CODEWITHSUNDEEP
pythonregex
Simone
Simone

Reputation: 19

How to delete a sentence after the pound sign (#) in a sentence in python

I would like to delete a sentence that is after a hash found in a sentence. This process should happen on all lines that have pound signs, for example:

abcde#efg hijk

aaaabbbcc

ghij#kloa.bcd

It will look like this

abcde#

aaaabbbcc

ghij#

I made the code below with re.findall, but when it finds an empty space, it does not delete the rest, look:

text = 'abcde#efg hijk \n\n ghij#kloa.bcd'    
result=re.findall(r'#(\w+.\w+\s+)', text)  
>>['efg hijk \n\n ']

Does anyone have any ideas?

Upvotes: 0

Views: 59

Answers (1)

ggorlen
ggorlen

Reputation: 57446

I'd use 

re.findall(r'^.*?(?:$|#)', text, re.M)

to match all of the substrings you want to keep and

re.findall(r'(?<=#).*$', text, re.M)

to match all of the substrings you want to reject.

Both use the MULTILINE flag and end-of-line $ or # characters as boundaries.

Use caution when there are multiple #s in a line.

Upvotes: 1

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