Import modules into Python Calculate fields

[JorgeVidinha]

Hello all,
Any chance of importing modules like re (regex) into Calculate fields, if not could you please send some your ideias for working with regegex module to calculate some string fields.
Many thanks
Jorge Vidinha

[DanPatterson_Retired]

just use a code block and import re into a def
http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//005s0000002m000000