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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.

How can i fix if pip3 is not working after instalation?

I was trying to install matplotlib but first I had to install pip in MobaXterm and I think something failed.
I did:
python -m ensurepip
apt-get install python3-pip
Here I didn't want to, but I closed MobaXterm.
Then I tried starting again and I got:
Found package python3-pip
Package python3-pip is already installed, skipping
But then, when I try to install matplotlib:
pip3 install matplotlib
And I got:
Traceback (most recent call last):
File "/bin/pip3", line 7, in <module>
from pip import main
File "/usr/lib/python3.4/site-packages/pip/__init__.py", line 13, in <module>
from pip.utils import get_installed_distributions, get_prog
File "/usr/lib/python3.4/site-packages/pip/utils/__init__.py", line 22, in <module>
from pip._vendor import pkg_resources, six
File "/usr/lib/python3.4/site-packages/pip/_vendor/pkg_resources/__init__.py", line 36, in <module>
import plistlib
File "/usr/lib/python3.4/plistlib.py", line 65, in <module>
from xml.parsers.expat import ParserCreate
File "/usr/lib/python3.4/xml/parsers/expat.py", line 4, in <module>
from pyexpat import *
ImportError: No such process
Thank you and sorry, I'm really not an experienced programmer.

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

Using Pip and Importing Packages in Python 3 on Ubuntu

I'm on Lubuntu (a minimal build of Ubuntu). I installed Python 3.6.1 with:
sudo apt-get install python3.6
I want to use Twilio, so I tried this:
pip install twilio
It said pip wasn't recognized, so I ran this, followed by the above again:
sudo apt install python-pip
I fired up Python 3.6 and tried importing it, but that didn't work out:
>>> from twilio.rest import Client
ModuleNotFoundError: No module named 'twilio'
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
from apport.fileutils import likely_packaged, get_recent_crashes
File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
from apport.report import Report
File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>
import apport.fileutils
File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
from apport.packaging_impl import impl as packaging
File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 24, in <module>
import apt
File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module>
import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'
I'm new to python3 (which I want to use for the secrets module), Ubuntu, and twilio, so I'm not really sure what's going on here. I'd think if it was as simple as a module not being found, the stack trace would be much shorter... I'm not sure if the stack trace is so long because maybe Python 3 produces longer ones than 2 did, or Ubuntu is trying to do something weird because both Python 2 and 3 are installed (and perhaps two versions of 3 at that), or if maybe this is the work of twilio?

Try the following to download pip:
wget https://bootstrap.pypa.io/get-pip.py
Then install pip by running:
sudo python3 get-pip.py
Then you can install twilio with pip
sudo pip3 install twilio

ImportError: No module named 'numpy.ma'

The full error:
import matplotlib
Traceback (most recent call last):
File "<pyshell#0>", line 1, in <module>
import matplotlib
File "R:\Python34\lib\site-packages\matplotlib\__init__.py", line 180, in <module>
from matplotlib.cbook import is_string_like
File "R:\Python34\lib\site-packages\matplotlib\cbook.py", line 34, in <module>
import numpy.ma as ma
ImportError: No module named 'numpy.ma'
numpy is imported normally.
How do I install numpy.ma?

I also faced the same situation today. I found that I had saved a file as numpy.py, so check the filenames in your folder.

Re-install the correct version of numpy.
download correct .whl file from http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy
pip install C:\Path\To\Wheel\Filename.whl # for example: numpy-1.9.2+mkl-cp34-none-win_amd64.whl

Use Your (via terminal) package manager and search.
Example on Ubuntu:
aptitude search numpy
and install package.
In my case:
apt-get install python-numpy