python - ipython 不会在 Windows 上运行

Question

通过在 Windows 上安装 ipython 后pip install ipython，我无法运行它并收到以下错误。

> ipython
Traceback (most recent call last):
  File "C:\Python27\scripts\ipython-script.py", line 5, in <module>
    from pkg_resources import load_entry_point
  File "C:\Python27\lib\site-packages\pkg_resources.py", line 2607, in <module>
    parse_requirements(__requires__), Environment()
  File "C:\Python27\lib\site-packages\pkg_resources.py", line 565, in resolve
    raise DistributionNotFound(req)  # XXX put more info here
pkg_resources.DistributionNotFound: pyreadline>=1.7.1

pyreadline 在 ipython 通过 pip 时安装，但pip freeze显示有关 SVN 位置的警告

> pip freeze
Warning: cannot find svn location for pyreadline==1.7.1.dev-r0
...
ipython==0.13.1
## FIXME: could not find svn URL in dependency_links for this package:
pyreadline==1.7.1.dev-r0
...

Answer 1

解决方案是卸载安装 ipython 时拉取的 pyreadline 版本（ ）并从http://www.lfd.uci.edu/~gohlke/pythonlibs/#pyreadlinepip uninstall pyreadline下载并安装pyreadline-1.7.1.win32-py2.7.‌exe