Python related simple shell scripting issue

[Larz60+]

I have a whole bunch of old projects that were created without virtual environment.
many of them use the same packages, so I thought I'd create a bash script to:

1. Create a virtual environment
   
2. Activate the environment
   
3. Create a requirements.txt file for the packages
   
4. Run pip to install the packages
   
5. deactivate the virtual environment
   
6. Move to next project and do it all again
   

Everything works until I get to step 5 (deactivate) The command executes, but when the script exits, the virtual environment is still running
My bash shell programming skills are very rusty, so what am I doing wrong?

script:

#!/bin/bash
python -m venv venv
. ./venv/bin/activate
cat > ./venv/requirements.txt << EOM
lxml
requests
pylint
BeautifulSoup4
selenium
EOM
pip install -r ./venv/requirements.txt
cp -r ../../../A-D/D/drivers/chromedriver ./venv/bin/chromedriver
cp -r ../../../A-D/D/drivers/geckodriver  ./venv/bin/geckodriver
. deactivate

[mlieqo]

Maybe just instead of:

. deactivate

try:

deactivate

[Larz60+]

That works fine.
Thank You!

[DeaD_EyE]

I guess deactivate is created as alias.

[Larz60+]

It is, when executing activate