PyQt4导入错误

Question

I have downloaded PyQt4 and have been able to use it without any issues in Idle. However, when I am trying to execute a command in terminal, I am receiving the error

ImportError: No module named PyQt4

The code I ran is the following:

User-MacBook-Pro:Python $ which python
/Library/Frameworks/Python.framework/Versions/2.7/bin/python
User-MacBook-Pro:Python $ pyuic4 Print.ui>Print_ui.py
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PyQt4/uic/pyuic.py", line 26, in <module>
    from PyQt4 import QtCore
ImportError: No module named PyQt4

I would love to get some guidance on this issue.

Thank you

Answer 1

I have solved the same problems, I find that the problem is in file 'pyuic4'. The wrong version python was setted.

You can run code-- which pyuic4 --to find where is the pyuic4, and then open this file by texteditor(eg.Sublime Text). After that, you will find one row code in this file:

#!/bin/sh
exec pythonw2.7 //anaconda/lib/python2.7/site-packages/PyQt4/uic/pyuic.py ${1+"$@"}

So, the function of pyuic4 is to call pythonw2.7 and run pyuic.py .

In my computer, I have installed anaconda so the PyQt4 file is stored in anaconda PATH, but pythonw2.7 will use the Apple supplid Python. Under the circumstance, pythonw2.7 can't import the module PyQt4. Changing it to pythonw which belongs to anaconda will solve the problem.

In your problem, I think you can check out the python version, and change the default version of pythonw in pyuic.py to right version.

Just use pythonw to run the following file:

/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PyQt4/uic/pyuic.py

If the return result is:

Error: one input ui-file must be specified

rather than:

Traceback (most recent call last):
  File "//anaconda/lib/python2.7/site-packages/PyQt4/uic/pyuic.py", line 26, in <module>
    from PyQt4 import QtCore
ImportError: No module named PyQt4

the pythonw is the right version.