来自virtualenv中'pip list'的断言错误.

Question

点子列表抛出一个断言错误,我不知道如何解决.这是在从源代码构建2个软件包(PyUblas-2013.1和boost_1_54_0)之后发生的.我正在使用virtualenv.

错误如下;

(virtenv)[user@xyz ~]$ pip list
beautifulsoup4 (4.2.1)
biopython (1.61)
distribute (0.6.35)
methylpy (0.1.0)
MySQL-python (1.2.4)
numpy (1.7.1)
pip (1.4)
py (1.4.15)
pytest (2.3.5)
PyUblas (2013.1)
Exception:
Traceback (most recent call last):
  File "/home/user/virtenv/lib/python2.7/site-packages/pip/basecommand.py", line 134, in main
    status = self.run(options, args)
  File "/home/user/virtenv/lib/python2.7/site-packages/pip/commands/list.py", line 80, in run
    self.run_listing(options)
  File "/home/user/virtenv/lib/python2.7/site-packages/pip/commands/list.py", line 127, in run_listing
    self.output_package_listing(installed_packages)
  File "/home/user/virtenv/lib/python2.7/site-packages/pip/commands/list.py", line 136, in output_package_listing
    if dist_is_editable(dist):
  File "/home/user/virtenv/lib/python2.7/site-packages/pip/util.py", line 347, in dist_is_editable
    req = FrozenRequirement.from_dist(dist, [])
  File "/home/user/virtenv/lib/python2.7/site-packages/pip/__init__.py", line 194, in from_dist
    assert len(specs) == 1 and specs[0][0] == '=='
AssertionError

任何人都可以帮我排除故障???

谢谢,

Answer 1

我认为这是因为分发包已经过时了.当然以下为我修好了:

pip install --upgrade distribute

Answer 2

你的点子可能已经过时了.即使在Ubuntu 14.04 LTS中,它使用的pip版本apt-get install python-pip是1.5.4.尝试手动更新pip,也可以再次更新新的包.

pip --version # 1.5.4
curl -O https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.py
pip --version # 6.0.8

https://pip.pypa.io/en/latest/installing.html