python setup.py install - 已经安装了一个包，为什么还要搜索 pypi 来安装它？

Question

我正在尝试安装 linecache2，它的先决条件是 pbr。

我去了 pypi，并通过下载并运行 setup.py build 安装了 pbr，因为我位于防火墙后面:

    cd   C:\Users\<user_name>\Downloads\pbr-1.5.0\pbr-1.5.0
    python setup.py build

然后我进入linecache，并尝试使用相同的方法安装它:

    cd C:\Users\<user_name>\Downloads\linecache2-1.0.0\linecache2-1.0.0
    python setup.py build

但是，它输出:

Download error on https://pypi.python.org/simple/pbr/: timed out -- Some packages may not be found!
Couldn't find index page for 'pbr' (maybe misspelled?)
Download error on https://pypi.python.org/simple/: timed out -- Some packages may not be found!
No local packages or download links found for pbr
Traceback (most recent call last):
  File "setup.py", line 5, in <module>
    pbr=True)
  File "C:\Python27\lib\distutils\core.py", line 111, in setup
    _setup_distribution = dist = klass(attrs)
  File "C:\Python27\lib\site-packages\setuptools\dist.py", line 268, in __init__
    self.fetch_build_eggs(attrs['setup_requires'])
  File "C:\Python27\lib\site-packages\setuptools\dist.py", line 313, in fetch_build_eggs
    replace_conflicting=True,
  File "C:\Python27\lib\site-packages\pkg_resources\__init__.py", line 830, in resolve
    dist = best[req.key] = env.best_match(req, ws, installer)
  File "C:\Python27\lib\site-packages\pkg_resources\__init__.py", line 1075, in best_match
    return self.obtain(req, installer)
  File "C:\Python27\lib\site-packages\pkg_resources\__init__.py", line 1087, in obtain
    return installer(requirement)
  File "C:\Python27\lib\site-packages\setuptools\dist.py", line 380, in fetch_build_egg
    return cmd.easy_install(req)
  File "C:\Python27\lib\site-packages\setuptools\command\easy_install.py", line 623, in easy_install
    raise DistutilsError(msg)
distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse('pbr')

既然我已经有了pbr，为什么还要去寻找pbr？

非常感谢任何帮助!谢谢!

Answer 1

您刚刚构建了 pbr，您应该安装它:

python setup.py install