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Can't import PyQt5.QtWebEngineWidgets

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.

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!

How can I use PyQt 4.x in Python 3.4?

I'd like to know how I can use PyQt 4.x in Python 3.4.4 on Windows XP(32bit).
I tried installing PyQt4-4.11.3-gpl-Py3.4-Qt4.8.6-x32.exe from this page.
I can command import PyQt4 and it doesn't show any error, but I can't import or use anything else. For example,
from PyQt4.QtGui import *
from PyQt4.QAxContainer import *
from PyQt4.QtCore import *
engenders only ImportError: DLL load failed: The specified module could not be found error.
Is Python 3.4.4 not compatible to PyQt4-4.11.3? I hope to get some help with it.

PyQt4 x64 is not importing from network location

I want to use PyQt4 from a network location.
I installed Python 2.6.4 x32 in a client and kept PyQt4 x32 module in a network share (for Ex: "\share\Pyton_Modules\x32").
when opened python i did as below and it worked
import sys
sys.path.append(r'\\share\Pyton_Modules\x32')
from PyQt4 import QtGui
everything worked fine.
But i tested the same way for python 2.6.4 x64 in a client and keeping PyQt4 x64 in a network share (for Ex : "\share\Pyton_Modules\x64")
when opened python i did as below and it didn't worked
import sys
sys.path.append(r'\\share\Pyton_Modules\x64')
from PyQt4 import QtGui
i get below error
Traceback (most recent call last):
File "<pyshell#4>", line 1, in <module>
from PyQt4 import QtGui
ImportError: DLL load failed: The specified module could not be found.

I found a solution to overcome my situation.
I moved all the files from PyQt4\bin to PyQt4 and it worked without any issue...
Hope this could help someone.

Python: from import error

I'm running Python 2.6.6 on Ubuntu 10.10.
I understand that we can import a module and bind that module to a different name, e.g.
import spam as eggs
also,
from eggs import spam as foo
My problem is that when running the PySide examples, the following import code does not run:
import PySide as PyQt4
from PyQt4 import QtCore, QtGui
It generates an import error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named PyQt4
Clearly, according to the Python interpreter the above code is incorrect, my question is why is it incorrect or rather why doesn't this work?

import and from are a special syntax.
They look for a module name, which means a file in sys.path which starts with the module name.
And it seems like you don't have PyQt4 installed, so it will fail.
The fact that you have a variable called PyQt4 in your namespace after running import PySide as PyQt4 does not change anything, Python is still looking for an actual module called PyQt4 when you do from PyQt4 import QtCore, QtGui.
Try doing
import PySide as PyQt4
QtCore = PyQt4.QtCore
QtGui = PyQt4.QtGui
or
import PySide as PyQt4
from PySide import QtCore, QtGui
That should be equivalent.

I just installed PySide and was doing a tutorial where all the examples used PyQt4. I got tired of changing the imports from PyQt4 to PySide so I just made a symlink in my site-packages, using the following steps:
1) There's surely a better way but I found where my python packages were installed by opening a shell and running python, then at the interactive interpreter typed:
>>> import sys
>>> print sys.path
2) I then found PySide in one of the directories and cd'd to it (n.b. It's at /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages if you're using the macports PySide install for python 2.7 on Mac OSX Leopard 10.5.8).
3) Then I made a symlink with ln, in my case I had to use sudo:
sudo ln -s PySide PyQt4
That's it, now I can just use:
from PyQt4 import QtGui
as normal - happy days!
Obviously, if you ever want to install PyQt4 you should rm the PyQt4 symlink first.
Another caveat: What I've described above may well be wrong/bad in many ways - I am no expert at Python installs but so far it's ok for me. YMMV so use at your own risk. Hopefully someone will comment soon to say "no, very bad!" or ideally "yeah don't sweat it, we cool.."