Upgrade bug

[maggot99999]

• Pip version: 7.1.2
• Python version: 3.5
• Operating System: Windows 10 Pro

Description:

Collecting pip
  Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB)
    100% |################################| 1.3MB 214kB/s
Installing collected packages: pip
  Found existing installation: pip 7.1.2
Exception:
Traceback (most recent call last):
  File "C:\Users\Каспар\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pip\basecommand.py", line 211, in ma
in
    status = self.run(options, args)
  File "C:\Users\Каспар\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pip\commands\install.py", line 311,
in run
    root=options.root_path,
  File "C:\Users\Каспар\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pip\req\req_set.py", line 640, in in
stall
    requirement.uninstall(auto_confirm=True)
  File "C:\Users\Каспар\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pip\req\req_install.py", line 673, i
n uninstall
    for path in pip.wheel.uninstallation_paths(dist):
  File "C:\Users\Каспар\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pip\wheel.py", line 512, in unique
    for item in fn(*args, **kw):
  File "C:\Users\Каспар\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pip\wheel.py", line 531, in uninstal
lation_paths
    r = csv.reader(FakeFile(dist.get_metadata_lines('RECORD')))
  File "C:\Users\Каспар\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pip\_vendor\pkg_resources\__init__.p
y", line 1619, in get_metadata_lines
    return yield_lines(self.get_metadata(name))
  File "C:\Users\Каспар\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pip\_vendor\pkg_resources\__init__.p
y", line 1616, in get_metadata
    return self._get(self._fn(self.egg_info, name)).decode("utf-8")
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xca in position 22365: invalid continuation byte
You are using pip version 7.1.2, however version 9.0.1 is available.

This is how it looks like. I have russian letters in my Microsoft Account so I can't change it. So I don't know how to upgrade then. I think it suppose to simply upgrade the pip package but it gives these errors

What I've run:

python -m pip install --upgrade pip

[xavfernandez]

Duplicate of #4003

[pfmoore]

This should now be fixed by #4486, which is now available in the development version of pip and will be released in pip 10. I am closing this issue, but if you are still able to reproduce the problem in the development version of pip, please reopen it with a description of now to replicate the issue.