pip, proxy authentication and "Not supported proxy scheme"
Trying to install pip on a new python installation. I am stuck with proxy errors. Looks like a bug in get-pip or urllib3??
Question is do I have to go through the pain of setting up CNTLM as described here or is there a shortcut?
get-pip.py documentation says use --proxy="[user:passwd@]proxy.server:port" option to specify proxy and relevant authentication. But seems like pip passes on the whole thing as it is to urllib3 which interprets "myusr" as the url scheme, because of the ':' I guess (?).
C:\ProgFiles\Python27>get-pip.py --proxy myusr:[email protected]:80
Downloading/unpacking pip
Cleaning up...
Exception:
Traceback (most recent call last):
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\basecommand.py", line 122, in main
status = self.run(options, args)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\commands\install.py", line 278, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\req.py", line 1177, in prepare_files
url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\index.py", line 194, in find_requirement
page = self._get_page(main_index_url, req)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\index.py", line 568, in _get_page
session=self.session,
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\index.py", line 670, in get_page
resp = session.get(url, headers={"Accept": "text/html"})
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\_vendor\requests\sessions.py", line 468, in get
return self.request('GET', url, **kwargs)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\download.py", line 237, in request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\_vendor\requests\sessions.py", line 456, in request
resp = self.send(prep, **send_kwargs)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\_vendor\requests\sessions.py", line 559, in send
r = adapter.send(request, **kwargs)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\_vendor\requests\adapters.py", line 305, in send
conn = self.get_connection(request.url, proxies)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\_vendor\requests\adapters.py", line 215, in get_connection
block=self._pool_block)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\_vendor\requests\packages\urllib3\poolmanager.py", line 258, in proxy_fro
m_url
return ProxyManager(proxy_url=url, **kw)
File "c:\users\sg0219~1\appdata\local\temp\tmpxwg_en\pip.zip\pip\_vendor\requests\packages\urllib3\poolmanager.py", line 214, in __init__
'Not supported proxy scheme %s' % self.proxy.scheme
AssertionError: Not supported proxy scheme myusr
Storing debug log for failure in C:\Users\myusr\pip\pip.log
C:\ProgFiles\Python27>
When I run the command without the usrname and password it works fine, but proxy rejects the request saying it needs authentication ("407 authenticationrequired").
C:\ProgFiles\Python27>get-pip.py --proxy 111.222.333.444:80
Downloading/unpacking pip
Cannot fetch index base URL https://pypi.python.org/simple/
Could not find any downloads that satisfy the requirement pip
Cleaning up...
No distributions at all found for pip
Storing debug log for failure in C:\Users\sg0219898\pip\pip.log
C:\ProgFiles\Python27>cat C:\Users\sg0219898\pip\pip.log
------------------------------------------------------------
C:\ProgFiles\Python27\get-pip.py run on 09/29/14 16:23:26
Downloading/unpacking pip
Getting page https://pypi.python.org/simple/pip/
Could not fetch URL https://pypi.python.org/simple/pip/: connection error: ('Cannot connect to proxy.', error('Tunnel connection failed: 407 authenticationrequired',))
Will skip URL https://pypi.python.org/simple/pip/ when looking for download links for pip
Getting page https://pypi.python.org/simple/
Could not fetch URL https://pypi.python.org/simple/: connection error: ('Cannot connect to proxy.', error('Tunnel connection failed: 407 authenticationrequired',))
Will skip URL https://pypi.python.org/simple/ when looking for download links for pip
Cannot fetch index base URL https://pypi.python.org/simple/
URLs to search for versions for pip:
* https://pypi.python.org/simple/pip/
Getting page https://pypi.python.org/simple/pip/
Could not fetch URL https://pypi.python.org/simple/pip/: connection error: ('Cannot connect to proxy.', error('Tunnel connection failed: 407 authenticationrequired',))
Will skip URL https://pypi.python.org/simple/pip/ when looking for download links for pip
Could not find any downloads that satisfy the requirement pip
Cleaning up...
Removing temporary dir c:\users\sg0219~1\appdata\local\temp\pip_build_SG0219898...
No distributions at all found for pip
Exception information:
Traceback (most recent call last):
File "c:\users\sg0219~1\appdata\local\temp\tmp36ynxd\pip.zip\pip\basecommand.py", line 122, in main
status = self.run(options, args)
File "c:\users\sg0219~1\appdata\local\temp\tmp36ynxd\pip.zip\pip\commands\install.py", line 278, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "c:\users\sg0219~1\appdata\local\temp\tmp36ynxd\pip.zip\pip\req.py", line 1177, in prepare_files
url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
File "c:\users\sg0219~1\appdata\local\temp\tmp36ynxd\pip.zip\pip\index.py", line 277, in find_requirement
raise DistributionNotFound('No distributions at all found for %s' % req)
DistributionNotFound: No distributions at all found for pip
C:\ProgFiles\Python27>
I had a brief look at urllib3\poolmanager.py and it doesn't seem to have anything to do with username/passwords.
Answer
This is complaining about the scheme for the URL (which urlparse is understanding to be myusr), to work around that you should instead be doing:
get-pip.py --proxy http://myusr:[email protected]:80