Question

I get an error in my python app on GAE (in my localhost) saying:

variable xyz in line 23 expects string.... bool given — SUPPOSE

Now, to fix that error i remove the entire line 23 and, thus, there is no variable called xyz in my script anymore. (I used ctrl+F to find xyz and i ensured there is no xyz in my script).

Then i hit refresh on the browser and even then i get the exactly same error again.

variable xyz in line 23 expects string.... bool given — meaning the code changes from my editor have not taken any effect in the GAE runtime, i suppose.

I refreshed the page several times… I gave the chrome browser some time… I refreshed the page again… no luck. Then I noticed that the code changes took effect ONLY WHEN I stopped and re-ran the python app from the GAE launcher.

Now, having to do this every time i updated the code is a pain. How do i fix this literal chaos? GAE just got updated on my Mac OS X 10.7.5 a few days ago.

Answer 1

If you’re seeing this with 1.7.3 and not with 1.7.2, you’re likely running into http://code.google.com/p/googleappengine/issues/detail?id=8383

The proposed solution (although not a fix, i guess) as given in the link above is to edit the file at $(GAE_SDK_ROOT)/google/appengine/tools/dev_appserver.py. Open the file and find the procedure definition of def AreModuleFilesModified(self). Then inside that procedure definition, place this line self._dirty = True as the FIRST line after the docstring and BEFORE the for-loop begins.

Note that there are 2 dev_appserver.py files in GAE

1. $(GAE_SDK_ROOT)/dev_appserver.py
2. $(GAE_SDK_ROOT)/google/appengine/tools/dev_appserver.py

We want to edit the file no. 2 and not the file no. 1