pipが壊れています。 v9.0.1がインストールされていますが、setuptoolsが必要です8.1.1

Question

最近の変更はありませんでしたが、最近の変更はありませんでした。 setuptoolsには8.1.1が必要だが、9.0.1がインストールされているということを除いて、setuptoolsまたはdowngrade pipはアップグレードできません。 [install_pip（https://pip.pypa.io/en/stable/installing/）：

$ pip 
Traceback (most recent call last): 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 659, in _build_master 
    ws.require(__requires__) 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 967, in require 
    needed = self.resolve(parse_requirements(requirements)) 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 858, in resolve 
    raise VersionConflict(dist, req).with_context(dependent_req) 
pkg_resources.VersionConflict: (pip 9.0.1 (/usr/local/lib/python3.5/site-packages), Requirement.parse('pip==8.1.1')) 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
    File "/home/mobiglas/bin/pip", line 5, in <module> 
    from pkg_resources import load_entry_point 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 3017, in <module> 
    @_call_aside 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 3003, in _call_aside 
    f(*args, **kwargs) 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 3030, in _initialize_master_working_set 
    working_set = WorkingSet._build_master() 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 661, in _build_master 
    return cls._build_from_requirements(__requires__) 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 674, in _build_from_requirements 
    dists = ws.resolve(reqs, Environment()) 
    File "/usr/local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 853, in resolve 
    raise DistributionNotFound(req, requirers) 
pkg_resources.DistributionNotFound: The 'pip==8.1.1' distribution was not found and is required by the application 

Answer 1

溶液を再インストールPIP

$ easy_install-3.5 pip 
Searching for pip 
Best match: pip 9.0.1 
Adding pip 9.0.1 to easy-install.pth file 
Installing pip3 script to /home/.../bin 
Installing pip3.5 script to /home/.../bin 
Installing pip script to /home/.../bin 

Using /usr/local/lib/python3.5/site-packages 
Processing dependencies for pip 
Finished processing dependencies for pip