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How to correct wrong pip path in venv?

I have a Flask app that with and using venv for my virtual environment. For some reason, which pip has suddenly stopped installing packages in venv/lib/python3.9/site-packages, but to a completely different repository on my system. How do I redirect pip to install packages to the correct path in venv?

instead of using pip as a stand alone command in terminal, i suggest you to use python -m pip instead, here python will be assoicated with the project (in case of Virtual environment) or whole system level (in case docker single app ). This will keep track and tell the system to run all package/module related to python interpreter assoicated with the project only

You can use the -t flag provided by the pip install command.
pip install <package_name> -t <full_location_path>

unable to import coolname and wtforms_components

I am using python 3.9.2 and pip 21.0.1. I've created a virtual environment. In that I installed flask 1.1.2 and Werkzeug 1.0.0.
I tried to install coolname==1.1.0 and wtforms_components==0.10.5, it says successfully installed but it is not importing files.
from coolname I want generate_slug package
and from wtforms_components, I want TimeField
What I have done to install them:
pip install WTForms-Components==0.10.5
pip install coolname
Can you please tell me how can I get these packages?

You might be using the global interpreter instead of your virtual environment.
You need to check that your IDE's interpreter is configured to that virtual environment you created. if you want to run it from the command line you first need to activate it with env_name\Scripts\activate and then run it.

ModuleNotFoundError: No module named 'zeep'

I have created a virtual environment on which I ran the following command to install Zeep (I am on macOS Big Sur):
pip3 install zeep
To verify if I have correctly installed it I ran:
pip3 freeze
And I can see in the list :
zeep==4.0.0
However, when I run my script using flask run I get the following error:
I have flask installed and activated my virtualenv:
What I don't understand is that when I go directly on python from the command line it does import zeep :
Any help would be appreciated. Thank you.

Two things come to my mind with this problem.
Make sure the venv is activated
source /venv/bin/activate
Make sure flask is installed after activating the venv.
pip install Flask

You are running in an Anaconda/Conda virtual environment, this can be seen from your command prompt. Conda is a package management platform like, but separate to, Pip.
When you install a package with Pip it is not available in an Anaconda virtual environment.
Also you need to take note of where you are actually installing packages to when you run pip. If you run pip outside of a virtual environment then it is going to install packages into your system Python which is not a good thing.
I have flask installed and activated my virtualenv:
How are you activating the virtual environment? Your third screenshot shows the Anaconda installation of Python.

No module named win32com

I've just installed Python for the first time and I'm trying to reference the win32com module however, whenever I try to import it I get the message "no module name win32com".
Any ideas?

the below plus add pywin32 in PyCharm setting work for me
python -m pip install pywin32

As it is not built into Python, you will need to install it.
pip install pywin

Since win32com is a Windows-specific package, this answer will be geared towards Windows users.
Option 1: Install locally with pipenv (recommended)
You can use a package manager like pipenv to manage your dependencies.
Ensure you have pipenv installed (pip install pipenv).
In your project directory, run pipenv install pypiwin32 to install the package.
Now you can run your code using commands like the following pipenv run main.py
Example main.py code:
import win32com
print(win32com)
Option 2: Install locally with venv (recommended)
If pipenv isn't your thing, you can use the built-in virtual environments.
From your project directory, run python -m venv venv to setup you virtual environment.
Run venv\Scripts\activate.bat from your project directory whenever you want to use this virtual environment (you will see (venv) added to your shell prompt to know it's activated).
Run pip install pypiwin32 from your active virtual environment to install the package.
You can run your code like python main.py so long as the virtual environment is active.
Option 3: Install globally (typically not recommended)
This is not typically recommended, but included anyway.
Using pip install pypiwin32 you can install the package globally.
Then you can run your code with just python main.py.

This will work as well
python -m pip install pywin32

You should try using pip this way:
pip install pypiwin32
It is pypiwin32 which should work.

When working with python projects its always a good idea to create a so called virtual environment, this way your modules will be more organized and reduces the import errors.
for example lets assume that you have a script.py which imports multiple modules including pypiwin32.
here are the steps to solve your problem:
1. depending on you operating system you need to download and install virtualenv package, in debian its as simple as sudo apt install virtualenv .
2. after installing 'virtualenv' package go to your project/script folder and create a virtualenv folder with virtualenv venv it creates a folder named venv in that directory.
3. activate your virtualenv source /path/to/venv/bin/activate if your already in the directory where venv exists just issue source venv/bin/activate
4. after activating your venv install you project dependencies pip install pypiwin32 or pip install pywin
5. run your script, it wont throw that error again :)

Have MySQLdb installed, works outside of virtualenv but inside it doesn't exist. How to resolve?

I'm using the most recent versions of all software (Django, Python, virtualenv, MySQLdb) and I can't get this to work. When I run "import MySQLdb" in the python prompt from outside of the virtualenv, it works, inside it says "ImportError: No module named MySQLdb".
I'm trying to learn Python and Linux web development. I know that it's easiest to use SQLLite, but I want to learn how to develop larger-scale applications comparable to what I can do in .NET. I've read every blog post on Google and every post here on StackOverflow and they all suggest that I run "sudo pip install mysql-python" but it just says "Requirement already satisfied: mysql-python in /usr/lib/pymodules/python2.7"
Any help would be appreciated! I'm stuck over here and don't want to throw in the towel and just go back to doing this on Microsoft technologies because I can't even get a basic dev environment up and running.

If you have created the virtualenv with the --no-site-packages switch (the default), then system-wide installed additions such as MySQLdb are not included in the virtual environment packages.
You need to install MySQLdb with the pip command installed with the virtualenv. Either activate the virtualenv with the bin/activate script, or use bin/pip from within the virtualenv to install the MySQLdb library locally as well.
Alternatively, create a new virtualenv with system site-packages included by using the --system-site-package switch.

source $ENV_PATH/bin/activate
pip uninstall MySQL-python
pip install MySQL-python
this worked for me.

I went through same problem, but using pip from virtualenv didn't solve the problem as I got this error
error: could not delete '/Library/Python/2.7/site-packages/_mysql.so': Permission denied
Earlier I had installed the package by sudo pip install mysql-python
To solve, copy files /Library/Python/2.7/site-packages/MySQL_python-1.2.5-py2.7.egg-info and /Library/Python/2.7/site-packages/_mysql* to ~/v/lib/python-2.7/site-packages and include /usr/local/mysql/lib in DYLD_LIBRARY_PATH env variable.
For the second step I am doing export DYLD_LIBRARY_PATH=/usr/local/mysql/lib in ~/.profile