"illegal seek" - error

[Droid]

I am getting an "illegal seek" error on a MacBook Air Lion OS. Did not
happen with everything the same but on Windows.

Anyone know anything about this error? Here is the log:

ERROR 2011-10-03 07:40:28,943 dev_appserver.py:4200] Exception
encountered handling request
Traceback (most recent call last):
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/dev_appserver.py", line 4143, in _HandleRequest
self._Dispatch(dispatcher, self.rfile, outfile, env_dict)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/dev_appserver.py", line 4049, in _Dispatch
base_env_dict=env_dict)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/dev_appserver.py", line 616, in Dispatch
base_env_dict=base_env_dict)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/dev_appserver.py", line 3120, in Dispatch
self._module_dict)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/dev_appserver.py", line 3024, in ExecuteCGI
reset_modules = exec_script(handler_path, cgi_path, hook)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/dev_appserver.py", line 2896, in
ExecuteOrImportScript
sys.stdout.seek(0)
IOError: [Errno 29] Illegal seek

[Joshua Smith]

Have you tried deleting and re-installing the launcher? This could be as simple as having run out of disk space when you installed, or a permissions issue.

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[Droid]

its probably a permissions error- but which folder needs which
permission?
I have not seen any instructions about that. I just clicked the GAE
dmg file.

Bill

[Droid]

Not disk space error - its a new Mac. Permissions? Not sure, no idea
where to start with that.
At present I am doing App Engine stuff on an old Windows machine.

[Droid]

I am answer my own question.
I found this (not-nice line for MACs) line in my py code:

reload(sys); sys.setdefaultencoding('utf-8') # DO NOT USE ON A MAC!!

For some reason this reload is OK on Windows and the GAE but not on
the Mac local version - errors it out.

I do not know why MacBook Airs (Lion) do not like this.

I can understand why I got no replies now. ha ha!

Droid