Python parse comma-separated number into int

Question

How would I parse the string 1,000,000 (one million) into it’s integer value in Python?

Asked By: roryf

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Answer 1

>>> a = '1,000,000'
>>> int(a.replace(',', ''))
1000000
>>>

Answered By: joaquin

Answer 2

Replace the ‘,’ with ” and then cast the whole thing to an integer.

>>> int('1,000,000'.replace(',',''))
1000000

Answered By: jathanism

Answer 3

There’s also a simple way to do this that should handle internationalization issues as well:

>>> import locale
>>> locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')
'en_US.UTF-8'
>>> locale.atoi("1,000,000")
1000000
>>>

I found that I have to explicitly set the locale first as above, otherwise it doesn’t work for me and I end up with an ugly traceback instead:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.6/locale.py", line 296, in atoi
    return atof(str, int)
  File "/usr/lib/python2.6/locale.py", line 292, in atof
    return func(string)
ValueError: invalid literal for int() with base 10: '1,000,000'

Answered By: Khorkrak

Python parse comma-separated number into int

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