How to check if there is more than one environment variable set for running Python scripts in PATH

Question

I am learning Django and in Command Prompt I have already installed Django, then when I check django-admin --version it says 'django-admin' is not recognized as an internal or external command, operable program or batch file. Because of this I tried to install Django 3 times again but it still output the same.

What is the cause of this problem?

To test is my Django is working or not I have also tried to import django in my python interpreter. I have 2 python versions in my computer the first one is 3.8 and the second one is 3.8.6 ,which the CMD tells me to download. When I tried to import django in python3.8 it output No module named 'django' , when I tried to import django in python3.8.6 it worked !! I hope my python 3.8 work because my Pycharm is using that.

Answer 1

You should use the python version set for the virtual environment. When creating a virtual environment specify the python version or it will use a default one which may not be the desired one:

whereis python

This would return a result similar to:

python: /usr/bin/python3.6-config /usr/bin/python3.6 /usr/bin/python3.6m /usr/bin/python2.7-config /usr/bin/python /usr/bin/python3.6m-config /usr/bin/python2.7 /usr/lib/python3.6 /usr/lib/python3.8 /usr/lib/python2.7 /usr/lib/python3.7 /etc/python3.6 /etc/python /etc/python2.7 /usr/local/lib/python3.6 /usr/local/lib/python2.7 /usr/include/python3.6 /usr/include/python3.6m /usr/include/python2.7 /usr/share/python /usr/share/man/man1/python.1.gz

And I create the virt env with this:

virtualenv -p /usr/bin/python3.6 djangoTut

There are other ways to create virt env. You could also use virtualenvwrapper