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无法导入模块“PyQt4.QtGui”

tag-icon • tag-icon macos python homebrew pyqt
无法导入模块“PyQt4.QtGui”

我使用的是 Mac OS X 10.7.5，按照本文所述，使用“安装自制软件”方法安装了 PyQt 模块关联但是当我通过输入进行测试运行时，from PyQt4.QtGui import *我的终端出现以下错误......

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named PyQt4.QtGui

检查了我的.bashrc文件，内容如下：

BREW_PREFIX=`brew --prefix`

export PATH=$BREW_PREFIX/share/python:$BREW_PREFIX/bin/:$BREW_PREFIX/sbin:$PATH

export PYTHONPATH=$BREW_PREFIX/lib/python2.7/site-packages:$PYTHONPATH

我还缺少什么吗？我真的需要 PyQt4。有人可以指导我吗？另外，因为我正在使用 TextMate，它也能在其中工作吗？

信息来自brew info python:

python: stable 2.7.9, HEAD
https://www.python.org
Not installed
From: https://github.com/Homebrew/homebrew/blob/master/Library/Formula/python.rb
==> Dependencies
Build: pkg-config ✘
Required: openssl ✘
Recommended: readline ✘, sqlite ✘, gdbm ✘
==> Options
--quicktest
    Run `make quicktest` after the build (for devs; may fail)
--universal
    Build a universal binary
--with-brewed-tk
    Use Homebrew's Tk (has optional Cocoa and threads support)
--with-poll
    Enable select.poll, which is not fully implemented on OS X (http://bugs.python.org/issue5154)
--without-gdbm
    Build without gdbm support
--without-readline
    Build without readline support
--without-sqlite
    Build without sqlite support
--HEAD
    Install HEAD version
==> Caveats
Setuptools and pip have been installed. To update them
  pip install --upgrade setuptools
  pip install --upgrade pip

You can install Python packages with
  pip install <package>

They will install into the site-package directory
  /usr/local/lib/python2.7/site-packages

See: https://github.com/Homebrew/homebrew/blob/master/share/doc/homebrew/Homebrew-and-Python.md

答案1

我把这个写成答案是因为注释不适合多行代码块。不能保证能用，因为 OP 似乎对他/她的环境相当困惑。（就我个人而言，我没有一个干净的环境可以玩——我的 brew 和 python 环境已经充满了东西。但我肯定可以pyqt工作了，这是我以前从未安装过的。）

假设你的 brew 安装在 中/usr/local，并且你的 shell 是 bash 或 zsh，请逐步执行以下操作（如果你尚未打开交互式注释，请删除注释）：

> # edit your .bashrc/.zshenv/.zshrc and get rid of your custom PYTHONPATH;
> # brew will take care of that for you
> export PATH=/usr/local/bin:$PATH
> brew install python pyqt
> exec $SHELL -l # shouldn't need this, but why not?

现在运行/usr/local/bin/python并再试from PyQt4.QtGui import *一次。

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