Develop Reference

Pyp3 gives ModuleNotFoundError even if packaged is install

So I'm trying to figure out if I can speed up my code. For that purpose I installed pyp3. But when I try to run the python file using pyp3 I get error in the first line itself ModuleNotFoundError, But when I use simple python my code works smoothly. Is it due to python version difference ? I'm new to pyp3. Any suggestion/help would be appreciated. Thankyou
pypy3 main_feature_extraction.py
Traceback (most recent call last):
File "main_feature_extraction.py", line 1, in <module>
from dotenv import find_dotenv, load_dotenv
ModuleNotFoundError: No module named 'dotenv'

ModuleNotFoundError when running code, but works in ipython

I'm trying to use the BitVector library in python 3.6. When I run ipython and run "from BitVector import BitVector", I get no error and can successfully use BitVector. However, when I try to run my actual code that contains "from BitVector import BitVector", I get the error:
Traceback (most recent call last):
File "testharness.py", line 1, in <module>
from BitVector import BitVector
ModuleNotFoundError: No module named 'BitVector'
I installed BitVector using "pip3 install BitVector"

ModuleNotFoundError: No module named 'bs4' when running a script using the run command

I'm trying to learn webscraping and when running a script using the run command on Windows, it shows an error in cmd:
Traceback (most recent call last):
File "c:\users\user\MyPythonScripts\k.py", line 1, in <module>
import bs4, requests
ModuleNotFoundError: No module named 'bs4'
It only happens using the run command, the script fine on the PyCharm IDE though.

Python Path error - No Module Found error

I'm having issues running ortools on Linux. I downloaded it from google's site (https://developers.google.com/optimization/) and installed it using "make install," but when I go to use it in python I get the following:
Traceback (most recent call last):
File "regular.py", line 42, in <module>
from ortools.constraint_solver import pywrapcp
File "/home/m3/summer/ortools_examples/examples/python/ortools.py", line 2, in <module>
ImportError: No module named linear_solver
It looks like despite installing ortools, its still not in my python path correctly, so when I call it in the file, it doesn't find anything and returns an error, right? Any advice on how to solve this?

sompy Module Import Error

I can't import the sompy module even though I installed it successfully, and it appears in the modules list of my python environment:
When I try to import the sompy module using the following statement:
import sompy
I get the following error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'sompy'
What's wrong?

Which interpreter/IDE are you using? If using PyCharm, the problem could be that PyCharm hasn't identified a root folder for your .py project.
I would try and recreate the root folder as a subfolder and right click > Make source directory.