Errors while installing matplotlib using pip install
If you are trying to install matplotlib in your organisation laptop then your organsiation could be blocking the network to connect and download the package. This is one reason its showing retrying error message. You can try disconnecting vpn if you are connecting with any and retry installing it. This error is due to network issue only.
I updated my Python3 to Python 3.10. It still is showing Python 3.8 as my current version. but that's not the issue. My issue is that when I went to install the matplotlib package using pip install matplotlib, I got some errors. I also tried running pip3 install matplotlib. I got the following errors:

WARNING: Retrying (Retry(total=4, connect=None, read=None,
redirect=None, status=None)) after connection broken by
'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection
object at 0x1057db7c0>: Failed to establish a new connection: [Errno
8] nodename nor servname provided, or not known')':
/simple/matplotlib/
ERROR: Could not find a version that satisfies the requirement
matplotlib (from versions: none) ERROR: No matching distribution found
for matplotlib

The I tried running /Applications/Xcode.app/Contents/Developer/usr/bin/python3 -m pip install --upgrade pip and got the following error:

Defaulting to user installation because normal site-packages is not
writeable.
Requirement already up-to-date: pip in
/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/site-packages
(20.2.3)

I don't get it. It wanted me to upgrade pip and then says it's already up to date?
I just need the matplotlib module installed for my Python scripts.