...
Note: PyCharm CE doesn't have in-built support for Flask framework.
Inside your project (or folder if you're using Terminal/Command Prompt) create a file called helloworld.py. In the simplest form, it's enough for our web application to contain the following code
...
We can now open an internet browser and navigate to http://localhost:5000/ . You should see something similar to the following screenshot
Return Type
In the example above, for every HTTP request we receive we return a String. However, we can return also larger amount of data - formatted as JSON for example, or even views (HTML).
...
The {% symbols denote Python code. Running our flask application now and navigating to http://localhost:5000/ will give this result
http://flask.pocoo.org/docs/1.0/quickstart/
...