Question

我查看了this，并尝试了以下代码：

ln -s /usr/lib/python2.7/dist-packages/pygtk.pth tools/python_2_7_9/lib/python2.7/site-packages/
ln -s /usr/lib/python2.7/dist-packages/gobject tools/python_2_7_9/lib/python2.7/site-packages/
ln -s /usr/lib/python2.7/dist-packages/gtk-2.0 tools/python_2_7_9/lib/python2.7/site-packages/
ln -s /usr/lib/python2.7/dist-packages/pygtk.pth tools/python_2_7_9/lib/python2.7/site-packages/
ln -s /usr/lib/python2.7/dist-packages/glib tools/python_2_7_9/lib/python2.7/site-packages/
ln -s /usr/lib/python2.7/dist-packages/gi tools/python_2_7_9/lib/python2.7/site-packages/
ln -s /usr/lib/python2.7/dist-packages/pygtkcompat tools/python_2_7_9/lib/python2.7/site-packages/

，但import glib或import gi仍会产生错误：

yba@ubuntu:~/Documents/XXX/tools$ source python_2_7_9/bin/activate
(python_2_7_9) yba@ubuntu:~/Documents/XXX/tools$ python
Python 2.7.9 (default, Aug 29 2016, 16:04:36) 
[GCC 4.8.4] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import glib
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/yba/Documents/XXX/tools/python_2_7_9/lib/python2.7/dist-packages/glib/__init__.py", line 22, in <module>
    from glib._glib import *
ImportError: /home/yba/Documents/XXX/tools/python_2_7_9/lib/python2.7/dist-packages/glib/_glib.so: undefined symbol: PyUnicodeUCS4_DecodeUTF8
>>> import gi
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/yba/Documents/XXX/tools/python_2_7_9/lib/python2.7/dist-packages/gi/__init__.py", line 36, in <module>
    from ._gi import _gobject
ImportError: /home/yba/Documents/lucida/tools/python_2_7_9/lib/python2.7/dist-packages/gi/_gi.so: undefined symbol: PyUnicodeUCS4_FromUnicode
>>>

与该帖子类似，系统范围的python工作正常：

yba@ubuntu:~$ python
Python 2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import gi
>>> import glib
>>>

如何解决这个问题？另外，我真正需要的是import gi.repository而不是import gi。非常感谢！

Answer 1

您需要在虚拟环境中安装必要的模块。

激活后，您必须pip install <library name>。在您的情况下，它应该是pip install gi

Answer 2

首先，请记住，虚拟环境（2.7.9）使用的Python与系统范围的Python（2.7.6）不同，所以我没有看到制作一个他们之间的比较。

您可以做的一件事是从头开始创建虚拟环境，但使用-p标志来指示应使用哪个Python版本。像这样：

virtualenv -p /usr/bin/python2.7 <virtualenv/new/path/>

其次，使用2.7.9版本报告的undefined symbol: PyUnicodeUCS4_FromUnicode错误可能与Python源的不正确编译有关。请尝试重新编译它们，但要注意--enable-unicode=ucs4行中的./configure选项：

$> tar -xf Python-2.7.6.tar
$> cd Python-2.7.6
$> ./configure --prefix=/usr/local --enable-shared --enable-unicode=ucs4
$> make && make altinstall

如何在虚拟环境中安装python“gi”模块？

2 个答案: