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Pip isn't working after downgrading to version 18

I downgraded Pip from the most recent version using sudo python -m pip install pip==18.0 --upgrade, and now I am receiving the following error when running pip/pip3, including when trying to re-upgrade it using pip3 install --upgrade pip
Traceback (most recent call last):
File "/usr/local/bin/pip3", line 5, in \<module\>
from pip.\_internal import main
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_internal/__init__.py", line 42, in \<module\>
from pip.\_internal import cmdoptions
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_internal/cmdoptions.py", line 16, in \<module\>
from pip.\_internal.index import (
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_internal/index.py", line 14, in \<module\>
from pip.\_vendor import html5lib, requests, six
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_vendor/html5lib/__init__.py", line 25, in \<module\>
from .html5parser import HTMLParser, parse, parseFragment
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_vendor/html5lib/html5parser.py", line 8, in \<module\>
from . import \_tokenizer
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_vendor/html5lib/\_tokenizer.py", line 16, in \<module\>
from .\_trie import Trie
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_vendor/html5lib/\_trie/__init__.py", line 3, in \<module\>
from .py import Trie as PyTrie
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_vendor/html5lib/\_trie/py.py", line 6, in \<module\>
from .\_base import Trie as ABCTrie
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pip/\_vendor/html5lib/\_trie/\_base.py", line 3, in \<module\>
from collections import Mapping
ImportError: cannot import name 'Mapping' from 'collections' (/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/collections/__init__.py)

Not sure if there's a specific reason you installed pip 18.0 as it looks incompatible with Python 3.10. It looks like in Python 3.10 collections.Mapping moved to collections.abc.Mapping. I would suggest just completely uninstalling pip and reinstalling, without using pip to do so.
In general, you should try to use the latest version of pip.

ModuleNotFoundError: No module named 'pyarrow.lib'

This is the full error message.
Traceback (most recent call last):
File "C:\Users\adi\OneDrive\Desktop\Python310\machine learning project.py", line 3, in <module>
import streamlit as st
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\streamlit\__init__.py", line 70, in <module>
from streamlit.delta_generator import DeltaGenerator as _DeltaGenerator
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\streamlit\delta_generator.py", line 19, in <module>
from streamlit import cursor, caching
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\streamlit\cursor.py", line 18, in <module>
from streamlit.scriptrunner import get_script_run_ctx
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\streamlit\scriptrunner\__init__.py", line 16, in <module>
from .script_runner import (
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\streamlit\scriptrunner\script_runner.py", line 35, in <module>
from streamlit.state import (
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\streamlit\state\__init__.py", line 27, in <module>
from .session_state_proxy import (
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\streamlit\state\session_state_proxy.py", line 24, in <module>
from streamlit.type_util import Key
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\streamlit\type_util.py", line 22, in <module>
import pyarrow as pa
File "C:\Users\adi\OneDrive\Desktop\Python310\lib\site-packages\pyarrow\__init__.py", line 65, in <module>
import pyarrow.lib as _lib
I am working with streamlit for a project but can't work out this problem.
I have tried uninstalling and reinstalling streamlit but that did'nt help.
i using python 3.8

Uninstalling and re-installing solved the issue for me:
pip uninstall pyarrow
pip install pyarrow
I think I messed things up by changing the Python version in my Conda environment.

You need to install pyarrow
python3 -m pip install pyarrow

Check these 2 things(worked for me) -
1-If you have changed your python version recently, uninstall all libraries then install.(can be done easily by pip uninstall -r requirements.txt -y & then pip install -r requirements.txt -y
2- If you have installed pyarrow in a different environment.

cant import pyautogui, no module named 'Xlib'

I want to import pyautogui using PyCharm but it keeps showing error:
Traceback (most recent call last):
File "/root/PycharmProjects/untitled2/ghea.py", line 1, in <module>
import pyautogui
File "/root/PycharmProjects/untitled2/venv/lib/python3.7/site-packages/pyautogui/__init__.py", line 152, in <module>
from . import _pyautogui_x11 as platformModule
File "/root/PycharmProjects/untitled2/venv/lib/python3.7/site-packages/pyautogui/_pyautogui_x11.py", line 7, in <module>
from Xlib.display import Display
ModuleNotFoundError: No module named 'Xlib'
There were some similar questions and I tried answers but none of them did work.
i tried:
sudo apt-get install python-xlib
pip install python3_xlib
sudo apt-get install python3-xlib

trying to install pyperclip in python2.7

everytime i run this i face this problem
> sudo pip install pyperclip
Traceback (most recent call last):
File "/usr/bin/pip", line 9, in <module>
from pip import main
File "/home/ot/.local/lib/python2.7/site-packages/pip/__init__.py", line 26, in <module>
from pip.utils import get_installed_distributions, get_prog
File "/home/ot/.local/lib/python2.7/site-packages/pip/utils/__init__.py", line 22, in <module>
from pip.compat import console_to_str, expanduser, stdlib_pkgs
ImportError: No module named compat
ps: im using python 2.7 and this has been happening to me while trying to download other few packages as well
I'm on ubuntu 16.04
Thank you
problem solved i used these 2 lines :
sudo apt-get update
sudo apt-get install python-pyperclip

No Python module despite installing it

I've installed xxhash module with:
sudo pip install --upgrade pip
sudo pip install xxhash
But when I execute:
pydoc modules
I get a list of available modules in which there's no xxhash.
And when I run in terminal a GUI program it gives me an error:
Python: Traceback (most recent call last):
File "./runserver.py", line 34, in <module>
from pogom.search import search_overseer_thread, fake_search_loop
File "/SOME_PATH/resources/app/map/pogom/search.py", line 30, in <module>
from pgoapi import PGoApi
File "/SOME_PATH/resources/app/map/pogom/pgoapi/__init__.py", line 39, in <module>
Python: from .pgoapi import PGoApi
File "/SOME_PATH/resources/app/map/pogom/pgoapi/pgoapi.py", line 34, in <module>
from .rpc_api import RpcApi
File "/SOME_PATH/resources/app/map/pogom/pgoapi/rpc_api.py", line 47, in <module>
from .utilities import to_camel_case, get_time, get_format_time_diff, Rand48, long_to_bytes, generateLocation1, generateLocation2, generateRequestHash, f2i
File "/SOME_PATH/resources/app/map/pogom/pgoapi/utilities.py", line 37, in <module>
import xxhash
ImportError: No module named xxhash
BTW, the 2 first commands worked with no error and when I rerun them it says that these modules are already installed and up to date.