python setup.py install - 已经安装了一个软件包，它为什么要搜索pypi来安装它？

Question

我正在尝试安装linecache2，它具有pbr的先决条件。

我去的PyPI，并通过下载并运行setup.py建立，因为我在防火墙后面安装PBR：

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

然后我去linecache，并试图用同样的方法进行安装：

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

然而，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') 

因为我已经有PBR，为什么它试图去寻找pbr？

任何帮助，非常感谢！谢谢！

Answer 1

刚才生成pbr，你应该安装它：

python setup.py install