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I am using Windows 7, 64 bit version.

I am trying to implement Visbrain.

below is my situation.

I am using Python 3.6. It is in my D.

I run below comment

pip install visbrain

It worked successfully.

I have a python script with only 1 line, which is

from PyQt5 import QtWidgets

but it pops out this error when i run it

Traceback (most recent call last):
  File "C:\Users\JamesTan\Desktop\test12.py", line 1, in <module>
    from PyQt5 import QtWidgets
ImportError: DLL load failed: The specified procedure could not be found.

Tried Solution :

  1. I check the contents in \Lib\site-packages. and see PyQT5 folder is inside.

  2. Tried to pip install PyQt5 but it told me that requirement already satisfied

  3. Checked my PATH variable. It currently contains D:\Python36;D:\Python36\Scripts

I tried to include D:\Python36\Lib and D:\Python36\Lib\site-packages but it still pops up this error.

5) According to comment in this stackoverflow link : DLL load failed when importing PyQt5

5.1) i had python3.dll in my python.

6) tried to uninstall pyqt5 and install back, still appear this error.

Would like to know how to solve this issue ? Thank You.

===

Solution

According to this chinese link : https://blog.csdn.net/qq_41185868/article/details/80903095

it said that Incompatibilities with pyqt5 version and SIP version. and it said that if sip version is 4.19.8, PyQt5 version have to be 5.10.1.

I tried to update sip to latest version by pip install --upgrade sip, so that my sip version is 4.19.8.

I tried was uninstalled PyQt5 by pip uninstall pyqt5, and installed 5.10.1 version by pip install pyqt5==5.10.1

STREETKILLER007
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