On 2007-08-02, at 13:43, [EMAIL PROTECTED] wrote: > I know I can use a variable in regular expressions. I want to use a > regex to find something based on the beginning of the string. I am > using yesterday's date to find all of my data from yesterday. > Yesterday's date is 20070731, and assigned to the variable > "yesterday_date". I want to loop thru a directory and find all of the > yesterday's data ONLY IF the feature class has the date at the > BEGINNING of the filename. >
> ... > I don't want the one's that start with "Copy". I can't figure out the > syntax of inserting the "^" into the regex. I've tried all of the > following, with no luck: > > re.compile(^yesterday_date) > re.compile(r'^yesterday_date') > re.compile(r'^[yesterday_date]') > re.compile(r'[^yesterday_date]') The first one is a syntax error (^ outside a string means the xor- operation). The rest are just strings containing the _string_ 'yesterday_date' and not the value of the variable. So you need to do some string formatting(* search_str = '^%s' % yesterday_date # I'm assuming yesterday_date is a string. re.compile(search_str) *) http://docs.python.org/lib/typesseq-strings.html -- [ [EMAIL PROTECTED] <*> Antti Rasinen ] This drone-vessel speaks with the voice and authority of the Ur-Quan. -- http://mail.python.org/mailman/listinfo/python-list
