Le Tue, 28 Apr 2009 22:51:09 +0000 (GMT), Emilio Casbas <ecasb...@yahoo.es> s'exprima ainsi:
> > Hi, > > following the example from > http://docs.python.org/3.0/howto/regex.html > > If I execute the following code on the python shell (3.1a1): > > >>> import re > >>> p = re.compile('ab*') > >>> p > > I get the msg: > <_sre.SRE_Pattern object at 0x013A3440> So do I using python 1.5.2. Slightly better than the version below (at least they tell you you got a %?$£^pattern). > instead of the msg from the example: > <re.RegexObject instance at 80b4150> I guess this pure question of vocabulary. At a remote point in time the regex package has changed, especially the name of the type for patterns -- and the doc did not follow. > Why I get an SRE_Patterns object instead of a RegexObject instance? Actually, there are loads of lexical issues in the world of programming ;-) What you need to know is, IMO (comments welcome): (1) A pure string is used to describe how source text should be structured. (2) This string is then used to construct an object able to check that. There is a high confusion with terms like 'format', 'pattern', 'rule', 'expression'; and 'regex' itself is used for every other notion, including the *language* used to write strings in (1). I personly use 'pattern' for objects (2) -- but it's far to be a norm. When parsing with regexes, then 'RegexObject' can be a synonym for 'pattern'. On the other hand, you will find all other words, even 'pattern', used in sense (1). > Regards > Emilio Denis ------ la vita e estrany _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
