I would like to add pyflow to conda-forge. Therefor dependencies needs to be added first.

• [x] enum: seems to be included in python (python3.7)

• [x] qt.py https://anaconda.org/conda-forge/qt.py

• [x] blinker: https://anaconda.org/conda-forge/blinker

• [x] docutils: https://anaconda.org/conda-forge/docutils

• [x] nine: https://github.com/conda-forge/staged-recipes/pull/8917

• [x] add pyrr: https://github.com/conda-forge/pyrr-feedstock

• [ ] pyflow:

  • [x] needs to have a setup.py https://github.com/IlgarLunin/PyFlow/pull/49
  • [ ] add to pypi: https://github.com/IlgarLunin/PyFlow/issues/13
  • [x] add conda-forge package

Including what the requirements are, how to install them, how to install PyFlow and solve common problems such as QT-Binding etc. That would be awesome! And I would recommend this to people once I am able to run it, this thing looks wonderful :)

Quotes around file name in OS X comman line doesn't work. Popen works better with list of parameters. Found solution here. https://docs.python.org/3.4/library/subprocess.html
17.5.1.2. Popen Constructor

This PR is not tested with Windows.

The Pyflow documentation describes the drop on wire functionality. However, this does not work in the current version. This commit fixes the problem by making additions to the mouseReleaseEvent of the BlueprintCanvas class.

According to the root documents, it seems that you used a "main" console node which accepts CLI input for the program execution (Boxed in red). In this example, your program accepts "lhs" and "rhs" as arguments for your program. I would like to achieve the same effect.

My question specifically is how do you create this "main" node which can accept inputs from CLI. Is this a custom node that you have created? If so would you mind uploading the steps required to create this node? I am unable to find this "main" node within the NodeBox.

Any help would be appreciated, thank you.

Installation issue:

When I try to run the "maya_launcher.py", I get: # Error: TypeError: file line 15: You need a shiboken-based type. #

Can I get some clarification? What am I missing here?

Not very familiar with these modules, so I don't know how basic that might be.

Thanks.

I am unable to use the edit option in the python node. When I click on 'edit', no python editor/console appears. Am I missing some further configuration? All other nodes work properly.

PyFlow version: v2.0.1

clock is deprecated and doesn't exist in Python 3.8 so I get this error.

C:\Users\mtst\Documents\softwares\PyFlow-master
λ pyflow
Traceback (most recent call last):
  File "C:\Users\mtst\Documents\softwares\PyFlow-master\pyflow.py", line 17, in <module>
    from PyFlow.App import PyFlow
  File "C:\Users\mtst\Documents\softwares\PyFlow-master\PyFlow\App.py", line 23, in <module>
    from time import clock
ImportError: cannot import name 'clock' from 'time' (unknown location)

The same issue discussed here: https://github.com/PyTables/PyTables/issues/744

1. I had to click ctrl to show the corresponding menu on right click. Not sure if this is wanted.
2. There is a traceback printed and the collapsed node is missing the pins.

[ERROR 16:37:55]: 'NoneType' object has no attribute 'description'
Traceback (most recent call last):
File "/home/k/projects/PyFlow/PyFlow/App.py", line 352, in mainLoop
self.graphManager.get().Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Core/GraphManager.py", line 141, in Tick
graph.Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Core/GraphBase.py", line 278, in Tick
node.Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 97, in Tick
self.syncPins()
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 71, in syncPins
self.onGraphInputPinCreated(outPin)
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 158, in onGraphInputPinCreated
self.pinExposed.send(subgraphInputPin)
File "/home/k/conda/envs/pyflow3/lib/python3.7/site-packages/blinker/base.py", line 267, in send
for receiver in self.receivers_for(sender)]
File "/home/k/conda/envs/pyflow3/lib/python3.7/site-packages/blinker/base.py", line 267, in 
for receiver in self.receivers_for(sender)]
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UINodeBase.py", line 1386, in _createUIPinWrapper
grpItem = PinGroup(self, rawPin.direction, rawPin.group)
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 434, in __init__
super(PinGroup, self).__init__(owningNode, None)
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 120, in __init__
self.setToolTip(self._rawPin.description)
AttributeError: 'NoneType' object has no attribute 'description'
[ERROR 16:37:55]: 'PinGroup' object has no attribute 'expanded'
Traceback (most recent call last):
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 555, in paint
if not self.expanded:
AttributeError: 'PinGroup' object has no attribute 'expanded'
[ERROR 16:37:55]: 'NoneType' object has no attribute 'description'
Traceback (most recent call last):
File "/home/k/projects/PyFlow/PyFlow/App.py", line 352, in mainLoop
self.graphManager.get().Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Core/GraphManager.py", line 141, in Tick
graph.Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Core/GraphBase.py", line 278, in Tick
node.Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 97, in Tick
self.syncPins()
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 71, in syncPins
self.onGraphInputPinCreated(outPin)
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 158, in onGraphInputPinCreated
self.pinExposed.send(subgraphInputPin)
File "/home/k/conda/envs/pyflow3/lib/python3.7/site-packages/blinker/base.py", line 267, in send
for receiver in self.receivers_for(sender)]
File "/home/k/conda/envs/pyflow3/lib/python3.7/site-packages/blinker/base.py", line 267, in 
for receiver in self.receivers_for(sender)]
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UINodeBase.py", line 1386, in _createUIPinWrapper
grpItem = PinGroup(self, rawPin.direction, rawPin.group)
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 434, in __init__
super(PinGroup, self).__init__(owningNode, None)
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 120, in __init__
self.setToolTip(self._rawPin.description)
AttributeError: 'NoneType' object has no attribute 'description'
[ERROR 16:37:55]: 'PinGroup' object has no attribute 'expanded'
Traceback (most recent call last):
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 555, in paint
if not self.expanded:
AttributeError: 'PinGroup' object has no attribute 'expanded'
[ERROR 16:37:55]: 'NoneType' object has no attribute 'description'
Traceback (most recent call last):
File "/home/k/projects/PyFlow/PyFlow/App.py", line 352, in mainLoop
self.graphManager.get().Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Core/GraphManager.py", line 141, in Tick
graph.Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Core/GraphBase.py", line 278, in Tick
node.Tick(deltaTime)
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 97, in Tick
self.syncPins()
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 80, in syncPins
self.onGraphOutputPinCreated(inPin)
File "/home/k/projects/PyFlow/PyFlow/Packages/PyFlowBase/Nodes/compound.py", line 197, in onGraphOutputPinCreated
self.pinExposed.send(subgraphOutputPin)
File "/home/k/conda/envs/pyflow3/lib/python3.7/site-packages/blinker/base.py", line 267, in send
for receiver in self.receivers_for(sender)]
File "/home/k/conda/envs/pyflow3/lib/python3.7/site-packages/blinker/base.py", line 267, in 
for receiver in self.receivers_for(sender)]
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UINodeBase.py", line 1392, in _createUIPinWrapper
grpItem = PinGroup(self, rawPin.direction, rawPin.group)
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 434, in __init__
super(PinGroup, self).__init__(owningNode, None)
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 120, in __init__
self.setToolTip(self._rawPin.description)
AttributeError: 'NoneType' object has no attribute 'description'
[ERROR 16:37:55]: 'PinGroup' object has no attribute 'expanded'
Traceback (most recent call last):
File "/home/k/projects/PyFlow/PyFlow/UI/Canvas/UIPinBase.py", line 555, in paint
if not self.expanded:
AttributeError: 'PinGroup' object has no attribute 'expanded'

Would it be possible to provide this library in form of a python-package? I am asking because FreeCAD is very interested in this project and people already forking PyFlow, but I guess it would be of more benefit for both project if PyFlow would be provided as a package and can be extended/used by external modules/packages.

Is it possible to run in Jupyter Notebook? I am using libraries that work in Jupyter Notebook to plot some data science results.

Python 3.7.1 on Windows

Command I ran : pyflow

Error I got :

Qt.py [warning]: ImportError(QtCore): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtGui): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtHelp): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtMultimedia): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtNetwork): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtOpenGL): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtPrintSupport): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtSql): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtSvg): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtTest): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtWidgets): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtX11Extras): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtXml): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtXmlPatterns): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Qt.py [warning]: ImportError(QtUiTools): /lib/x86_64-linux-gnu/libgssapi_krb5.so.2: undefined symbol: k5_sname_compare, version krb5_3_MIT
Traceback (most recent call last):
  File "/home/hemang/anaconda3/bin/pyflow", line 5, in <module>
    from PyFlow.Scripts import main
  File "/home/hemang/anaconda3/lib/python3.8/site-packages/PyFlow/Scripts/__init__.py", line 23, in <module>
    from PyFlow.App import PyFlow
  File "/home/hemang/anaconda3/lib/python3.8/site-packages/PyFlow/App.py", line 29, in <module>
    from Qt import QtGui
  File "/home/hemang/anaconda3/lib/python3.8/site-packages/Qt.py", line 1925, in <module>
    _install()
  File "/home/hemang/anaconda3/lib/python3.8/site-packages/Qt.py", line 1903, in _install
    our_submodule = getattr(Qt, name)
AttributeError: partially initialized module 'Qt' has no attribute 'QtGui' (most likely due to a circular import)

https://hjLabs.in

@IlgarLunin, there seems to be some need to keep this wonderful project alive and also some recent momentum to maintain and develop a fork (e.g. here).

Since you mentioned in #106, that you stopped working on it (which is really a pity, because this is some fabulous piece of software!), would you be prepared to pass on the development? I believe, this is always a better choice than to start a fork (with a new name etc ets), which often causes confusion and upgrading problems.

What do you think?

Is there a way to create a property for a node that allows me to set the value of a parameter without needing to create an Input Pin. I really need something that is set once upon construction and doesn't need to be updated again. Having Input Pins makes it unfriendly for the flow based DSL I am trying to create.

Question

Is there a way to install this tool via apt or snap ? It will be really hopful if this tool could be installed without first installing python

Suggetion

I think this will open chances for working with internal python, venv, external servers or docker container or work as a flowchart drawing software - this will be helpful in many cases such as designing APIs it would be one of the best FlowChart editors ever I would recommend you publish it to either apt ppa or snap store

I seek for

A multipurpose visual node editor similer to that used in blender but as a separate software and could be used as a mind mapping, API designing and graph printing/exporting I ended with this repo which is awosome however the fact that its just for python programming I'm not famillier with neither PPAs nor Qt stack but I hope my suggestion would be noticed

notice

When I tried to install it via pip, python 3.8 code complained of circular import via master also did time.clock from release seems this app is need for code review to go with 3.8+

Hello, despite having installed all requirements, I get the following error when running pyflow

qt.qpa.plugin: Could not load the Qt platform plugin "windows" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: direct2d, minimal, offscreen, windows.

What do I have to install?

class PinOptions(Flag):
    ArraySupported = auto() 
    DictSupported = auto()
    Dynamic = auto()

like this, in python2. this time PinOptions.Dynamic.value may is 2, next time may is 4. it caused some serialization and deserialization error.

i am poor in english，can you understand me .