Python regular expression for finding string in between the text file

Question

I'm currently working on python code to extract a specific strings on a text file between ' '. Here's the code I'm working on:

import re
pattern = "(\w+'*',)"
with open('C:\Documents and Settings\Ash\Desktop\strcount.txt', "r") as text:
    for line in text:
        print re.findall(pattern, line)

and the list of strings in the text file

('FLBC8U', 24)
('cHvQuW', 24)
('7FDm@', 24)
('15ii?', 24)
('H!oDe', 24)
('RB6#U', 24)
('uAmer', 24)
('6NmDJ', 24)
('d-MS1', 24)
('Ejf&B', 24)

I only wanted to take the string in the middle of ' ' single quotation mark before the comma , so the number and the bracket is ignored

possible duplicate of Python Regex to find a string in double quotes within a string or Regex for quoted string with escaping quotes — Robin
– Robin, Commented Jun 2, 2014 at 9:24

Padraic Cunningham · Accepted Answer · 2014-06-02 09:25:27Z

2

s = "'FLBC8U', 24"

print re.findall("'([^']*)'", s)[0]
FLBC8U

answered Jun 2, 2014 at 9:25

Padraic Cunningham

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Comments

Ray · Accepted Answer · 2014-06-02 09:24:18Z

0

My regex:

(?<=\').*(?=\',)

You can check the result here.

By the way, this site is quite helpful for playing with regex in python.

answered Jun 2, 2014 at 9:24

Ray

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l'L'l · Accepted Answer · 2014-06-02 09:25:21Z

0

Try using this pattern:

   \(\'(.*)\',.+\)

example: http://regex101.com/r/aZ6tU6

answered Jun 2, 2014 at 9:25

l'L'l

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Burhan Khalid · Accepted Answer · 2014-06-02 09:27:34Z

0

If the strings are simply in a line, you can just do this:

>>> "('FLBC8U', 24)"[1:-1].split(',')[0]
"'FLBC8U'"

answered Jun 2, 2014 at 9:27

Burhan Khalid

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Dhrubajyoti Gogoi · Accepted Answer · 2014-06-02 09:44:08Z

0

This should solve it for you:

(?<=\(')((?!').)*(?=')

Explanation here

edited Jun 2, 2014 at 9:44

answered Jun 2, 2014 at 9:22

Dhrubajyoti Gogoi

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1 Comment

furins Over a year ago

please add some details on why your proposed solution answer the given question. One-line-like answers are likely to be deleted in the future.

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