Where does ActivePython install pyqt4? - python

I am currently using a Windows XP machine (32 bit). I am new to Scribus, and have enjoyed using it over the other expensive program for desktop publishing. In Scribus I have a prewritten script I would like to run. The beginning of the script contains:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from PyQt4.QtCore import *
from PyQt4.QtGui import *
class DockDialog(QDockWidget):
I have installed Python 3.2 via ActivePython (after trying to install from python.org). After the install I then opened a DOS window and typed pypm install pyqt4, which, as far as I could tell installed properly. I then tried to run the script in Scribus and received the following message:
Traceback (most recent call last):
File "<string>", line 8, in ?
File "C:/Program Files/Scribus 1.3.3.14/share/scripts/Scribus-DockWidgets/DockWidgets.py", line 4, in ?
from PyQt4.QtCore import *
ImportError: No module named PyQt4.QtCore
I then tried reinstalling PYQT4, by typing what I had before, and I was told that PYQT4 was already installed via:
skipping "pyqt4" already installed at "%APPDATA%\Python" (3.2)
After looking in c:\Python32 in all of the directories I can not find any PYQT files. Where were they installed? How do I make sure that script is able to fing the PYQT4 files necessary to run?
My PATH variable is:
C:\Python32\;C:\Python32\Scripts;
Ultimately I would like help in getting the scribus script to work.
Thank you for your help!

Type this command to see where PyQt is installed:
pypm files --full-path pyqt4
By default, PyPM installs packages into your %APPDATA%\Python directory. If you want to install globally into C:\Python32 use the -g option (like: pypm -g install pyqt4)
How do I make sure that script is able to fing the PYQT4 files necessary to run
Are you sure that you are invoking Python 3.2? Try running pypm -g install pyqt4 if all else fails.

Related

ModuleNotFoundError: No module named 'PySide6' in Python using Visual Studio Code

*** Update ***
This issue was solved by whiteroom in the comments section. The issue was that the Python Interpreter setting needed to be changed to point to the correct one. The whiteroom question answer was also very helpful.
*** Original Question ***
I installed PySide6 on my MacBook and confirmed that it is installed as shown in the attached screen shot. I'm also very new to Python and using the Mac Terminal app.
pip3 install PySide6
I tried to run this simple app from the Visual Studio Code editor.
from PySide6.QtWidgets import QApplication,QLabel
app = QApplication([])
label = QLabel('hello world')
label.show()
app.exec()
Python responded with this error:
Traceback (most recent call last):
File "/Users/emad-ud-deen/Development/Python/Practice/PySide6 Test.py", line 1, in <module>
from PySide6.QtWidgets import QApplication,QLabel
ModuleNotFoundError: No module named 'PySide6'
The only way I'm able to run the apps I write with PySide6 without that error is from the command line in Terminal.
Can you tell me how to get Visual Studio Code to recognise PySide6?
I have the same question with you, but I've just found a solution:
You can use command like this:
pip uninstall pyside6-addons
pip uninstall pyside6-essentials
pip uninstall pyside6
pip install pyside6-essentials
Actually, if you don't want to use so difficult plugins, just install PySide6-Essentials[1] is benefit for you :)
References:
[1] https://www.qt.io/blog/qt-for-python-details-on-the-new-6.3-release
you can simply fix this problem by just changing the current version of your python to 3.8.10 from the down-right corner

I can`t import wxpython in anywhere except python console

I installed python 3.8.8 and installed wxpython using pip at terminal
pip install wxpython
and i run simple program
import wx
print(wx.version())
in pycharm and pycharm`s python console, I got
ModuleNotFoundError: No module named 'wx'
in IDLE, I got
Traceback (most recent call last):
File "C:/Users/tasoo/OneDrive/Desktop/wx.py", line 1, in <module>
import wx
File "C:/Users/tasoo/OneDrive/Desktop\wx.py", line 2, in <module>
print(wx.version())
AttributeError: partially initialized module 'wx' has no attribute 'version' (most likely due to a circular import)
in python.exe code works
I want to import wx in pycharm project.
I tried add python in system path but it didn`t work.
You have problem because you saved code in file wx.py and now import wx loads your file wx.py instead of module wx. Rename your file - ie. main.py instead of wx.py
PyCharm may have own Python installed and it may need to install wx in this Python.
Check
import sys
print(sys.executable)
to get full path to Python used by PyCharm and then use this path
/full/path/to/python -m pip install wx
Or search in PyCharm settings (in menu File) and change Python Interpreter.
In PyCharm for every project you may set different Python - if you have installed many versions.

Runtime error when calling a .exe made with PyInstaller including PyQt4

So, I have two .py files, one generated by QtDesigner and another which basically implements the functionality of the GUI. Using, pyinstaller, I generated a .exe file to use it on systems without python and the associated libraries.
The command: pyinstaller my_script.py runs fine without any errors.
The problem occurs when I run the .exe file.
Error:
Qt: Untested Windows version 10.0 detected!
Traceback (most recent call last):
File "site-packages\PyInstaller\loader\rthooks\pyi_rth_qt4plugins.py", line 41, in
ImportError: No module named 'PySide'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "site-packages\PyInstaller\loader\rthooks\pyi_rth_qt4plugins.py", line 43, in
File "", line 2237, in _find_and_load
File "", line 2226, in _find_and_load_unlocked
File "", line 1191, in _load_unlocked
File "", line 1161, in _load_backward_compatible
File "C:\python\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 714, in load_module
module = loader.load_module(fullname)
RuntimeError: the PyQt4.QtCore and PyQt5.QtCore modules both wrap the QObject class
[11364] Failed to execute script pyi_rth_qt4plugins
So I tried to find a solution to this. These are the solutions I tried:
How to force PyQt5 use for QObject class? - simply make the PyQt import as the first statement doesn't resolve the issue.
https://github.com/tzutalin/labelImg/issues/268 - Here it is recommended to remove PyQt4 and use only PyQt5. I do have both of them on my system, some projects rely on PyQt5 and some on PyQt4 hence I don't want remove the latter. Also, there has to be another solution, is making me not do this.
https://intellij-support.jetbrains.com/hc/en-us/community/posts/115000551170-PyQt4-and-PyQt5-collisions-in-PyCharm-2017-2-1-when-debugging-QGIS-application - This was a similar error, so I added:
matplotlib.rcParams['backend'] = 'Qt4Agg'
matplotlib.rcParams['backend.qt4'] = 'PyQt4'
to my imports, still didn't work.
Note:
I am using:
PyCharm 2018.1 (Community Edition)
Build #PC-181.4203.547, built on March 26, 2018
JRE: 1.8.0_152-release-1136-b20 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0
and the code works fine in the IDE.
EDIT:
My imports are:
from PyQt4 import QtCore, QtGui
from matplotlib.backends.backend_qt4agg import FigureCanvasQTagg as Canvas
I am not adding any other import statements related to Qt.
EDIT - 2:
Trying cx_Freeze instead of PyInstaller, here is the setup file.
import sys
from cx_Freeze import setup, Executable
base = None
if sys.platform == "win32":
base = "Win32GUI"
additional_mods = ['numpy.core._methods', 'numpy.lib.format',
'numpy._distributor_init']
setup( name="ASCII2fig",
version = "0.1",
description = "GUI",
options = {'build_exe': {'includes': additional_mods}},
executables = [Executable("ASCII2figALL_main_edited.py", base=base)])
I added the additional_mods after executing the script once following ImportError, which are non-stop. Any ways to hack and find which libraries I should mention explicitly?
Additionally, I also tried to check which libraries are actually being imported when I run my main script with Qt using:
from modulefinder import ModuleFinder
filename = "ASCII2figALL_main_edited.py"
finder = ModuleFinder()
finder.run_script(filename)
for name, mod in finder.modules.items():
print(name)
and apparently, it is importing PyQt5 internally. As mentioned before, I have NO import statements mentioning PyQt5.
Edit - 3
So, I changed the code to pure PyQt5, updated the pyinstaller to the latest version - 3.4, and now there is a new issue where it doesn't find the Qt plugins. It is still somehow importing PyQt4 and I don't know where.
So, I finally made it to work. Not the ideal case, where I don't have to change the library to PyQt5 and make sure everything is in order with PyInstaller, but it works. So here is what I did:
Installed Python version 3.5 - This was because after I updated to the latest PyInstaller version (3.4) and tried to run on python 3.4, I was getting a new error where it was not able to find Qt plugins. After some searching, I figured that since I installed PyQt5 on Python version (3.4) using a .whl file I found on Python Extension Packages for Windows, the installation didn't come bundled with sip. Additionally, when I tried to install PyQt5 on Python 3.4 using pip, it wouldn't install.
Installed PyQt5 and all other libraries on the new Python version using pip. Note: This version of python doesn't have a PyQt4 installed, so it is quite possible that this was the reason. I will install PyQt4 on this python version and try making the .exe again using PyInstaller and see what happens.
So, to summarize, PyQt5 + Pyinstaller works only for Python version >= 3.5. Hope it helps others!

wxPython import error with Windows install

I have installed Python 3.4 and wxPython Phoenix on Windows 10. I go into Eclipse and add wxPython to the external libs in my project, but when I try to import it, I get this error:
Traceback (most recent call last):
File "C:\Users\linus\workspace\MiCS 1.2\main.py", line 1, in <module>
import wx
File "C:\Python34\Lib\site-packages\wx\__init__.py", line 17, in <module>
from wx.core import *
File "C:\Python34\Lib\site-packages\wx\core.py", line 6, in <module>
from ._core import *
ImportError: DLL load failed: The specified module could not be found.
I did some searching and tinkering and still can't figure out what's causing it. It shouldn't be the msvcp or msvcr DLLs as I have Office running just fine (or is that an incorrect assumption?) Any help is appreciated. Thanks.
How did you install wxpython?
As of now, the top page of the official site has wxpython 3.0 only for python27. So, I suspect you might not have installed it properly.
If you have your python34 at C:/Python34 then, cd to C:/Python34/Scripts first so that we make sure to use the pip for this python.
According to this post (https://groups.google.com/forum/#!topic/wxpython-dev/LmGIrQyh7jc), try
pip install -U --pre -f http://wxpython.org/Phoenix/snapshot-builds/ wxPython_Phoenix
This should find the corresponding whl file for your python version and CPU architecture.
Or, you could manually download whl file at http://wxpython.org/Phoenix/snapshot-builds/
If you have 32 bit Python34, then look for ******-cp34-none-win32.whl
and simply do:
pip install path/to/the/whl/that/you/just/downloaded/wxPython_Phoenix-3.0.3.dev1839+4ecd949-cp34-none-win32.whl
After this, if you can import wx in the normal cmd then the problem should be coming from eclipse.

Pyqtgraph error when running built in examples

I'm trying to work out how to use pyqtgraph so that I can use it.
I've tried to run this block of code which I found on the pyqtgraph website
import pyqtgraph.examples
pyqtgraph.examples.run()
But it always throws this error
Traceback (most recent call last):
File "/Users/willemhandreck/Code/Misc.Projects/heater_alert/python/plotly_test.py", line 1, in <module>
import pyqtgraph.examples
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pyqtgraph/__init__.py", line 13, in <module>
from .Qt import QtGui
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pyqtgraph/Qt.py", line 35, in <module>
from PySide import QtGui, QtCore, QtOpenGL, QtSvg
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PySide/QtGui.so, 2): Library not loaded: libpyside-python2.7.1.2.dylib
Referenced from: /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PySide/QtGui.so
Reason: image not found
How would I fix this?
Yep, same problem here if I try to use the built-in python on the mac.
My solution is to use the anaconda python distribution:
1) Download & install Anaconda python, which already has all the right scientific modules installed. http://continuum.io/downloads#all
2) Restart your terminal and ensure you have anaconda as your python:
$ which python
/Users/caleb/anaconda/bin/python
3) Then install pyqtgraph:
$ pip install pyqtgraph
...
Successfully installed pyqtgraph-0.9.10
4) Run the examples from the command line:
$ python -m pyqtgraph.examples
or use your import... run method above.
-Caleb
This is actually a good thing.
The system python ships installed and configured to run system utilities. It's a good idea to have a separate playpen for special packages, tweaks, upgrades, experiments.
Anaconda makes it autoeasy by containing itself and its packages all within its own directory and prevents messing up anything else.
http://www.reddit.com/r/Python/comments/39qeq6/anaconda_pros_cons_mac_os_x/cs5mxwk

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