Using PIP in Python 3.10 on Windows 10

[Eryk Sun]

On 1/14/22, Mats Wichmann <mats at wichmann.us> wrote:
> On 1/14/22 10:40, Jonathan Gossage wrote:
>
> By this do you mean the python.org installer or the Microsoft Store
> installer - they're similar but have some differences.

Jonathan is not using the store app. The store app is installed to the
system in "%ProgramFiles%\WindowsApps" and "%ProgramData%\Packages",
and in each user's "%LocalAppData%\Packages". The user's enabled app
aliases are created in "%LocalAppData%\Microsoft\WindowsApps".

>> It looks as if the launcher is expecting to find Python installed at
>> c:\Program Files\Python3.10 whereas it has actually been installed at
>> D:\Users\jgoss\AppData\local\python\python3.10.
>
> earlier you said "non-standard location" but that's not non-standard at
> all, that's actually the standard place for the python.org installer to
> put it if you requested a single user install (as opposed to a
> system-wide one).

Jonathan did not install to a standard location. The standard location
for a per-user installation is
"%LocalAppData%\Programs\Python\PythonXY[-32]". If "%LocalAppdata%" is
"D:\Users\jgoss\AppData\local", then the standard location for 64-bit
3.10 would be "D:\Users\jgoss\AppData\local\Programs\Python\Python310".

> If you can find Python, whether it's called "python" or "py" in your
> case, then you should be able to reach pip with "python -m pip" or "py
> -m pip".  If you're using the python.org version, you probably want to
> use "py" to launch Python.

Upgrading pip in Windows always requires running the module with `-m
pip`. By default the py launcher is installed, in which case pip 3.10
can be upgraded with the following command:

    py -3.10 -m pip install --upgrade pip

If Python is installed for all users, the above command may require
elevating to get administrator access. Afterwards you can use the
"pip.exe" launcher, but first check `where.exe pip` to make sure the
first one found is the right one. If not, modify your per-user and/or
system PATH to fix it.