Install flask with pycharm and app engine

Question

I'm using pycharm (4.0.1) on windows, I created a new app engine project, tested, project ran.

In project settings I added a virtual environment where I installed flask. Everything seems to be fine, interpreter points to my virtual environment and when I start typing in pycharm from flask import Flask it autocompletes import.

When I run project it's buildt with no errors. But when I access a page in a browser I get the following error:

File "C:\GAP\myproject\main.py", line 1, in <module>
    from flask import Flask
ImportError: No module named flask

Does anyone know what's the problem?

P.S. ** I followed instructions on https://www.youtube.com/watch?v=FRI3QGNWJYI **

Solution 1

Windows Pycharm, you can go to File->Settings->Project interpreter, click the green + button (Install), type in flask, select Flask from the list then click Install Package. After installation, you will get the message saying flask installed successfully. You can rerun the project.

Solution 2

Simply type the command pip install flask in your terminal

Solution 3

have you ran

pip install flask

also to use flask with google app engine on production environment , you will have to place the flask folder within your project (e.g in a lib/ folder) and add it to the system path in the appengine_config.py like this:

sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'lib'))