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python.exe -m pip install --upgrade pip

I installed python 3.9.13 and it came with pip 22.0.4.
So I tried to upgrade pip for a latest version using 'pip install --upgrade pip' but an error occurred.
The message was like 'ERROR: Could not install packages due to an OSError. Consider using the --user option or check the permissions'
Then, I tried 'python.exe -m pip install --upgrade pip' instead and it was clear.
Is there any difference using 'python.exe -m' option?
I'd like to know what the difference is and what that command exactly means.
I searched for the option but couldn't find right answers.
Thank you in advance :)

I'm unable to install some specific libraries via pip install

I've been trying to install the gym library via pip install gym
I get the following error
WARNING: Discarding https://files.pythonhosted.org/packages/87/86/3f5467531428b6ce6f3c12d3121b4304d2ea1536a50775a4df036add37b8/gym-0.23.1.tar.gz#sha256=d0f9b9da34edbdace421c9442fc9205d03b8d15d0fb451053c766cde706d40e0 (from https://pypi.org/simple/gym/) (requires-python:>=3.7). Requested gym==0.23.1 from https://files.pythonhosted.org/packages/87/86/3f5467531428b6ce6f3c12d3121b4304d2ea1536a50775a4df036add37b8/gym-0.23.1.tar.gz#sha256=d0f9b9da34edbdace421c9442fc9205d03b8d15d0fb451053c766cde706d40e0 has inconsistent version: filename has '0.23.1', but metadata has '0.23.1'
ERROR: Could not find a version that satisfies the requirement gym==0.23.1
ERROR: No matching distribution found for gym==0.23.1
pip then defaults to trying to install previous versions 0.23.0, 0.22.0 and so on.
I get the following warning for all versions and none installs.
request gym from <link> has inconsistent version: filename has '0.9.0', but metadata has '0.9.0'
After some Googling for similar errors, I tried updating pip python3 -m pip install --upgrade pip setuptools wheel
but I get the same problem with version mismatch, and it tries to install old versions of pip and fails.
I'm on Python 3.10.4 and pip 21.0 under Arch Linux.
edit: The same problem happens to any package I try to install with pip.

I found a solution here.
The problem seems to be caused by the python-pip package under Arch Linux.
One possible way to fix it:
sudo pacman -Rncs python-pip
python -m ensurepip

If you cannot figure out pip use git
git clone https://github.com/openai/gym
cd gym
pip install -e .

Try to install with an upgrade option to install the latest without cache since looks that the latest version is stable:
pip install gym -U --no-cache-dir
-U, --upgrade Upgrade all packages to the newest available version
--no-cache-dir Disable the cache
If this won't help you can try to install using legacy version resolver (as per https://github.com/pypa/pip/issues/9203):
pip install gym -U --no-cache-dir --use-deprecated=legacy-resolver

pip3 installed without pip

I have pip3 installed from when I installed Python3 through Homebrew. But now when I use pip3 to install things, I get the following message:
You are using pip version 10.0.1, however version 19.2.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
But when I use pip install --upgrade pip, I get the following message:
-bash: pip: command not found
I'm not sure what the precise terminology is, but should I be "linking" the pip command to pip3?

Upgrade pip3 as follows to avoid the confusion between pip and pip3:
python3 -m pip install --upgrade pip

Cannot upgrade pip 9.0.1 to 9.0.3 - requirement already satisfied

I'm trying to update pip using pip install --upgrade pip, but I get a "requirement satisfied" error and an "outdated version" message at the same time
$ pip install --upgrade pip
Requirement already up-to-date: pip in
/Users/user/Envs/proj/lib/python2.7/site-packages
You are using pip version 9.0.1, however version 9.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip'
command.
How do I update?

Recently, Python.org sites stopped supporting TLS version 1.0 and 1.1, which could be causing the chicken-and-egg problem you are facing. Try upgrading pip without using pip:
curl https://bootstrap.pypa.io/get-pip.py | python

These two commands worked for me:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
then:
python get-pip.py

Try:
Right Click Anaconda Prompt (Run as Admin)
>> conda update pip
(It worked for me)

The curl answer above didn't work for me. This worked for me
sudo python -m pip install --upgrade pip

This worked for me in windows with Anaconda3: Add **\Anaconda3\Library\bin to windows path
set path=anaconda_install_path\Anaconda3\Library\bin to windows path;%path%

Apparently the issue is with Anaconda. This solution worked for me: https://github.com/conda/conda/issues/9746#issuecomment-616314792

pip is a package and cannot be directly executed

Im trying to install google assistant on my Raspberry Pi, but when I keep getting an error: pip is a package and cannot be directly executed

Instead of
pip [...]
Try doing
python -m pip [...]
Can't really help more without more info.

I think your version of pip is old. You need to upgrade it first, like this:
pip install -U pip
You may need to upgrade setuptools too:
pip install -U setuptools
Since google-assistant-library is available as a wheel, you need to install wheel too:
pip install wheel
I don't know if you can do that with Raspberry Pi, but I recommend you to used a virtualenv. That way, you have a fresh and isolated Python executable and a recent version of pip.
virtualenv your_proj
source your_proj/bin/activate
pip install wheel
pip install google-assistant-library

For newer version ie. using pip3:
pip3 install -U <<package name>>

I had the same problem.
I think it was an outcome of a failed
> .\python.exe -m pip install --upgrade pip
do to some environment misconfiguration.
So it first removed the existing version 10.0.1, and then the installation of the new version 22.3.1 failed, leaving me with no pip.
From official documentation, I ran
> .\python.exe -m ensurepip --upgrade
which restored the original pip 10.0.1.
Then I fixed the environment problem, and then again
> .\python.exe -m pip install --upgrade pip
I now have pip 22.3.1.