How do you fix this error: "ImportError: DLL load failed: The specified module could not be found." using PyQt5

Question

I am currently using Python 3.6.8 and PyQt5. My program was working fine but after a Windows Update, everything stopped working.

Here is the error:

Traceback (most recent call last):
  File "main.py", line 10, in <module>
    from PyQt5 import QtWidgets, QtCore, QtGui
ImportError: DLL load failed: The specified module could not be found.

score 4 · Answer 1 · answered Apr 27 '20 at 17:27

4

I fixed this error by running the following command on my command prompt:

pip install pyqt5-tools

answered Apr 27 '20 at 17:27

burntchowmein

406
3
15

`Because pyqt5-tools (5.15.4.3.0.3) depends on both pyqt5-plugins () and pyqt5-plugins (), pyqt5-tools is forbidden.` Odd – Jonathan Aug 28 '21 at 18:45

score 1 · Accepted Answer · answered Apr 27 '20 at 17:22

1

It looks like the environment variables have become corrupt after the update. In the simplest case, it should just be

Adding your DLL location of python, for example,

(C:\Program Files\Python35\DLLs)

in the path in Environment variables. You can also see some others possible solutions here

answered Apr 27 '20 at 17:22

AzyCrw4282

6,391
5
15
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1

Thank you for your reply. I re-installed everything (using the command in my post below) and now it works. – burntchowmein Apr 27 '20 at 17:29

How do you fix this error: "ImportError: DLL load failed: The specified module could not be found." using PyQt5

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