Why is python saying I have "no module named venv"?
Since you are on Python 2, you need to execute using the virtualenv module that you installed.
First step, as you originally tried to do, but this time you specify the "virtualenv" module and the name of the virtualenv. In this case flask:
python -m virtualenv flaskThen you activate your virtualenv like this:
source flask/bin/activateThen install flask with pip inside the virtualenv
pip install flaskIf you want to deactivate your virtualenv, simply type:
deactivateIf running on Python 3, the venv command is built-in and you can simply do:
python3 -m venv flaskNote, depending on how your Python 3 is installed, your python execution command might differ. You could be running it as python3, python3.5, python3.6.
If are you using "windows".Try it in "cmd"navigate in cmd to the folder you want to install venv and do:
python3 -m venv project_envYou can change the name of the project to.