Could not find a version that satisfies the requirement Flask (from versions: none)

Question

need a help with downloading Flask. I searched a lot of information about it, but unfortunately haven't found the right algorithm how to make it. here is the code

pip install -U Flask

Collecting Flask

WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(0, 'Error'))': /simple/flask/

ERROR: Could not find a version that satisfies the requirement Flask (from versions: none)

ERROR: No matching distribution found for Flask

Using Mac OS 10.15.4, Python 3.8.3, have no proxy that's why this answer didn't help me Could not find a version that satisfies the requirement flask (from versions: ) No matching distribution found for flask

PS Sorry if i made some mistakes in my english.

Answer 1

okey, guys, i have just rebooted my computer and it finally works