This is an error the debugger in PyCharm does not catch but when running the script from the command line or from 'idle', the interpreter catches it.
I put a dummy line in using the setToolTip attribute just ahead of the line that was failing and it worked ok.
I'm a little bumfuzzled. Please help.
# failure occurs here with
# Traceback (most recent call last):
# File "D:\PythonApps\Books_db_utility\walk_dir_tree.py", line 1584, in <module>
# main_window = MainWindow(ini_file=None, _path=path)
# File "D:\PythonApps\Books_db_utility\walk_dir_tree.py", line 126, in __init__
# self.initUi()
# File "D:\PythonApps\Books_db_utility\walk_dir_tree.py", line 209, in initUi
# self.main_tab_widget.setTabVisible(2, True)
# AttributeError: 'QTabWidget' object has no attribute 'setTabVisible'
self.main_tab_widget.setTabVisible(2, True)
self.main_tab_widget.setTabVisible(3, False)
Another question: I would like to include a zip file with this question with the .py files with the code and the on generated with pyuic5. Can I do that?
Thanks,
sherril
Well, it's magic. I was using the PyCharm 2021.2.3 (Community Edition), Python 3.10 interpreter and PyQt5 5.15.6 when I got the exception I mentioned in my original post.
I changed the interpreter to Python 3.8 with PyQt5 5.15.4 and voila it worked like I expected it should.
So, I changed the interpreter back to the Python 3.10 that I was originally using and voila it worked like I expected it should.
Thence, I ran it from the command line (Python 3.8 PyQt5 5.15.2 from an Anaconda3 distribution; this was the interpreter that I "did not" refer to in my original question and bummer it failed again.
So, I replace pyqt5 5.15.2 with 5.15.6 (using pip) in the Anaconda3 distribution's file and voila it worked like I expected it should. (pip may have been a no-no; I suppose I will learn in time.)
I do not intend to reinstall the Pyqt5 5.15.2 in the Anaconda3 unless someone is really interested in was it the version or was something corrupted.
Probably you didn't import correctly the package so it couldn't be found.
Did you import it in the beggining of the code:
from PyQt5.QtWidgets import QMainWindow, QApplication, QPushButton, QWidget, QAction, QTabWidget, QVBoxLayout, QLabel
Reference: https://www.geeksforgeeks.org/pyqt5-qtabwidget/
Here is the documentation: https://doc.qt.io/qt-5/qtabwidget.html
Related
*** 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'm trying to make an vocabtrainer for myself to get better in english, cause I suck. To achieve this, I'm trying to make a GUI with PyQt5 to expand my programming experience too :). But somehow I can't import the QtWebEngineWidget...
This is my code:
import PyQt5.QtWidgets as pyqtW
import PyQt5.QtGui as pyqtG
import PyQt5.QtCore as pyqtC
from PyQt5.QtWebEngineWidgets import *
import sys
class VocabTrainer:
def __init__(self):
self.main = pyqtW.QApplication([])
self.window = pyqtW.QWidget()
self.prepareWindow()
sys.exit(self.main.exec_())
def prepareWindow(self):
"""
Set's the attributes of the window.
"""
# window settings
self.window.resize(250, 100)
self.window.show()
def openPons(self):
"""
Opens the website of pons to be able to translate words.
"""
pass
test = VocabTrainer()
My IDE (PyCharm) warns me that it can't find the reference of PyQt5.QtWebEngineWidgets and if I run this code, I'll get this error message:
Traceback (most recent call last):
File "/A/little/path/VocabTrainer.py", line 12, in <module>
from PyQt5.QtWebEngineWidgets import *
ImportError: libQt5Quick.so.5: cannot open shared object file: No such file or directory
Process finished with exit code 1
I've installed the modules with the following commands:
pip install pyqt5
pip install pyqtwebengine
I've also tried to reinstall the modules but without success.
Python-Version: 3.8.1
OS: Arch Linux
In the case of ArchLinux, having the most up-to-date packages, I generally recommend using the repository packages (IMHO Arch Linux is a good laboratory to test the new functionalities :-)). Considering the above, I recommend installing pyq5 and pyqtwebengine by running the following:
sudo pacman -S python-pyqt5 python-pyqtwebengine
You must also change the python that pycharm uses to the system.
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!
When trying to run a simple test of a database.py:
import pymysql.cursor
from PyQt5.QtCore import pyqtSignal, QObject, QTimer
This the output in the Exceptions tab of WingWare IDE:
File "c:\MyProjects\___MECHANIKOS\UltraSimpleSarlaccPit\01_UltraSimpleSarlaccPit.py", line 1, in <module>
from database import Database
 File "c:\MyProjects\___MECHANIKOS\UltraSimpleSarlaccPit\database.py", line 2, in <module>
from PyQt5.QtCore import pyqtSignal, QObject, QTimer
builtins.ImportError: DLL load failed: The specified module could not be found.`
There was an error when installing PyQt5 that says it was built for 3.5 not 3.4. So is that why?
If so, where can we download a 3.4.3 compatible version?
Thanks!
Regards,
Team Mechanikos
Try upgrading to 3.5:
Uninstall old PyQt5 and Python 3.4.3 through control panel > Programs
Install python 3.5.1, specifying making sure you specify C:\Python35\ as install location.
Install PyQt5 for 3.5 (Current).
Works.
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