python-pip异常：AttributeError：’NoneType’对象没有属性’startswith’
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当我使用pip安装一些软件包时,总是会遇到相同的异常：
PS C:\Users\84682\Desktop> pip install django -v
Config variable 'Py_DEBUG' is unset, Python ABI tag may be incorrect
Config variable 'WITH_PYMALLOC' is unset, Python ABI tag may be incorrect
Collecting django
1 location(s) to search for versions of django:
* https://pypi.python.org/simple/django/
Getting page https://pypi.python.org/simple/django/
Looking up "https://pypi.python.org/simple/django/" in the cache
No cache entry available
Starting new HTTPS connection (1): pypi.python.org
Cleaning up...
Exception:
Traceback (most recent call last):
File "d:\python\python3.5\lib\site-packages\pip\basecommand.py", line 215, in main
status = self.run(options, args)
File "d:\python\python3.5\lib\site-packages\pip\commands\install.py", line 324, in run
requirement_set.prepare_files(finder)
File "d:\python\python3.5\lib\site-packages\pip\req\req_set.py", line 380, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File "d:\python\python3.5\lib\site-packages\pip\req\req_set.py", line 554, in _prepare_file
require_hashes
File "d:\python\python3.5\lib\site-packages\pip\req\req_install.py", line 278, in populate_link
self.link = finder.find_requirement(self, upgrade)
File "d:\python\python3.5\lib\site-packages\pip\index.py", line 465, in find_requirement
all_candidates = self.find_all_candidates(req.name)
File "d:\python\python3.5\lib\site-packages\pip\index.py", line 423, in find_all_candidates
for page in self._get_pages(url_locations, project_name):
File "d:\python\python3.5\lib\site-packages\pip\index.py", line 568, in _get_pages
page = self._get_page(location)
File "d:\python\python3.5\lib\site-packages\pip\index.py", line 683, in _get_page
return HTMLPage.get_page(link, session=self.session)
File "d:\python\python3.5\lib\site-packages\pip\index.py", line 792, in get_page
"Cache-Control": "max-age=600",
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\sessions.py", line 488, in get
return self.request('GET', url, **kwargs)
File "d:\python\python3.5\lib\site-packages\pip\download.py", line 386, in request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\sessions.py", line 475, in request
resp = self.send(prep, **send_kwargs)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\sessions.py", line 596, in send
r = adapter.send(request, **kwargs)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\cachecontrol\adapter.py", line 47, in send
resp = super(CacheControlAdapter, self).send(request, **kw)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\adapters.py", line 423, in send
timeout=timeout
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\connectionpool.py", line 589, in urlopen
self._prepare_proxy(conn)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\connectionpool.py", line 797, in _prepare_proxy
conn.connect()
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\connection.py", line 254, in connect
conn = self._new_conn()
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\connection.py", line 142, in _new_conn
(self.host, self.port), self.timeout, **extra_kw)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\util\connection.py", line 66, in create_connection
if host.startswith('['):
AttributeError: 'NoneType' object has no attribute 'startswith'
Looking up "https://pypi.python.org/pypi/pip/json" in the cache
No cache entry available
Starting new HTTPS connection (1): pypi.python.org
There was an error checking the latest version of pip
Traceback (most recent call last):
File "d:\python\python3.5\lib\site-packages\pip\utils\outdated.py", line 126, in pip_version_check
headers={"Accept": "application/json"},
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\sessions.py", line 488, in get
return self.request('GET', url, **kwargs)
File "d:\python\python3.5\lib\site-packages\pip\download.py", line 386, in request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\sessions.py", line 475, in request
resp = self.send(prep, **send_kwargs)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\sessions.py", line 596, in send
r = adapter.send(request, **kwargs)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\cachecontrol\adapter.py", line 47, in send
resp = super(CacheControlAdapter, self).send(request, **kw)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\adapters.py", line 423, in send
timeout=timeout
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\connectionpool.py", line 589, in urlopen
self._prepare_proxy(conn)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\connectionpool.py", line 797, in _prepare_proxy
conn.connect()
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\connection.py", line 254, in connect
conn = self._new_conn()
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\connection.py", line 142, in _new_conn
(self.host, self.port), self.timeout, **extra_kw)
File "d:\python\python3.5\lib\site-packages\pip\_vendor\requests\packages\urllib3\util\connection.py", line 66, in create_connection
if host.startswith('['):
AttributeError: 'NoneType' object has no attribute 'startswith'
我发现类似的问题是python can not be used in win10？、AttributeError: ‘NoneType’ object has no attribute ‘startswith’和Fail to install pip in Python3.6.但是他们没有答案.
我正在网上搜索很长时间.但是没用.我不知道.请帮助或尝试给出一些想法来实现这一目标.
解决方法:
我收到尝试从docker compose运行pip的错误消息.导致错误的根本问题是我用太少的斜杠定义了我的代理设置：http：/ myproxy ….
然后,在更正了该错误之后,一切正常.
我希望这对遇到同样问题的人有所帮助.
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