builder: better handling of failure to updateVersion commit:afec41226

JS: TextBox when editable was not being reset on each trial #3706

JS: Keyboard should stop consuming keypresses at end of trial, even if not storing data #3706

JS: Add Sound.setSound() method to allow for dynamically deciding audio source psychopy/psychojs#154

JS: Allow for PIXI updates when dynamically adjusting opacity, including on polygons psychopy/psychojs#203

JS: Give Form radio type support psychopy/psychojs#281

JS: Improve ImageStim.setImage() attribute checking psychopy/psychojs#292

JS: Give TrackPlayer fades on play / stop psychopy/psychojs#296

JS: Fix TextBox eating up key presses psychopy/psychojs#302

Source code(tar.gz)
Source code(zip)
PsychoPy-2021.1.4.zip(24.04 MB)
StandalonePsychoPy-2021.1.4-macOS.dmg(613.27 MB)
StandalonePsychoPy3-2021.1.4-win32.exe(316.53 MB)
StandalonePsychoPy3-2021.1.4-win64.exe(398.06 MB)
2021.1.3(Mar 9, 2021)
FIXES:

Builder: Fix 'list' object has no attribute 'contains' with clickable mouse objects #3651

Builder: context (right-click) menu was not aligned with mouse in Flow for large Flows #3657

Builder: Slider styles were not being used correctly from previous versions (<2021.0) #3665

Builder: crash if the filter preference was used to filter out pure Python or pure JS Components from Builder #3649

Builder: Color Picker defaults to RGB to reduce chance of users pasting in RGBA to visual Components #3667

Runner: local debug of online studies working again (was trying to fetch the wrong PsychoJS version) commit:af6622c71

PsychoPy lib: better handling of unknown fonts (fall back to Open Sans and Alert) commit:fba09ef8d

PsychoPy lib: better timing on iohub for macOS key/mouse polling commit:fba09ef8d

Source code(tar.gz)
Source code(zip)
PsychoPy-2021.1.3.zip(24.04 MB)
StandalonePsychoPy-2021.1.3-macOS.dmg(613.27 MB)
StandalonePsychoPy3-2021.1.3-win32.exe(316.46 MB)
StandalonePsychoPy3-2021.1.3-win64.exe(398.06 MB)
2021.1.2(Feb 25, 2021)
FIXES on top of the new features in 2021.1:

Code Components were raising an error when trying to generate JS code #3643

Slider styles weren't generating correct JS code

New Button component (Python only) was not cleaning previous clicks so they tended to act as if clicking all trials! #3641

Source code(tar.gz)
Source code(zip)
PsychoPy-2021.1.2.zip(24.04 MB)
StandalonePsychoPy-2021.1.2-macOS.dmg(613.20 MB)
StandalonePsychoPy3-2021.1.2-win32.exe(316.39 MB)
StandalonePsychoPy3-2021.1.2-win64.exe(398.06 MB)
2021.1.1(Feb 24, 2021)
FIXES:

Error when trying to sync a new project with Pavlovia commit:33b3d80ea

TextBox in Builder was resetting to "default text" on each repeat rather than blank commit:8510d9f1a

Editable elements of Form were being erroneously drawn when they fell beyond the Form boundary commit:7d02c8251

Several improvements to styling of Form (on Python)

Added a preference for Builder to show only the online-compatible Components (or other similar options). This is a BETA testing feature

Source code(tar.gz)
Source code(zip)
PsychoPy-2021.1.1.zip(24.02 MB)
StandalonePsychoPy-2021.1.1-macOS.dmg(613.26 MB)
StandalonePsychoPy3-2021.1.1-win32.exe(316.31 MB)
StandalonePsychoPy3-2021.1.1-win64.exe(398.06 MB)
2021.1.0(Feb 21, 2021)
The first major release of 2021 brings a lot of fixes (we're focussing heavily on making the user experience more smooth at the moment).

On top of those fixes are a number of useful additions though, like the new Button component for adding text-based buttons with callback functions.

NEW:

Builder has a Button component to make it easier to have clickable image/text objects

Builder: Improved layout of Component dialogs:

Consistent tabs for common parameters (like pos, size, color...)

Component parameters that use filenames (sounds, images, etc.) now have a Browse... button

Component parameters that use Excel files now have an “open in Excel” button, if you click this when the field is blank it will open a pre-made template for you

Component parameters that are colors now have a button to open the color picker

Builder now features separate compile buttons for JS and Py and will open the JS file in the Coder view when compiled

Builder readme files now support markdown formatting (and .md extensions) psychopy/psychopy#3377

PsychoPy lib: refactored color handling via the :class:Color class

CHANGES (compatibility issues):

Changed: the new more-flexible parameters of PsychoPy Experiment Components makes experiments from 2021.1 will not run on older versions of PsychoPy. If you share your study with people using older versions make sure you set the :ref:useVersion setting to be 2021.1.0 or upwards so that it will run elsewhere

Changed: PsychoJS: orientation for PsychoJS now follows clock convention rather than engineering convention (polar coordinates, positive rotation is anti-clockwise) whereas PsychoPy used the clock convention. From this release onwards both use the clock convention or orientation/rotation.

Changed: Slider has additional params for colors and fonts of lines/labels/marker that will not exist on older installations

Changed: BufferImageStim was using an incorrect rect specification for selecting the region of the screen - it was using a bottom-left instead of PsychoPy standard center #3597

FIXES:

All: Curly quotation marks (“”), which are sometimes automatically put into text boxes by MacOS and certain keyboard settings, will now be automatically replaced with regular quotation marks (“) when in code. To use curly quotation marks still, you can “escape” them by putting a \ before them.

Lib: Fixed syntax warnings on Python 3.8 #3344

Lib: The Pygame audio backend can be used again. #3382

Lib: Several fixes to iohub ( #3348, #3399, #3412, commit psychopy/psychopy/3912167)

Builder/Coder: Fixed the error raised when the “Plot gamma” button in the monitor center is clicked but no calibration data is loaded. #3384

Coder/Builder: Correct detection of retina/high-dpi displays within wxPython on MacOS, Linux, and Windows.

Python Lib: TextBox stim text layout not working on linux and macOS.

Python Lib: various minor fixes to TextBox2

Coder: Miscellaneous bug fixes to demos/coder/stimuli example scripts.

Coder: Fixed a possible error when parsing code to build the source tree.

Coder: Handle error caused when closing editor tabs.

Builder: The “Routine” pane can no longer be- moved which broke the builder interface.

Coder: Make Coder's default size reasonable on fresh install. #3472

Coder: Bug where opening an unsupported file type raises an error. #3519

Coder: Fixed bug where the source tree raises and error if it comes across things it cannot correctly parse.

Online: Prevent Safari from beeping in full screen. psychopy/psychojs#266

Online: Slider sizing, tick placement, and event handling improvements. #249 #263 #264

Online: Fixed ShapeStim instances ignoring the closeShape property. psychopy/psychojs#245

Online: Support TrialHandler.Method.FULLRANDOM. psychopy/psychojs#247

Online: Improved mouse event accuracy overall. psychopy/psychojs#248

Online: Fixed ShapeStim variants ignoring the contrast property. psychopy/psychojs#250

Online: Fixed an issue translating ‘\n’ encoded line breaks when importing conditions files. psychopy/psychojs#251

Online: Fixed TextBox click handling. psychopy/psychojs#258

Online: Improved MovieStim autoplay. psychopy/psychojs#260

Online: Allow for parsing of array-like strings when setting VisualStim position or size. psychopy/psychojs#262

Online: Prevent Safari from beeping in full screen. psychopy/psychojs#266

Source code(tar.gz)
Source code(zip)
PsychoPy-2021.1.0.zip(24.05 MB)
StandalonePsychoPy-2021.1.0-macOS.dmg(613.38 MB)
StandalonePsychoPy3-2021.1.0-win32.exe(316.24 MB)
StandalonePsychoPy3-2021.1.0-win64.exe(398.05 MB)
2020.2.10(Dec 4, 2020)
Further fixes on top of the new features in 2020.2:

Fixed rendering of TextBox2 following Big Sur update of 2020.2.7 commit:0fcb89c54 commit:39777a3e0 commit:1aec9abb9

Fixed handling of continueRoutine=False in BeginExperiment of online studies commit:ae20cb12f

Erroneous warnings about code being used as parameters commit:40bbfe1a3

Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.10.zip(23.28 MB)
StandalonePsychoPy-2020.2.10-macOS.dmg(609.93 MB)
StandalonePsychoPy3-2020.2.10-win32.exe(314.56 MB)
StandalonePsychoPy3-2020.2.10-win64.exe(397.29 MB)
2020.2.9(Nov 27, 2020)
Further fixes on top of the new features in 2020.2:

TextBox2 broke in 2020.2.8 due to switch from PyOpenGL to pyglet.gl in text rendering commit:39777a3e0 commit:1aec9abb9

Fixed error Unknown colorSpace: 'Named' commit:da234cc46

Superfluous debug messages from ioHub when no key pressed commit:9589e4865

Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.9.zip(23.28 MB)
StandalonePsychoPy-2020.2.9-macOS.dmg(609.96 MB)
StandalonePsychoPy3-2020.2.9-win32.exe(314.49 MB)
StandalonePsychoPy3-2020.2.9-win64.exe(397.29 MB)
2020.2.8(Nov 21, 2020)
FIXES:

support for macOS 11.1 Big Sur (updated mac pyglet to 1.5.11 and mac Python to 3.6.8)

fixed default blank text in textBox for online studies actually showing a pair of quotes commit:786e1d3f7

flag to alphabetically sort Exp Info fields was being set always true #3279

Position and Size params for Form Component were being requested twice commit:d45ca99c9

fixed annoying (but harmless) error 'ModuleNotFoundError: import of pyglet halted; None in sys.modules'

further fixes to Runner not showing print() statements commit:e0ec67e6f

Routine panels now support mouse scroll wheel to navigate commit:6da3707d3

Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.8.zip(23.28 MB)
StandalonePsychoPy-2020.2.8-macOS.dmg(609.96 MB)
StandalonePsychoPy3-2020.2.8-win32.exe(314.42 MB)
StandalonePsychoPy3-2020.2.8-win64.exe(397.29 MB)
2020.2.6(Nov 13, 2020)
Fixes on top of the new features in 2020.2:

missing resource error in some online experiments, caused by incorrect relative relative paths in Settings>Online>Resources #3285

JavaScript Code Components for Before Experiment is now moved earlier in the script - it needed to be positioned before first function opens #3289

TextBox was missing setBorderColor and setFillColor so these needed code to change dynamically commit:eb915732d

TextBox was carrying the text from one trial into the next commit:330f5fa1d

Coder FoldAll menu item was having no effect commit:6d4f66b0d

TextStim opacity can now be set dynamically #1045

Loop OK button was sometimes left disabled if invalid inputs commit:3a1104f71

fixed non-uniform probabilities of conditions file row selection suggested in docs #3256

workaround for scipy.optimize import error on windows machines that are using BitLocker #3287

if a TextBox is the only editable thing on the screen then give it focus #3269

Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.6.zip(23.28 MB)
StandalonePsychoPy-2020.2.6-macOS.dmg(584.62 MB)
StandalonePsychoPy3-2020.2.6-win64.exe(397.29 MB)
2020.2.5(Oct 24, 2020)
Lots of fixes on top of the features introduced in 2020.2

Now code-signing the installer on Windows as well as macOS

Failing to send print statements to output, depending on how PsychoPy was launched commit:4773ec32d Only occured if you launch by double-clicking file or if you close Runner

Coder crashing on macOS when using editor with autocomplete=True commit:687e81dfb

ioHub fix for unicode strings commit:5451ea49a

Marker color on RatingScale was not resetting (but use Slider anyway!) #3140

Runner sometimes ran wrong script (and never knew which to stop). Now better tracking of running process #3142

Slider not honoring the order from the Routine (should render in order from top down) commit:9e0299544

JavaScript Code Components for Before Experiment were having no effect #3151

error with trying to poll() on a script process that was NoneType commit:cc56713cc

Editable textboxes were still able to be drawn if you clicked on them (even when they were not told to draw()) commit:8253f0696

warn against using global JS names in experiment #3177

Brush not being reset in JavaScript commit:88812c3bd

Movie reset issue #3183

countinueRoutine=False had no effect for online studies if in Begin Routine block

errors that should have appeared in the console were sometimes appearing in the (app) error dialog commit:d44f24d63

more tolerant of whitespace in Emotiv Client ID file

Runner AddTask dialog had wrong format for file filter #3213

Sound volume attribute was having no effect on the PTB backend #3215

Fixed fill/line colors of TextBox #3222

Error in JavaScript code when Movie Component had blank stop time commit:0b4ddcffc

Better handling of stdout encodings when console not set to utf-8 encoding commit:d77535906

Improved Resources box for the online (using relative references commit:c9558bfd8 and resize with dialog commit:d607271db)

JavaScript code-conversion now uses our own built-in round() function mimicking the same function in Python commit:da426d9e3

Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.5.zip(23.27 MB)
StandalonePsychoPy-2020.2.5-macOS.dmg(584.64 MB)
StandalonePsychoPy3-2020.2.5-win32.exe(314.20 MB)
StandalonePsychoPy3-2020.2.5-win64.exe(397.28 MB)
2020.2.4(Sep 7, 2020)
FIXES:

improved search for resources files whne compiling JS (was crashing if using root folder and using code to specify the conditions file) 09816985d5

the Before Experiment section of Code Components wasn't being written for JavaScript components bbfd310

error with wx complaining about Alignment (in wx 4.1) a32e2ca ae508d6

TextBox Component default size is None (=autoexpand)

TextBox editable=True had no effect on the Builder outputs to JavaScript

themes menu correctly updates what thte current them is in all open windows c5cdc49

custom fonts that didn't provide a "family name" were causing the font search to crash ef078ab

bug trying to us an invalid "useRunner" preference 3532e4c

JavaScript studies failed if there were 2 Mouse Components in a single Routine 0e0b26d4dcc 32a6be2

improved Big Five Inventory demo

blank TextBox Component should use blank string rather than None 39bf1bb

further fix to macOS stapling (might not have worked for users with no internet connection?)

Form Component now honors being set to show only at certain times (in keeping with other visual Components) 35ad5bc

Coder now correctly providing syntax styling for JS and C

Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.4.zip(23.33 MB)
StandalonePsychoPy-2020.2.4-macOS.dmg(584.18 MB)
StandalonePsychoPy3-2020.2.4-win32.exe(314.13 MB)
StandalonePsychoPy3-2020.2.4-win64.exe(397.27 MB)
2020.2.3(Aug 22, 2020)
All the highlights of the 2020.2.2 but with these FIXES:

Mac version now fully signed and notarized for GateKeeper! For some time it's been an annoyance that Apple would block PsychoPy because of it not being from a "known developer" but in recent updates GateKeeper has become so aggressive the app has been crashing on startup for some macOS versions. Hopefully Apple will now let us launch in peace!

better handling of non-loading fonts in the application On mac some fonts weren't being found (although this might be due to the now-solved gatekeeper issue)

auto-translate py->js for parameters with $ We were translating code components but not parameter boxes where the user was switching to code using $ #3064

better handling when a piece of code fails to convert (warning not error) #3063

show progress (in Runner) while syncing project with Pavlovia #3061

various fixes and additions to Japanese translations

Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.3.zip(23.31 MB)
StandalonePsychoPy3-2020.2.3-MacOS.dmg(583.90 MB)
StandalonePsychoPy3-2020.2.3-win32.exe(314.03 MB)
StandalonePsychoPy3-2020.2.3-win64.exe(397.25 MB)
2020.2.3rc1(Aug 19, 2020)

Testing a new version for Mac. Many thanks to those that have helped us work out why it wasn't running on some macs. A number of issue have been solved and this is a chance to test what versions of macOS it now works on. I believe there are still some issues with Apple blocking parts of the application from working properly but hopefully we'll get a fully code-signed version working soon too.
Source code(tar.gz)
Source code(zip)
PsychoPy_2020.2.3rc3.dmg(567.07 MB)
2020.2.2(Aug 9, 2020)
Couple of quick fixes (don't crash if the system has an invalid font) and added a Mac Standalone dmg

As always be cautious - this is an early release and lots of code has changed. In particular in this version the new TextBox and Form objects are certainly in beta and should be tested carefully in your study

For full details see https://www.psychopy.org/changelog.html

2020.2 HIGHLIGHTS :

New look, including dark mode, customizable themes and new flat buttons (you can choose a Classic theme to get the old buttons back for comfort)

Now have an class for /editable/ text called TextBox2 (Beta testing) :

Form (Beta testing) components now work online and support (in both lab-based and online versions):

Improved Coder

Improved Runner

Online studies don't need to use html folder

Added support for Emotive and BrainProducts EEG hardware

CSV data outputs now have an option to set the delimitter (e.g. ; or \t rather than ,)

CHANGES:

PsychoJS code now uses the same syntax for loop termination as PsychoPy allowing either nameOfLoop.finished=true or currentLoop.finished=true

Python 2.7 is no longer supported. We recommend Python versions 3.6 or 3.7 (3.8 is not tested likely to work)

Sorry - no Mac Standalone right now but you can install using pip!
Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.2.zip(23.30 MB)
StandalonePsychoPy3-2020.2.2-MacOS.dmg(647.39 MB)
StandalonePsychoPy3-2020.2.2-win32.exe(313.70 MB)
StandalonePsychoPy3-2020.2.2-win64.exe(396.19 MB)
2020.2.1(Aug 7, 2020)
As always be cautious - this is an early release and lots of code has changed. In particular in this version the new TextBox and Form objects are certainly in beta and should be tested carefully in your study

For full details see https://www.psychopy.org/changelog.html

2020.2 HIGHLIGHTS :

New look, including dark mode, customizable themes and new flat buttons (you can choose a Classic theme to get the old buttons back for comfort)

Now have an class for /editable/ text called TextBox2 (Beta testing) :

Form (Beta testing) components now work online and support (in both lab-based and online versions):

Improved Coder

Improved Runner

Online studies don't need to use html folder

Added support for Emotive and BrainProducts EEG hardware

CSV data outputs now have an option to set the delimitter (e.g. ; or \t rather than ,)

CHANGES:

PsychoJS code now uses the same syntax for loop termination as PsychoPy allowing either nameOfLoop.finished=true or currentLoop.finished=true

Python 2.7 is no longer supported. We recommend Python versions 3.6 or 3.7 (3.8 is not tested likely to work)

Sorry - no Mac Standalone right now but you can install using pip!
Source code(tar.gz)
Source code(zip)
PsychoPy-2020.2.1.zip(23.23 MB)
StandalonePsychoPy3-2020.2.1-win32.exe(313.63 MB)
StandalonePsychoPy3-2020.2.1-win64.exe(396.18 MB)