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import re
s = 'fixed-string-123-456'
result = re.findall('(?<=fixed-string-)(\d+)-(.*)', s)
if result:
	print (result[0])

Runtime error #stdin #stdout #stderr 0.02s 28720KB

stdin

Standard input is empty

stdout

Standard output is empty

stderr

Traceback (most recent call last):
  File "./prog.py", line 5, in <module>
AttributeError: 'list' object has no attribute 'group'

https://ideone.com/4RRwff

language:

Python 3 (python 3.9.5)

created:

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secret

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