pip install does not response, but works well with option '--no-cache-dir'

[quxiaowei]

when install some package, it shows Collecting package_name, it does not go on, just stoped there, without any error message.

when with option --no-cache-dir, or with sudo it works well.

I work on os x 10.11.1, with homebrewed python3.

Any ideas?

[Russell-Jones]

Run it with -vvv to get a better idea of where it's stopping.

[quxiaowei]

Thanks for the reply.

It showed as below:

$ pip3 install -vvv request  
Collecting request   
  Getting page https://pypi.python.org/simple/request/   
  Starting new HTTPS connection (1): pypi.python.org   
  "GET /simple/request/ HTTP/1.1" 200 272    

After typing pip3 -vvv list, following the list, it shows:

Starting new HTTPS connection (1): pypi.python.org   
"GET /pypi/pip/json HTTP/1.1" 200 46090   

then got stuck there.

Running pip3 --no-cache-dir has no problem.

[t0k4rt]

same issue, but I'm using pip installed with pyenv

[xavfernandez]

Looks like a duplicate of #3148.
It would be interesting to see where it is hanging and why, maybe add a break point to https://github.com/pypa/pip/blob/7.1.2/pip/_vendor/cachecontrol/controller.py#L88 and sees where it hangs ?

[quxiaowei]

@xavfernandez

after debug, i found code stuck at
https://github.com/pypa/pip/blob/develop/pip/_vendor/requests/sessions.py#L605
print r
shows
<Response [200]>

i have no idea what this mean

p.s.

when with --no-cache-dir, the if not stream: was not entered.

[quxiaowei]

I found this problem probably had something to do with cache directory or .lock file in cache directory.

When I try pip3 list, after listing all installed package, pip just hung there, didn't exit.
Then I remove http directory in /User/myname/Library/Caches/pip/, pip3 exited immediately.

try pip3 list again, it worked fine.

the third pip3 list just went back to initial situation.

It looks the same as this issue, my pip version = 7.1.2
#2787

[quxiaowei]

@Russell-Jones @xavfernandez @brosner @alex

below is my debug result.

there was exception:
https://github.com/quxiaowei/demo/blob/master/debug#L77

and got stuck at the last line:
https://github.com/quxiaowei/demo/blob/master/debug#L98.
which was trying to open the .lock file.

hoping it will help!

https://github.com/quxiaowei/demo/blob/master/debug

[quxiaowei]

close by mistake!

[quxiaowei]

this problem does not happen on version 8.0.2

[xavfernandez]

It might have been solved by #3382

[mingrammer]

Same here

[gerritholl]

I don't think this was solved by #3382. It is still around in pip 9.0.1, see #3532, of which this is probably a duplicate.