Multiline String Python Regex

Question

I am trying to get the last number from this string from each line but my code is only able to get '25' instead. I want to get 15, 10, 5, 5, and 25.

import re

string = """

1073811-S0-A M3S FRT SUBFRAME MNT FRT INR LH 15
1073851-S0-A M3S REAR QUARTER INNER LH 10 
1080023-S0-C M3 ASY, COWL SIDE, LH 5 
1080024-S0-C M3 ASY, COWL SIDE, RH 5
1080473-S0-B M3 ASY, SHOTGUN TOWER, LH 25
"""

qty = re.findall(r'\d{1,3}$', string)

print(qty)

You're looking for [`re.MULTILINE`](https://docs.python.org/3.8/library/re.html#re.MULTILINE) — ForceBru, Jan 19 '20 at 17:12
Thank you Wiktor Stribiżew! Genius! Been working and Googling for hours! — Dajuice911, Jan 19 '20 at 17:13
@ForceBru - thank you as well. I will look more into this then. Previously i tried this but received errors so was thinking it was not it. — Dajuice911, Jan 19 '20 at 17:21
This looks like a duplicate of https://stackoverflow.com/q/587345/11301900. — AMC, Jan 19 '20 at 17:47

Laurent LAPORTE · Answer 1 · 2020-01-19T17:18:06.280

2

You can use the flag re.MULTILINE:

qty = re.findall(r'\d{1,3}$', string, flags=re.MULTILINE)

You get: ['15', '5', '25']

But some line also ends with trailing white spaces. So, you can use a group with a optional white space:

qty = re.findall(r'(\d{1,3})\s*$', string, flags=re.MULTILINE)

You get: ['15', '10', '5', '5', '25'].

You can also search the numbers which are followed by an optional white space and the end a string. You can do that with a positive lookhead:

qty = re.findall(r'\d{1,3}(?=\s*$)', string, flags=re.MULTILINE)

edited Jan 19 '20 at 17:18

answered Jan 19 '20 at 17:12

Laurent LAPORTE

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@Dajuice911, you are welcome. You can accept this answer. – Laurent LAPORTE Jan 19 '20 at 20:02

score 0 · Answer 2 · answered Jan 19 '20 at 17:31

import re
str="""1073811-S0-A M3S FRT SUBFRAME MNT FRT INR LH 15
1073851-S0-A M3S REAR QUARTER INNER LH 10 
1080023-S0-C M3 ASY, COWL SIDE, LH 5 
1080024-S0-C M3 ASY, COWL SIDE, RH 5
1080473-S0-B M3 ASY, SHOTGUN TOWER, LH 25"""
pattern = re.compile(r'(?m)(\d+)\s*$')
match = pattern.findall(str)
for i in match:
  print(i)

output is: 15 10 5 5 25

Multiline String Python Regex

2 Answers2