I just fresh installed web2py on ubuntu 12.04, cannot find modules?

[Kenneth]

This seems odd to me.

I just moved my server and ran the ubuntu script to install web2py

I cannot import simplejson for some reason. (I ran it on python -S web2py.py as well)

anyone had this problem before? Let me know! Otherwise, I have to import directly from gluon.

[Kenneth]

Ubuntue is 12.04 64bit server, fresh installed. 

This is what I received after "import simplejson"

web2py™	Version 2.4.6-stable+timestamp.2013.04.06.17.37.38
Python	Python 2.7.3: /usr/bin/python (prefix: /usr)

Traceback

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

Traceback (most recent call last): File "/home/www-data/web2py/gluon/restricted.py", line 212, in restricted exec ccode in environment File "/home/www-data/web2py/applications/welcome/controllers/default.py", line 78, in <module> File "/home/www-data/web2py/gluon/globals.py", line 194, in <lambda> self._caller = lambda f: f() File "/home/www-data/web2py/applications/welcome/controllers/default.py", line 22, in index import simplejson File "/home/www-data/web2py/gluon/custom_import.py", line 81, in custom_importer raise ImportError, 'Cannot import module %s' % str(e) ImportError: Cannot import module 'simplejson'

[Anthony]

It's contrib.simplejson.

[Kenny Chung]

Hi Anthony,

So, should I just import "contrib.simplejson"? Is this recently changed?

Ken

It's contrib.simplejson.

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[Anthony]

I think that's where it has always been.

[Kenny Chung]

Ouch. I must have used old version of web2py than.

I always imported simplejson as "import simplejson as json" 

I totally forgot to replicate my setup before terminating my linode server.

Ken

[Alan Etkin]

Ouch. I must have used old version of web2py than.

I always imported simplejson as "import simplejson as json" 

I totally forgot to replicate my setup before terminating my linode server.

Maybe you had simplejson installed in your old o.s., so you could simply import it directly.

You could do this instead:

>>> from serializers import json_parser as json

It tries json stdlib, then an installed simplejson, and as fallback the module included in contrib.

[Niphlod]

a little correction..... serializers.py in trunk now "inverts" the order of imports
it tries simplejson (cause newer versions of simplejson as an external module are always faster than the standard json shipped with python from 2.6 on)
then uses json
then uses contrib.simplejson
However, if you want to be "uber-compatible" it's best to use always what Alan suggested (using serializers) so you can "lean" on the "smart-import" that it does by default.

[Kenny Chung]

Great to know! Thank you