Regular expression syntax, was Re: pylint, was Re: pygame - importing GL - very bad...

[Peter Otten]

someone wrote:

> On 01/03/2013 10:00 AM, Peter Otten wrote:
>> Terry Reedy wrote:
>>
>>>> [a-z_][a-z0-9_]{2,30}$) - so I suppose it wants this name to end with
>>>> [an
>>>> underscore ?
>>>
>>> No, it allows underscores. As I read that re, 'rx', etc, do match. They
>>
>> No, it's one leading letter or underscore [a-z_] plus at least two
>> letters, underscores or digits [a-z0-9_]{2,30}
> 
> Ah, [a-z0-9_]{2,30} means there should be at least two characters and
> maximum 30 characters here ?

Yes. See 

http://docs.python.org/2/library/re.html#regular-expression-syntax