Bruno Desthuilliers wrote:
> could ildg a écrit :
> 
>> Thank you.
>> But what should I do if there are more than one hello and I only want
>> to extract what's before the first "hello". 
> 
> 
> Read The Fine Manual ?-)
> 
> 
>> For example, the raw
>> string is "hi, how are you? hello I'm fine, thank you hello. that's it
>> hello", I want to extract all the stuff before the first hello?
> 
> 
> re.findall(r'^(.*)hello', your_string_full_of_hellos)

Nice try, but it needs a little refinement to do what the OP asked for:

 >>> import re
 >>> h = "hi g'day hello hello hello"
 >>> re.findall(r'^(.*)hello', h)
["hi g'day hello hello "]
 >>> re.findall(r'^(.*?)hello', h)
["hi g'day "]
 >>> re.findall(r'^(.*?)hello', h)[0]
"hi g'day "
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