Question

When I run the following hellow world program (with the GAE Launcher) it works:

import webapp2

class MainPage(webapp2.RequestHandler):
    def get(self):
        self.response.headers['Content-Type'] = 'text/plain'
        self.response.out.write('Hello, webapp World!')

app = webapp2.WSGIApplication([('/', MainPage)],
    debug=True)

However If i go to the terminal I can’t import webapp2:

C:\Users\Robert>python
Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> import webapp2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named webapp2
>>>

Also my IDE provides no autocomplete for webapp2 objects.

Seeing as GAE Launcher uses the same python version as I use in the terminal, I’m confused as to how the import must work within the GAE launcher.

Answer 1

It’s not a bug. Appengine SDK includes webapp2 since version 1.6.

By default, you can not import webapp2 from the terminal because google_appengine is not added to PATH by default.

Add the following dirs to Python’s PATH; C:\Program Files\Google\google_appengine\ and C:\Program Files\Google\google_appengine\lib\ and you will have the same enviroment the SDK provides.