Pip doesn’t work on latest IPadOS

Hello,

Trying a-Shell on my iPad Pro using latest stable IPadOS 15 release, pip doesn’t work and i can’t explain why :(
Here’s the output of the single `pip` command :
```
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/bin/pip", line 5, in
from pip._internal.cli.main import main
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/site-packages/pip/_internal/cli/main.py", line 9,
in
from pip._internal.cli.autocompletion import autocomplete
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/site-packages/pip/_internal/cli/autocompletion.py
", line 10, in
from pip._internal.cli.main_parser import create_main_parser
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/site-packages/pip/_internal/cli/main_parser.py",
line 8, in
from pip._internal.cli import cmdoptions
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/site-packages/pip/_internal/cli/cmdoptions.py", l
ine 23, in
from pip._internal.cli.parser import ConfigOptionParser
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/site-packages/pip/_internal/cli/parser.py", line
12, in
from pip._internal.configuration import Configuration, ConfigurationError
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/site-packages/pip/_internal/configuration.py", li
ne 21, in
from pip._internal.exceptions import (
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/site-packages/pip/_internal/exceptions.py", line
7, in
from pip._vendor.pkg_resources import Distribution
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/site-packages/pip/_vendor/pkg_resources/__init__.
py", line 36, in
import email.parser
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/email/parser.py", line 12, in
from email.feedparser import FeedParser, BytesFeedParser
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/email/feedparser.py", line 27, in
from email._policybase import compat32
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/email/_policybase.py", line 9, in
from email.utils import _has_surrogates
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/email/utils.py", line 28, in
import random
File "/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/random.py", line 64, in
from hashlib import sha512 as _sha512
ImportError: cannot import name 'sha512' from 'hashlib' (/private/var/containers/Bundle/Application/5CCB83C0-8BAB-46B8-A589-901EB184E169/a-Shell.app/Library/lib/python3.9/
hashlib.py)
```
Any ideas ?