We Keep Coding

Installing Tkinter to use on Pycharm on a Mac

I just downloaded Pycharm because Spyder on Anaconda wasn't working anymore on my Mac. I am trying use Tkinter and have tried to run code using both
from tkinter import *
and
import tkinter as tk
The second is from my python class. Both times it returns
ImportError: No module named tkinter
I have tried to search for "tkinter" on Python Interpreter but there's no solid "tkinter." Only others like tkinter.math. Please help.

Tkinter would not be visible on Python Interpreter since it is a part of standard Python installation, the only additional modules or packages which user downloads are visible in Settings. Since, Spyder on your PC is not working as well, make sure python is installed properly and is configured correctly with path details properly set up.

I think you should check the interpreter of PyCharm.
Or Reinstall the python package and make a virtual environment.

Using PyQt4 & sip for shared maya script - how to set up modules?

I want to use PyQt4 and sip in a shared maya script. I figured I can't use pip-install because I would only get these modules locally on my machine. I manually extracted these folders into my script directory. I can import both PyQt4 and sip but I can't run any commands from the modules "QtGui, QtCore" and so on. Is it possible to do it this way or do I have to install these modules? If so what is another solution to use PyQt4 in a shared script?
Here are some import scripts I tried:
import sys
from python_modules.sip import *
from python_modules.PyQt4 import *
app = QtGui.QApplication(sys.argv)
Gives error:
'module' object has no attribute 'QApplication'
I Also added _.init._.py to python_libraries, sip & PyQt4 folders.

For every version of maya, there is a page in around the corner explaining how to install PyQt for maya as maya is using a custom python package "mayapy", the install is a bit painfulbut...
around the corner
Also, it has been few versions of maya which embbed PySide, it might be easier than installing PyQt on every machine depending of your privileges.

PyQt is not just a simple python module, but a binding (usually requires to be installed to work as expected).
While theoretically it could be possible to "copy" all the needed files, you would probably always face some issues, expecially if the Qt version doesn't match (possibly for different Maya versions) or different OSs are used.
So, it's better to install PyQt on every machine, maybe using a script.

Pyinstaller on Msys2 with pygobject

I have been building an application on Linux using python pygobject, and now I need to distribute it on Windows.
I first installed pygobject via msys2 (as per the official pygobject documentation)
Now, using msys2/mingw32, I can run my program typing
python3 main.py
But when I try to freeze it into a .exe with Pyinstaller, and try to run the produced .exe
If I Don't use --onefile, I get an import error on the _struct module (whereas "import _struct" works in python shell)
If I use --onefile, I get the Following error :
error:
lib/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-ani.dll could not be extracted!
fopen: No such file or directory
I’m using the devel version of Pyinstaller. I know next to nothing on Windows OS… does anyone know how to fix that error ?

It sounds like you were on the right path, unfortunately you ran in to a bug in PyInstaller. The good news is that the issue with the No module named '_struct' error is now fixed and released in version 3.6 and later. I would recommend using the --onedir mode of PyInstaller, you should be able to successfully package a GTK app for Windows.

Error in using PyQt4 with python 3.5.2 for running a PyMoskito example

I'm trying to get an example of PyMoskito running under Python 3.5.2 Win7 64 bit
This library needs PyQt4 which in turn needs SIP.
1- I installed SIP using pip3 install SIP which ended up successfully (with a notice to update my pip).
2- I even barely know Python. So I tried installing PyQt4 with a binary executable. The binaries provided at riverbankcomputing.com/software/pyqt/download are for python 3.4 so I downloaded an unofficial wheel from http://www.lfd.uci.edu/~gohlke/pythonlibs/#pyqt4 with a name PyQt4-4.11.4-cp35-none-win_amd64.whl. Then I cd'ed into the respective directory and installed it with pip which ended up successfully.
Now, I don't know what is the standard procedure for testing if a library is working. So I ran setup.py from the main directory of library and I assumed it set things up. Then I ran an example from examples folder and I get this error
Traceback (most recent call last):
File "C:\Users\****\Documents\Python Libraries\pymoskito-master\pymoskito-master\examples\ballbeam\main.py", line 3, in <module>
from PyQt4 import QtGui, QtCore
ImportError: DLL load failed: The specified module could not be found.
I assume python could NOT find the PyQt4 dependencies. I searched stackoverflow and non of the solutions worked. Here is what I tried so far:
There is NO /bin directory in C:\Python35\Lib\site-packages\PyQt4. So all dlls are already in the \PyQt4 directory
I added this directory to System PATH env. var. Same error occurs
I appended this directory to sys.path and tested it. Same error occurs
I created a \bin directory and copied all \PyQt4 into it. Then added it to PATH. Same error occurs
After that, I installed python 2.7 and PyQt4 from riverbankcomputing but not SIP. I still have the same problem
I really don't know what else should I do. I'm actually frustrated by all the mentioning of whether OP is using Python 2 or Python 3 or QT4 or QT5 or x86 or x64. I believe backward compatibility should be the minimum of a programming language and this is definitely a mess for Python

The short answer, I believe is that you have pyqt4 (a python interface to the qt4 library), sip (an automated c++-to-python communication library) but not qt4 itself (the UI library). qt4 is it's own monolithic c++ project with its own build and dependency problems.
You may be able to find the various pieces at http://www.lfd.uci.edu/~gohlke , but I would recommend installing the Anaconda distribution of python ( https://www.continuum.io/downloads ), which provides binary packages for things like qt4 and pyqtgraph, the former of which is installed by default, the latter requiring a command like
conda install pyqtgraph
After this, pip install of pymoskito should work.
There is also mention in the readme of vtk, but it is not in the requirememnts. vtk is also a monolithic c++ library and hard to build, but conda has that too, albeit not in the default channel for py35:
conda install vtk -c menpo

Setting up IPython Qtconsole with PyQt5

On an OSX 10.9, I have Qt5 installed. Later I installed Ipython, sip and PyQt5 all build from source. Now here is the problem: when I try to run ipython qtconsole, I have a bunch of errors related to the files in this directory (and its subfolders)
/Library/Python/2.7/site-packages/IPython/
followed by
ImportError:
Could not load requested Qt binding. Please ensure that
PyQt4 >= 4.7 or PySide >= 1.0.3 is available,
and only one is imported per session.
Currently-imported Qt library: None
PyQt4 installed: False
PySide >= 1.0.3 installed: False
Tried to load: ['pyside', 'pyqt']
I assume the problem is that I have PyQt5 instead of PyQt4. Is this the problem or I have missed some thing else?
Is there anyway that I can have qtconsole with PyQt5? If no, what is the easiest way to do so? (preferably, a method that does not involve having two versions of Qt library on one machine).
For sake of brevity I skipped posting the full error message. Please let me know if I should add them from better understanding of the situation.

The problem might be related to your python path.
I had almost the exact same problem. I had installed PyQt using Homebrew and I was getting the same error message. Finally what solved the problem was adding the following line to my .bash_profile:
export PYTHONPATH=/usr/local/lib/python2.7/site-packages:$PYTHONPATH
Since I am a beginner myself, I can't help you any further but I hope this solves the problem.

I know this is really old, but I was recently having trouble setting up PyQt5.
The problem was that PyQt5 would install, but some of the sub modules would not. For instance try
import PyQt5 #works
from PyQt5 import * # might fail
If the second command fails, then you have a problem with the PyQt5 setup, and you need to focus on that.
Specifically, ipython+qt will try to import the following
from PyQt5 import QtCore, QtSvg, QtWidgets, QtGui
If any of these sub-modules are broken/missing the qt console launch will quietly fail.
For me it turned out that the PyQt5 installer was failing to make the QtSvg bindings, which ipython tries to load from PyQt5. When you run the configure.py, use the -w option and you will see all the details of the build, allowing you to pinpoint where the install is failing.
In my case, a little googling and I found out that I was missing the QtSvg lib, which can be pulled in easily from the repos.

Setting environment variable QT_API=pyqt5 solved the same problem for me.

I had the same problem, though with the most recent brew of ipython the ImportError included PyQt5 (along with PyQt4 and PySide). So if it didn't work with PyQt5 before, it does now.
Adding the correct PYTHONPATH to .bash_profile fixed it for me, even in my virtualenv. (I don't have the reputation to up-vote or comment on oxtay's answer, where this would be more appropriate...)