Emacs Python Development Environment

Jorgen Schäfer

Last update: Jan 2, 2023

Related tags

Editor Plugins elpy

Overview

https://github.com/jorgenschaefer/elpy/workflows/Tests/badge.svg?branch=master

https://coveralls.io/repos/jorgenschaefer/elpy/badge.svg?branch=master

Elpy, the Emacs Python IDE

Elpy is an Emacs package to bring powerful Python editing to Emacs. It combines and configures a number of other packages, both written in Emacs Lisp as well as Python. Elpy is fully documented at Readthedocs.

Features

Installation

Elpy is available on Melpa, the most straightforward way to install it is to use use-package:

(use-package elpy
  :ensure t
  :init
  (elpy-enable))

For other installation alternatives, see the documentation.

Quickstart

Once installed, Elpy will automatically provide code completion, syntax error highlighting and code hinting (in the modeline) for python files. Elpy offers a lot of features, but the following keybindings should be enough to get started:

C-c C-c evaluates the current python script (or region if something is selected) in an interactive python shell. The python shell is automatically displayed aside of your script.
C-RET evaluates the current statement (current line plus the following nested lines).
C-c C-z switches between your script and the interactive shell.
C-c C-d displays documentation for the thing under cursor. The documentation will pop in a different buffer, that can be closed with q.

Please have a look at the documentation at Readthedocs if you want to know more about what Elpy can do.

External resources

Emacs: The Best Python Editor? by Jon Fincher
Managing a Python development environment in Emacs by Diego Fernández Giraldo
Configuring GNU emacs with elpy on MacOS by Kenneth H. East

Contact

For questions regarding Elpy, do not hesitate to open an issue on github or visit us on IRC, channel #emacs-elpy on irc.freenode.net.

If you would like to support this work, you can become a patreon: https://www.patreon.com/jorgenschaefer Please note that this is completely voluntary, and does not make you more important than others when it comes to issues, feature requests or anything. I appreciate donations, but do not feel compelled to spend money, and do not feel bad if you don't.

Comments

elpy-shell-send-region-or-buffer show strange letters ^G

Summary

I cannot use C-c C-c to send region to shell.

Steps to reproduce

test.py

alist = [i for i in range(3)]
numbers = [-1, -2, -3]

elpy-shell-switch-to-shell
python-shell-send-region it works as expected.
elpy-shell-send-region-or-buffer shell pended as beblow:

In [14]: alist = [i for i in range(3)]
    ...: numbers = [-1, -2, -3]
^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G

My configuration

OS

macos 10.14.2

Result of `(elpy-config)`

Virtualenv........: None
RPC Python........: 3.7.2 (/usr/local/bin/python3)
Interactive Python: jupyter (/usr/local/bin/jupyter)
Emacs.............: 26.1
Elpy..............: 1.28.0
Jedi..............: 0.13.3
Rope..............: 0.12.0
Autopep8..........: 1.4.3
Yapf..............: 0.26.0
Black.............: Not found (18.9b0 available)
Syntax checker....: flake8 (/Users/urugang/Library/Python/3.7/bin/flake8)

Elpy configuration in my init.el

(use-package elpy
  :ensure t
  :config (setq python-shell-interpreter "python3")

  (put 'set-goal-column 'disabled nil)
  (elpy-enable)
  (setq elpy-rpc-ignored-buffer-size (* 1024 1024 1024))


  ;; interactive python
  (setq python-shell-interpreter-args "-i"
        elpy-rpc-python-command "python3")

  (setq python-shell-interpreter "jupyter"
        python-shell-interpreter-args "console --simple-prompt"
        python-shell-prompt-detect-failure-warning nil)
  (setq python-indent-guess-indent-offset t)
  (setq python-indent-guess-indent-offset-verbose nil)
  (add-to-list 'python-shell-completion-native-disabled-interpreters
             "jupyter"))

OSX-related

opened by urugang 61

fix a bug: elpy-find-file does not prune enough

(elpy-project-ignored-directories): extend the standard vc-directory-exclusion-list

(elpy-ffip-prune-patterns): extend ffip-prune-patterns using elpy-project-ignored-directories and completion-ignored-extensions

(elpy-find-file): bind ffip-prune-patterns to elpy-ffip-prune-patterns
Enhancement

opened by sam-s 60

100% CPU Utilization

When I move around in the dir2pi() function in libpip2pi/commands.py of pip2pi, I reliably get 100% CPU utilization. Elpy 1.0 on Emacs 24.3.1 on OS X 10.7

I set debug-on-quit and got the traceback below. It's gzipped, then base64-encoded. Sorry, but when I pasted the raw text in, Github Issues failed to save it—undoubtedly because of the 29,000-character lines. And there's no way to attach an arbitrary file.

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skFaMkhLBmnJIC0ZpCWDtGSQlgzSkkFaMkhLBmnJIC0ZpCWDtGSQFbwlg7RkkJYM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Bug (high priority) Can't reproduce

opened by georgevreilly 56

elpy spawns non-finishing sub-processes

Summary

elpy spawns non-finishing sub-processes which after a while take all the RAM.

amanol   27432 27296  0 22:36 ?        00:00:00 /usr/bin/python -W ignore -m elpy.__main__
amanol   27435 27432  0 22:36 ?        00:00:00 /usr/bin/python /home/amanol/.local/lib/python2.7/site-packages/jedi/evaluate/compiled/subprocess/__main__.py /usr/lib/python2.7/site-packages 2.7.15
amanol   27497 27432  0 22:37 ?        00:00:00 /usr/bin/python /home/amanol/.local/lib/python2.7/site-packages/jedi/evaluate/compiled/subprocess/__main__.py /usr/lib/python2.7/site-packages 2.7.15
amanol   27501 27432  0 22:37 ?        00:00:00 /usr/bin/python /home/amanol/.local/lib/python2.7/site-packages/jedi/evaluate/compiled/subprocess/__main__.py /usr/lib/python2.7/site-packages 2.7.15
amanol   27505 27432  0 22:37 ?        00:00:00 /usr/bin/python /home/amanol/.local/lib/python2.7/site-packages/jedi/evaluate/compiled/subprocess/__main__.py /usr/lib/python2.7/site-packages 2.7.15
amanol   27509 27432  0 22:37 ?        00:00:00 /usr/bin/python /home/amanol/.local/lib/python2.7/site-packages/jedi/evaluate/compiled/subprocess/__main__.py /usr/lib/python2.7/site-packages 2.7.15
amanol   27513 27432  0 22:37 ?        00:00:00 /usr/bin/python /home/amanol/.local/lib/python2.7/site-packages/jedi/evaluate/compiled/subprocess/__main__.py /usr/lib/python2.7/site-packages 2.7.15
amanol   27517 27432  0 22:37 ?        00:00:00 /usr/bin/python /home/amanol/.local/lib/python2.7/site-packages/jedi/evaluate/compiled/subprocess/__main__.py /usr/lib/python2.7/site-packages 2.7.15

gdb   27435
GNU gdb (GDB) Fedora 8.1.1-3.fc28
....
missing separate debuginfos, use: dnf debuginfo-install python2-2.7.15-3.fc28.x86_64
(gdb) bt
#0  0x00007fb0bce2de21 in read () from /lib64/libc.so.6
#1  0x00007fb0bcdbf6e0 in __GI__IO_file_underflow () from /lib64/libc.so.6
#2  0x00007fb0bcdbe768 in __GI__IO_file_xsgetn () from /lib64/libc.so.6
#3  0x00007fb0bcdb38e7 in fread () from /lib64/libc.so.6
#4  0x00007fb0adc29bd6 in read_file () from /usr/lib64/python2.7/lib-dynload/cPickle.so
#5  0x00007fb0adc24a9e in load () from /usr/lib64/python2.7/lib-dynload/cPickle.so
#6  0x00007fb0adc2b9e8 in cpm_load () from /usr/lib64/python2.7/lib-dynload/cPickle.so
#7  0x00007fb0bdc2d8f3 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0
#8  0x00007fb0bdc2d25c in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0
#9  0x00007fb0bdc2d25c in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0
#10 0x00007fb0bdc2e9b2 in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0
#11 0x00007fb0bdc2ec4d in PyEval_EvalCode () from /lib64/libpython2.7.so.1.0
#12 0x00007fb0bdc34bcf in run_mod () from /lib64/libpython2.7.so.1.0
#13 0x00007fb0bdc34b80 in PyRun_FileExFlags () from /lib64/libpython2.7.so.1.0
#14 0x00007fb0bdc3498c in PyRun_SimpleFileExFlags () from /lib64/libpython2.7.so.1.0
#15 0x00007fb0bdc3a4c8 in Py_Main () from /lib64/libpython2.7.so.1.0
#16 0x00007fb0bcd6611b in __libc_start_main () from /lib64/libc.so.6
#17 0x0000556d0733484a in _start ()
(gdb)

Steps to reproduce

open a python file
run M-x elpy-enable
reload the file
anything related with the code check spawns some python process

My configuration

OS

fedora 28 64bit, emacs 26.1

Result of `(elpy-config)`

Elpy Configuration

Virtualenv........: None
RPC Python........: 2.7.15 (/usr/bin/python)
Interactive Python: python (/usr/bin/python)
Emacs.............: 26.1
Elpy..............: 1.25.0
Jedi..............: 0.13.1
Rope..............: 0.11.0
Autopep8..........: 1.4
Yapf..............: 0.24.0
Black.............: Not found
Syntax checker....: flake8 (/home/amanol/.local/bin/flake8)

Elpy configuration in my init.el

Nothing, just run
M-x elpy-enable

opened by apmanol 46

Backend error

When I open a python file and move the cursor in the buffer, a new pane appears with the following output:

Error initializing Elpy

There was an error when trying to start the backend. Elpy can not work
until this problem is solved. The following lines were received from
Python, and might help identifying the problem.

Unhandled exception in thread started by

What can I do to find the root cause?

Bug (high priority)

opened by spacecowboy 42

Add support for import manipulation with importmagic
Add a class that bridges to an importmagic symbol index

Add RPC calls to fixup imports, or add a single import

Add Elisp functions to use these features.

(elpy-importmagic-add-import): Query user for a name to import and the module to import it from. A list of candidate modules is fetched from the symbol index. The import block is updated automatically.

(elpy-importmagic-fixup): Fixup imports (remove unneeded imports and add imports for unresolved identifiers). [This feature seems to be a bit broken in importmagic.]

Related to #330.
Enhancement
opened by birkenfeld 39
Flymake: Configuration error

Dear all,

I installed elpy as instructed on https://github.com/jorgenschaefer/elpy but I am having problems with Flymake.

Initially I was getting a 'command not found' as described here https://github.com/jorgenschaefer/elpy/issues/71

Then I did M-x customize-variable RET python-check-command RET and set it to the full path (which is not a conventional path: I have all packages installed through pip in a personal directory, e.g. ~/mypips/pyflakes/scripts/pyflakes.py)

Now I am getting
"Flymake: Configuration error has occured while running (fullpath/pyflakes/scripts/pyflakes.py test_flymake.py) Flymake will be switched off."

Certainly the file 'test_flymake.py' is absent, what I really have is 'test.py'.

I'l appreciate some hints to fix my installation, Thanks, Temok
Question More Info Needed

opened by temok-cse 34
org-mode compatibility
Perhaps related to #130

Current elpy and python in Org don't play well together. I'm having trouble getting a simple example demonstrating this, but in my non-trivial .emacs setup if I have (elpy-enable) then I can't run python babel block correctly.

Currently I load elpy like this:

(add-to-list 'auto-mode-alist '("\\.py" . python-mode)) (autoload 'python-mode "python-kdm" nil t)

And then in python-kdm.el I have

(elpy-enable) (elpy-use-ipython) (elpy-clean-modeline) (setq elpy-rpc-backend "rope")

If I comment those out, everything works. Is there a way to load elpy only when I'm editing a .py that isn't loaded auto-magically from inside Org mode?

I know you don't use Org and this is a bit outside the scope of this project, but it would be very nice if I could use elpy for my bigger python code scripts and still use Org for small snippets run inside Org.
Enhancement More Info Needed
opened by mankoff 32

Tiresome errors from elpy RPC backend

Hi,

I'm getting heaps of the same 2 error messages while using elpy. Message is:

error in process filter: elpy-rpc--default-error-callback: Wrong type argument: stringp, nil
error in process filter: Wrong type argument: stringp, nil
error in process filter: elpy-rpc--default-error-callback: Wrong type argument: stringp, nil
error in process filter: Wrong type argument: stringp, nil
error in process filter: elpy-rpc--default-error-callback: Wrong type argument: stringp, nil
error in process filter: Wrong type argument: stringp, nil
error in process filter: elpy-rpc--default-error-callback: Wrong type argument: stringp, nil
error in process filter: Wrong type argument: stringp, nil
error in process filter: elpy-rpc--default-error-callback: Wrong type argument: stringp, nil
error in process filter: Wrong type argument: stringp, nil
error in process filter: elpy-rpc--default-error-callback: Wrong type argument: stringp, nil
error in process filter: Wrong type argument: stringp, nil
error in process filter: elpy-rpc--default-error-callback: Wrong type argument: stringp, nil
error in process filter: Wrong type argument: stringp, nil

With

M-x toggle-debug-upon-error


Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  signal(wrong-type-argument (stringp nil))
  elpy-rpc--default-error-callback((wrong-type-argument stringp nil))
  elpy-promise-reject([*elpy-promise* #[257 "\303 \210\301\203�\304\300\"\202 �\300G\nV\203�\305\306\307\300\"!\202 �\310!\207" [#("total_score" 0 11 (fontified t)) #[257 "\211\203�\301\242\307=\204�\301\240\207\306\f\300\310!BC
\311\312DC\216\313\302\303\304\305$)\207" [#("total_score" 0 11 (fontified t)) (done) #<buffer models.py<app>> #<window 3 on models.py<app>> 158385 5861 elpy-company-backend done company--preprocess-candidates funcall #[0 "?\205\n�\303\211\211\207" [company-candidates company-backend company-candidates-cache nil] 3 "\n\n(fn)"] company-idle-begin company-backend company-candidates-cache] 6 "\n\n(fn CANDIDATES)"] company-minimum-prefix-length elpy-company--cache-clear elpy-company--cache-completions elpy--sort-and-strip-duplicates company-dabbrev-code candidates nil] 6 "\n\n(fn RESULT)"] elpy-rpc--default-error-callback #<buffer models.py<app>> nil] (wrong-type-argument stringp nil))
  #[257 "\301\300\"\207" [[*elpy-promise* #[257 "\303 \210\301\203�\304\300\"\202 �\300G\nV\203�\305\306\307\300\"!\202 �\310!\207" [#("total_score" 0 11 (fontified t)) #[257 "\211\203�\301\242\307=\204�\301\240\207\306\f\300\310!BC
\311\312DC\216\313\302\303\304\305$)\207" [#("total_score" 0 11 ...) (done) #<buffer models.py<app>> #<window 3 on models.py<app>> 158385 5861 elpy-company-backend done company--preprocess-candidates funcall #[0 "?\205\n�\303\211\211\207" [company-candidates company-backend company-candidates-cache nil] 3 "\n\n(fn)"] company-idle-begin company-backend company-candidates-cache] 6 "\n\n(fn CANDIDATES)"] company-minimum-prefix-length elpy-company--cache-clear elpy-company--cache-completions elpy--sort-and-strip-duplicates company-dabbrev-code candidates nil] 6 "\n\n(fn RESULT)"] elpy-rpc--default-error-callback #<buffer models.py<app>> nil] elpy-promise-reject] 4 "\n\n(fn ERR)"]((wrong-type-argument stringp nil))
  funcall(#[257 "\301\300\"\207" [[*elpy-promise* #[257 "\303 \210\301\203�\304\300\"\202 �\300G\nV\203�\305\306\307\300\"!\202 �\310!\207" [#("total_score" 0 11 (fontified t)) #[257 "\211\203�\301\242\307=\204�\301\240\207\306\f\300\310!BC
\311\312DC\216\313\302\303\304\305$)\207" [#("total_score" 0 11 ...) (done) #<buffer models.py<app>> #<window 3 on models.py<app>> 158385 5861 elpy-company-backend done company--preprocess-candidates funcall #[0 "?\205\n�\303\211\211\207" [company-candidates company-backend company-candidates-cache nil] 3 "\n\n(fn)"] company-idle-begin company-backend company-candidates-cache] 6 "\n\n(fn CANDIDATES)"] company-minimum-prefix-length elpy-company--cache-clear elpy-company--cache-completions elpy--sort-and-strip-duplicates company-dabbrev-code candidates nil] 6 "\n\n(fn RESULT)"] elpy-rpc--default-error-callback #<buffer models.py<app>> nil] elpy-promise-reject] 4 "\n\n(fn ERR)"] (wrong-type-argument stringp nil))
  elpy-promise-resolve([*elpy-promise* #[257 "\303 \210\301\203�\304\300\"\202 �\300G\nV\203�\305\306\307\300\"!\202 �\310!\207" [#("total_score" 0 11 (fontified t)) #[257 "\211\203�\301\242\307=\204�\301\240\207\306\f\300\310!BC
\311\312DC\216\313\302\303\304\305$)\207" [#("total_score" 0 11 (fontified t)) (done) #<buffer models.py<app>> #<window 3 on models.py<app>> 158385 5861 elpy-company-backend done company--preprocess-candidates funcall #[0 "?\205\n�\303\211\211\207" [company-candidates company-backend company-candidates-cache nil] 3 "\n\n(fn)"] company-idle-begin company-backend company-candidates-cache] 6 "\n\n(fn CANDIDATES)"] company-minimum-prefix-length elpy-company--cache-clear elpy-company--cache-completions elpy--sort-and-strip-duplicates company-dabbrev-code candidates nil] 6 "\n\n(fn RESULT)"] elpy-rpc--default-error-callback #<buffer models.py<app>> nil] nil)
  elpy-rpc--handle-json(((id . 13) (result)))
  elpy-rpc--filter(#<process  *elpy-rpc [project:~/src/app/ python:/Users/svithlani/src/app/bin/python]*> "{\"result\": [], \"id\": 13}\n")

Elpy version is 1.14.1.

Any idea?

Sawan

Bug (high priority)

opened by sawan 31

Test commands do not need quote escapes on Windows

Another one for Windows compatibility. In essence, on Windows we do not need to escape quotes in the test run command. Test commands started from elpy will fail.

My approach was to let bind the correct function depending on OS and leave the mapping in. For Windows the identity function is mapped.

The Travis CI results show that this does not work on Emacs version 24.3. Any ideas why it is just failing for that version?

Also, I was trying to add a test for this, but found no test-quote-escape-in-test-run or similar in the test suite. Also, I do not quite know how I would go about to test this function. Should we refactor the quote escape mapping to a separate function that just returns the test command string (so we can test it separately)?
Bug (high priority)

opened by fleimgruber 31
Emacs RPC communication on windows freezes Emacs

I'm having Emacs freeze totally periodically after adding elpy -- I'm using the package elpy-20140213.1028 (version 1.3.0, according to elpy.el).

It happens when I'm just typing -- looks like autocomplete gets triggered, but then there is a total freeze, so I can't tell you what elpy-rpc says.
Bug (high priority) Can't reproduce

opened by adamc55 29
elpy-black-fix-code ignores black configuration if python package `toml` is not installed
Since https://github.com/jorgenschaefer/elpy/pull/1611, elpy relies on the toml package to read black configuration files, which was a dependency of black at the time.

However, since version 21.7b0, black does not depend on toml anymore (cf https://github.com/psf/black/pull/2301), thus toml is not installed automatically. If toml is not found, the black configuration file is ignored by elpy-black-fix-code.

I stumbled upon this after recreating the RPC venv for elpy, and it took me quite some time to understand why my code was not formatted according to my configuration, so I thought I'd let you know.

Workaround

Install toml in the elpy RPC venv:

source $HOME/.emacs.d/elpy/rpc-venv/bin/activate pip install toml

Additional notes

Might be relevant: black now uses tomli to read toml files for python < 3.11, and the standard module tomllib for python >= 3.11.
opened by marc-legendre 1
Recognize Breakpoints in Multiple Buffers
With this feature debugger will not just interrupt execution at breakpoints in the buffer it was called on (main buffer) but also on breakpoints that were set in other buffers that whose code has been executed by main buffer.

Thus when we set a breakpoint inmain.py buffer and one in submodule/mod.pybuffer starting the debugger in main will interrupt on execution of main but recognize the breakpoint in submodule/mod.py and interrupt execution.

main.py -- submodule/mod.py
opened by pweibert 0

The Python interpreter could not find the elpy module.

Hi,

My environment:

OS: Linux Ubuntu 22.04.01 (64 bits)
Kernel version: 5.15.0-56-generic
Emacs version: 28.2
Python version: 3.11.1 (64 bits)
GCC version: gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0

When I run M-elpy-config in Emacs, here is what I see:

Elpy Configuration

Emacs.............: 28.2
Elpy..............: Not found (Python), 1.35.0 (Emacs Lisp)
Virtualenv........: 3.11_ve_01 (/home/training/Documents/python_venvs/3.11_ve_01)
Interactive Python: python 3.11.1 (/home/training/Documents/python_venvs/3.11_ve_01/bin/python)
RPC virtualenv....: 3.11_ve_01 (/home/training/Documents/python_venvs/3.11_ve_01)
 Python...........: python nil (/home/training/Documents/python_venvs/3.11_ve_01/bin/python)
 Jedi.............: Not found
 Autopep8.........: Not found
 Yapf.............: Not found
 Black............: Not found
Syntax checker....: flake8 (/home/training/Documents/python_venvs/3.11_ve_01/bin/flake8)

Warnings

The directory ~/.local/bin/ is not in your PATH. As there is no active
virtualenv, installing Python packages locally will place executables
in that directory, so Emacs won't find them. If you are missing some
commands, do add this directory to your PATH -- and then do
`elpy-rpc-restart'.

The Python interpreter could not find the elpy module. Please report
to: https://github.com/jorgenschaefer/elpy/issues/new.

There was an unexpected problem starting the RPC process. Please check
the following output to see if this makes sense to you. To me, it
doesn't.

Objects/typeobject.c:6064: type_ready_pre_checks: Assertion "type->tp_call != ((void *)0)" failed
Enable tracemalloc to get the memory block allocation traceback

object address  : 0x5645b86087e0
object refcount : 1
object type     : 0x7fafaca71aa0
object type name: type
object repr     : 

Elpy could not connect to Pypi (or at least not quickly enough) and
check if the python packages were up-to-date. You can still try to
update all of them:

[Update python packages]

The Jedi package is not currently installed. This package is needed
for code completion, code navigation and access to documentation.

[Install jedi]

No autoformatting package is currently installed. At least one is
needed (Autopep8, Yapf or Black) to perform autoformatting (`C-c C-r
f` in a python buffer).

[Install autopep8]
[Install yapf]
[Install black]

Options

`Raised' text indicates buttons; type RET or click mouse-1 on a button
to invoke its action.  Invoke [+] to expand a group, and [-] to
collapse an expanded group.  Invoke the [Group], [Face], and [Option]
buttons below to edit that item in another window.

[+]-- Group Elpy
[+]-- Group Python
[+]-- Group Virtual Environments (Pyvenv)
[+]-- Group Completion (Company)
[+]-- Group Call Signatures (ElDoc)
[+]-- Group Inline Errors (Flymake)
[+]-- Group Code folding (hideshow)
[+]-- Group Snippets (YASnippet)
[+]-- Group Directory Grep (rgrep)
[+]-- Group Search as You Type (ido)
[+]-- Group Django extension
[+]-- Group Autodoc extension

I always start my python virtual environment in a terminal and then within the same terminal I run emacs &. Therefore when I run M-elpy-config, there is already a running Python virtual environment in which I have already installed (via pip install): Jedi, Autopep8, Yapf, Black. So I don't really understand why it says that these tools have not been installed. Moreover the following portion of the above error/warning messages is completely new to me:

Objects/typeobject.c:6064: type_ready_pre_checks: Assertion "type->tp_call != ((void *)0)" failed
Enable tracemalloc to get the memory block allocation traceback

object address  : 0x5645b86087e0
object refcount : 1
object type     : 0x7fafaca71aa0
object type name: type
object repr     :

Am I missing something?

opened by parvizfarnia 0

Virtualenv has something wrong

Summary

I think Jedi not working with virtualenv. When i set the environment variable WORKON_HOME = $HOME/.virtualenvs, Elpy becomes error and can't use the workon command. Is there any other way i can use other virtual environments in this case. Thank you!

Steps to reproduce

My configuration

OS

Window 10 Pro

Result of `(elpy-config)`

Emacs.............: 28.2
Elpy..............: 1.35.0
Virtualenv........: None
Interactive Python: ipython3 8.7.0 (c:/Users/THAY PHACH/AppData/Local/Programs/Python/Python39/Scripts/ipython3.exe)
RPC virtualenv....: rpc-venv (c:/Users/THAY PHACH/AppData/Roaming/.emacs.d/elpy/rpc-venv)
 Python...........: c:/Windows/py.exe 3.9.2 (c:/Windows/py.exe)
 Jedi.............: 0.18.2
 Autopep8.........: 2.0.1
 Yapf.............: 0.32.0
 Black............: 22.12.0
Syntax checker....: flake8.exe (c:/Users/THAY PHACH/AppData/Local/Programs/Python/Python39/Scripts/flake8.exe)

Elpy configuration in my init.el

opened by duksosleepy 0

toml rpv venv dependency is undocumented and causes behaviour change
Summary

The toml module dependency is used to optionally read the line-length and skip-string-normalization options from pyproject.toml. However, reading and applying those optins is contingent on the toml module being installed into the elpy RPV venv, or they are silently skipped.

This can lead to quite confusing behaviour, where two computers which, to elpy-config, appear to have equivalent configs, will have differing behaviour in the wrapping they create when they run black.

We should either make toml a requirement when installing black, or document that the behaviour of elpy-black-fix-code depends on if toml is installed in the venv.

Steps to reproduce

Clean out the RPV venv (rm -rf ~/.emacs.d/elpy/rpc-venv

Install black into the fresh venv

Create a pyproject.toml with:
[tool.black] line-length = 50

Run elpy-black-fix-code on some code, see it use the default 88-character limit

Install toml into the venv

Re-run elpy-black-fix-code, and watch the line-lengths change to pick up the 50-character limit
opened by alexmv 0
Emacs/Elpy freezes on open string
Summary

When I enter a string, starting with a single quote, under some circumstances, this will freeze Emacs, presumably because Elpy freezes or otherwise stalls.

At that point, I can exit emacs with C-g C-g (running in non-window mode), then kill the current process (i.e., emacs) from the command line, but nothing otherwise afaict. Since this is not the normal way to suspend or stop Emacs, I assume it's a running background process that causes Emacs to hang.

Steps to reproduce

I've managed to trace it to the following minimal Python code to open in Emacs:

def main(): text = """Text""" f() g('')

Now, typing a single quote, ', on the empty line above text = ..., at the same indentation, and waiting a second, will cause Emacs to freeze. One way to prevent this seems to be to type '' quickly enough that Elpy doesn't kick in, then fill in the actual string contents. Also, a single double opening quote doesn't cause this either.

I do seem to need the lines with the triple quotes, single function call, and function call with the empty string.

My configuration & OS

I'm running Emacs on macOS 13.0.1, through a Homebrew installation, in iTerm (same issue in Terminal, not surprisingly). My Python interpreter is installed with PyEnv; no idea how relevant this is.

I have tried this on Ubuntu 22.04 as well, but there is no problem there. So it seems to be related to macOS or my specific setup there.

I have seen a few possibly related, but older issues, on freezes (one specifically Macos related), but I can't tell whether that amounts to the same thing. I'm unfortunately too unfamiliar with Emacs and the Emacs package eco-system to be able to debug this further.

Result of (elpy-config)

Emacs.............: 28.2 Elpy..............: 1.35.0 Virtualenv........: None Interactive Python: python3 3.8.14 (/Users/evert/.pyenv/shims/python3) RPC virtualenv....: rpc-venv (/Users/evert/.emacs.d/elpy/rpc-venv) Python...........: python 3.8.14 (/Users/evert/.emacs.d/elpy/rpc-venv/bin/python) Jedi.............: Not found (0.18.2 available) Rope.............: Not found (1.5.1 available) Autopep8.........: Not found (2.0.0 available) Yapf.............: Not found (0.32.0 available) Black............: Not found (22.10.0 available) Syntax checker....: flake8 (/Users/evert/.pyenv/shims/flake8)

Elpy configuration in my init.el

This is the full, minimal, init.el that I need to reproducce this problem.

(require 'package) (add-to-list 'package-archives '("melpa-stable" . "https://stable.melpa.org/packages/")) (custom-set-variables ;; custom-set-variables was added by Custom. ;; If you edit it by hand, you could mess it up, so be careful. ;; Your init file should contain only one such instance. ;; If there is more than one, they won't work right. '(package-selected-packages '(elpy))) (custom-set-faces ;; custom-set-faces was added by Custom. ;; If you edit it by hand, you could mess it up, so be careful. ;; Your init file should contain only one such instance. ;; If there is more than one, they won't work right. ) (package-initialize) (elpy-enable)
opened by evertrol 0