pip 18.0 install fails with AttributeError: 'NoneType' object has no attribute 'bytes'

PyCharm installs pip as an egg (see C:\projects\nltk-tutorial\venv\lib\site-packages\pip-10.0.1-py3.7.egg in the traceback above) and egg installations are not supported by pip (we can't upgrade egg-layout installs).

You need to raise this with JetBrains, or create your environments manually. I believe there's an existing issue about this on the PyCharm tracker (I raised one a couple of years ago, but haven't heard anything about it since - I stopped tracking it when I gave up using PyCharm because this issue was too much of a problem for me).

try:
python -m pip install -U --force-reinstall pip
inside your venv

I am having a similar problem (at least, the traceback is similar). I am using a fresh conda environment (most packages from conda-forge), pip 18.1, python 3.6, and linux. The force-reinstall command given does not solve my issue. I am utilizing the new PEP508 syntax for installing private packages from our internal gitlab server (anonymized below). I added some print statements that I hope will be helpful:

$ pip install -e .
Obtaining file:///nas/home/broot/Programs/tools/catutils
req: shapely
comes_from: catutils==0.15.dev1 from file:///nas/home/broot/Programs/tools/catutils
req: netCDF4
comes_from: catutils==0.15.dev1 from file:///nas/home/broot/Programs/tools/catutils
req: aershp>=0.10
comes_from: catutils==0.15.dev1 from file:///nas/home/broot/Programs/tools/catutils
req: numpy!=1.10,!=1.11.0
comes_from: catutils==0.15.dev1 from file:///nas/home/broot/Programs/tools/catutils
req: scipy
comes_from: catutils==0.15.dev1 from file:///nas/home/broot/Programs/tools/catutils
req: GDAL
comes_from: catutils==0.15.dev1 from file:///nas/home/broot/Programs/tools/catutils
Requirement already satisfied: shapely in /rd22/scratch/broot/miniconda/envs/py3k/lib/python3.6/site-packages (from catutils==0.15.dev1) (1.6.4.post1)
Requirement already satisfied: netCDF4 in /rd22/scratch/broot/miniconda/envs/py3k/lib/python3.6/site-packages (from catutils==0.15.dev1) (1.4.1)
req: numpy>=1.7
comes_from: netCDF4 in /rd22/scratch/broot/miniconda/envs/py3k/lib/python3.6/site-packages (from catutils==0.15.dev1)
req: cftime
comes_from: netCDF4 in /rd22/scratch/broot/miniconda/envs/py3k/lib/python3.6/site-packages (from catutils==0.15.dev1)
Requirement already satisfied: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1) (0.16.dev1)
req: nose
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: numpy
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: matplotlib<2.2.0
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: Shapely
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: GDAL
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: pyyaml
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: jinja2
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: scripttest
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: netCDF4
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: six
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
req: atomic_context@ git+ssh://git@***********.com/common/atomic_context.git@release
comes_from: aershp>=0.10 in /nas/home/broot/Programs/tools/aershp/lib (from catutils==0.15.dev1)
Exception:
Traceback (most recent call last):
  File "/home/broot/scratch/miniconda/envs/py3k/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 143, in main
    status = self.run(options, args)
  File "/home/broot/scratch/miniconda/envs/py3k/lib/python3.6/site-packages/pip/_internal/commands/install.py", line 318, in run
    resolver.resolve(requirement_set)
  File "/home/broot/scratch/miniconda/envs/py3k/lib/python3.6/site-packages/pip/_internal/resolve.py", line 102, in resolve
    self._resolve_one(requirement_set, req)
  File "/home/broot/scratch/miniconda/envs/py3k/lib/python3.6/site-packages/pip/_internal/resolve.py", line 318, in _resolve_one
    add_req(subreq, extras_requested=available_requested)
  File "/home/broot/scratch/miniconda/envs/py3k/lib/python3.6/site-packages/pip/_internal/resolve.py", line 275, in add_req
    wheel_cache=self.wheel_cache,
  File "/home/broot/scratch/miniconda/envs/py3k/lib/python3.6/site-packages/pip/_internal/req/constructors.py", line 290, in install_req_from_req
    if req.url and comes_from.link.netloc in domains_not_allowed:
AttributeError: 'NoneType' object has no attribute 'netloc'

Ah, I didn't look closely enough at the tracebacks, shall I file a new bug report?

@WeatherGod: that's not the same issue, check the discussion around this comment: https://github.com/pypa/pip/pull/5571#pullrequestreview-162221673.

Ah, indeed, shall I add my traceback there?

Better to open a new bug, so the issue can be properly tracked.

Fix from @fingerman not working in my case. Installation is broken, any idea about what is going on ?

Still happening.

@fingerman Thanks. That worked instantly.

python -m pip install -U --force-reinstall pip

You might need the easy install, as it worked for me when upgrading my Pip
easy_install -U pip
Check this https://stackoverflow.com/questions/52460484/python-3-5-pip-9-attributeerror-nonetype-object-has-no-attribute-bytes

@fingerman Thanks

python -m pip install -U --force-reinstall pip

works

@fingerman having same error for force install.
Please help.

@fingerman having the same issue on pip 19.0.1, any other fix? Thanks

@fingerman having the same issue on pip 19.0.1, any other fix? Thanks

I had the same but MichealAbaho from the above comment with the easy_install -U pip command fixed the issue for me.

easy_install -U pip worked for me. Was having the issue for 19.0.1

Same for me. python -m pip install -U --force-reinstall pip didn't fix the problem where easy_install -U pip did. Also on 19.0.1.

easy_install -U pip
The command above is good!

ok, I just encounter the same issue but I have some basic info about this,

the old pip is actually inside my --user, so
C:\Python37\python.exe -m pip install --user --force-reinstall -U pip works in my case
if I didn't instruct with --user the failure will occur

manual remove old version of pip in my user install directory also works,

--user Install to the Python user install directory for your platform. 
Typically ~/.local/, or %APPDATA%\Python on Windows. 
(See the Python documentation for site.USER_BASE for full details.)

python -m pip install -U --force-reinstall pip
worked for me

"python -m pip install -U --force-reinstall pip" didn't work but "easy_install -U pip" does the trick for me. Thanks a lot.

Nothing worked for me, I eventually installed a coexisting version of Python (3.7), and pip could be upgrdaed for that version.

@sapien47 https://github.com/pypa/pip/issues/5820#issuecomment-473693608

import sys
import pprint
pprint.pprint(sys.path)

This shows where python is looking for python files. It can be useful when you try to troubleshoot python import errors

@fingerman having the same issue on pip 19.0.1, any other fix? Thanks

I had the same but MichealAbaho from the above comment with the easy_install -U pip command fixed the issue for me.

THANK YOU! this damn problem has been bugging me for the past hour, would you mind how you came across this fantastic solution? i will go learn about wth an .egg is

easy_install -U pip worked for me. thank you!

I use jupyter notebook with py3.6 on win10. The problem still exists when I upgrade pip from 19.0.3 to 19.1.1.

Here is my sys.path:

['',
 'C:\\ProgramData\\Anaconda3\\python36.zip',
 'C:\\ProgramData\\Anaconda3\\DLLs',
 'C:\\ProgramData\\Anaconda3\\lib',
 'C:\\ProgramData\\Anaconda3',
 'C:\\Users\\SSQ\\AppData\\Roaming\\Python\\Python36\\site-packages',
 'C:\\ProgramData\\Anaconda3\\lib\\site-packages',
 'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\Sphinx-1.5.6-py3.6.egg',
 'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\win32',
 'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\win32\\lib',
 'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\Pythonwin',
 'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\IPython\\extensions',
 'C:\\Users\\SSQ\\.ipython']

However, easy_install -U pip did work. Thx!

ok, I just encounter the same issue but I have some basic info about this,

the old pip is actually inside my --user, so
C:\Python37\python.exe -m pip install --user --force-reinstall -U pip works in my case
if I didn't instruct with --user the failure will occur

manual remove old version of pip in my user install directory also works,

--user Install to the Python user install directory for your platform. 
Typically ~/.local/, or %APPDATA%\Python on Windows. 
(See the Python documentation for site.USER_BASE for full details.)

This seems to be the case for my error as well.
Use pip list --user to find if pip is installed at user level
where pip on windows lists full path of where pip binaries are

Still happening while using Python 3.6, Windows 10, going from pip 10.0.1 to 19.1.1

python -m pip install -U --force-reinstall pip

did fix it for me.

try:
python -m pip install -U --force-reinstall pip
inside your venv

thanks bro

python -m pip install -U --force-reinstall pip
worked for me, while I was upgrading from 18.1 to 19.1.1
Thanks for your help & sorry for my bad English.

Closing since we have a resolution on this.