Error Python 2.7 on Google App Engine - Threadsafe cannot be enabled with CGI handler

Question

I have tried to move to Python 2.7 from Python 2.5 but I keep getting the same error everytime.

I have made a very simple test in Python 2.5 working with the app.yaml file and just one script main.py and it works fine. The script it just a Hello World type to check everythin works fine.

app.yaml

application: sparepartsfinder version: 1 runtime: python api_version: 1   handlers:  - url: /blog   script: main.py  - url: /blog/new_entry   script: main.py  

main.py

from google.appengine.ext import webapp from google.appengine.ext.webapp.util import run_wsgi_app  class MainPage(webapp.RequestHandler):     def get(self):         self.response.headers['Content-Type'] = 'text/plain'         self.response.out.write('Hello, webapp World!')  application = webapp.WSGIApplication(                                      [('/', MainPage),                                       ('/blog', MainPage),                                       ('/blog/new_entry',MainPage),                                       ('/blog/archive/.*',MainPage)],                                      debug=True)  def main():     run_wsgi_app(application)  if __name__ == "__main__":     main() 

When I change to Python 2.7 I follow the documents on the Google App Engine to the letter making the changes in both the app.yaml and main.py script.

app.yaml

application: sparepartsfinder version: 1 runtime: python27 api_version: 1 threadsafe: true   handlers:  - url: /blog   script: main.py  - url: /blog/new_entry   script: main.py   - url: /blog/archive/.*   script: main.py   - url: .*   script: main.py 

main.py

import webapp2  class MainPage(webapp2.RequestHandler):     def get(self):         self.response.out.write('Hello prueba!')  app = webapp2.WSGIApplication([('/', MainPage),                                ('/blog', MainPage),                                ('/blog/new_entry',MainPage),                                ('/blog/archive/.*',MainPage)],                               debug=True) 

Unfortunately it doesn't work either in local or when I try to upload the new configuration to the Google App Engine. ( I get always the same mistake).

I may understand the problem in my machine ( I have both Python 2.5 and 2.7 ) on a Windows XP, but not when I upload.

This is the error:

2012-05-04 13:02:07 Running command: "[u'C:\Python25\python2.5.exe', '-u', 'C:\Archivos >de programa\Google\google_appengine\appcfg.py', '--no_cookies', u'[email protected]', '--passin', 'update', 'C:\Documents and Settings\SSanjuan\Mis documentos\Dropbox\Dropbox\Python\SpareParts']" Error parsing yaml file: Invalid object: threadsafe cannot be enabled with CGI handler: main.py in "C:\Documents and Settings\SSanjuan\Mis documentos\Dropbox\Dropbox\Python\SpareParts\app.yaml", line 27, column 1 2012-05-04 13:02:31 (Process exited with code 1)

Answer 1

Use main.application instead of main.py in your app.yaml. You need the former in order to set threadsafe to true.