导入错误：没有名为 PyQT5 的模块 (Win7x64)

Question

I would like to create small user interface to my Python temp logger and PyQT came highly recommended, but I can't get it to work on Win7 Ultimate x64, SP1. I read how to ask good questions - I know, Windows...

I installed Python 3.4.3 using the python-3.4.3.amd64.msi, downloaded from Python.org - it works.

Then I installed PyQT5 using the Windows 64 bit installer from riverbankcomputing.com: PyQt5-5.5.1-gpl-Py3.4-Qt5.5.1-x64.exe

I think this is all I need to do to be able to import PyQT5 in Python. However, python does not see PyQT5. From the python prompt I type:

>>> import sys
>>> import PyQT5
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    import PyQT5
ImportError: No module named 'PyQT5'

I researched the error, but most of the answers are for building PyQT5 from the binaries and for the Linux environment. Some answers suggest adding PyQT5 to the path. I tried adding various directories to Python path, but did not see any improvement.

My windows system path is:

C:\\Python34\\Lib\\site-packages\\PyQt5;%SystemRoot%\\system32;%SystemRoot%;%SystemRoot%\\System32\\Wbem;%SYSTEMROOT%\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Windows Kits\\8.0\\Windows Performance Toolkit\\;C:\\Program Files\\Microsoft SQL Server\\110\\Tools\\Binn\\;C:\\Program Files\\TortoiseSVN\\bin;C:\\Program Files (x86)\\Common Files\\Rockwell\\;C:\\Program Files (x86)\\Rockwell Automation\\Common\\Components;C:\\Program Files (x86)\\Brackets\\command

My python sys.path is:

>>> sys.path
['', 'C:\\Python34\\Lib\\idlelib', 'C:\\Windows\\system32\\python34.zip', 'C:\\Python34\\DLLs', 'C:\\Python34\\lib', 'C:\\Python34', 'C:\\Python34\\lib\\site-packages', 'C:\\python34\\lib\\site-packages\\PyQT5']

I uninstalled everything and re-installled with python 3.4.0, in case there is something in the later maintenance versions that causes incompatibility. Same problem. I uninstalled again and re-installed the 32 bit versions, same problem. I installed everything on another Win7x64 machine, same problem.

What am I doing wrong? (besides using Windows?)

I never built anything from binaries, but I tried following the directions. But the official SIP directions do not include downloading QT. some answers here say you do have to do that before running SIP configure...

Answer 1

Try import PyQt5 rather than PyQT5 . If that fails as well, try from PyQt5 import * & from PyQT5 import * . Thanks!