No module named django but it is installed

Probably, pip installs packages into dist-packages directory, which is not included into PYTHONPATH environment variable. You have a couple of solutions: Create and configure virtualenv for your project, before using pip. This is the most Pythonic way Try to install Django using built-in pip module:python -m pip install django This command should install packages into site-packages directory. You may also add dist-packages to your PYTHONPATH. This question should help you: How to globally … Read more

No module named urllib3

Either urllib3 is not imported or not installed. To import, use at the top of the file. To install write: into terminal. It could be that you did not activate the environment variable correctly. To activate the environment variable, write into terminal. Here env is the environment variable name.

List append() in for loop

The list.append function does not return any value(but None), it just adds the value to the list you are using to call that method. In the first loop round you will assign None (because the no-return of append) to a, then in the second round it will try to call a.append, as a is None … Read more