Resolved: regular expression with group to a string including ( ) and dash

In this post, we will see how to resolve regular expression with group to a string including ( ) and dash

Question:

I am trying to use regular expression to find number. But I never succeed. Can anyone help me with it?

import re
item='800-850(0.2)'
find_list=re.findall(r'(\d+)\-(\d+)\((\d+)\)$',item)
print(find_list)
[]

The above return empty [], what I wanted is [800,850,0.2]. I am using () to capture group. do I use ( and ) to indicate ( or ) ? and use – to indicate –
Thanks for your help.

Best Answer:

You also need to accept the dot (.) for the last number, which is not included by \d (equivalent to [0-9]).

re.findall(r'(\d+)-(\d+)\(([\d.]+)\)$',item)

To make sure the dot is between two consecutive groups of digits, use (\d+\.\d+).

If you have better answer, please add a comment about this, thank you!

Source: Stackoverflow.com

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