Google App Engine - differences between the development server and the production server

Question

Hi all, I would like to ask what are the differences between the development server and the production server. To be more specific, I give an example, I can run my application in the development server but when deploy to the production server, there is an error

500 Internal Server Error

So, can you please give me some advices?

08-20 03:50PM 46.168 / 500 34ms 61cpu_ms 0kb Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.6 Safari/532.0,gzip(gfe)

93.35.147.151 - - [20/Aug/2009:15:50:46 -0700] "GET / HTTP/1.1" 500 0 - "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.6 Safari/532.0,gzip(gfe)" "3-0.latest.foo.appspot.com"

E 08-20 03:50PM 46.199

<type 'exceptions.ImportError'>: No module named tools
Traceback (most recent call last):
   File "/base/data/home/apps/foo/3-0.335761381164787271/homepage.py", line 1, in <module>
    import models
  File "/base/data/home/apps/foo/3-0.335761381164787271/models.py", line 2, in <module>
    from google.appengine.tools import bulkloader

It is so strange that it gave me the message, "no module named tools", as I copied the code of uploading data from google In the development server, it works :-s

Answer 1

Since I can't comment on the question itself...

Can you give more information? Specifically, are you running Python or Java on GAE? What is the full log entry for that error?

Answer 2

Errors that occur in production are logged to the Admin Console. Log in to your admin console, select 'Logs', and look for the request that's causing the error. The stacktrace and all other relevant details will be there.