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Editorial Team
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Asked: 2026-05-13T13:12:54+00:00

In the string module of the standard library, string.ascii_letters ## Same as string.ascii_lowercase +

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In the “string” module of the standard library, 

string.ascii_letters ## Same as string.ascii_lowercase + string.ascii_uppercase

is

'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

Is there a similar constant which would include everything that is considered a letter in unicode?

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1 Answer

  1. Editorial Team

    You can construct your own constant of Unicode upper and lower case letters with:

    import unicodedata as ud
all_unicode = ''.join(unichr(i) for i in xrange(65536))
unicode_letters = ''.join(c for c in all_unicode
                          if ud.category(c)=='Lu' or ud.category(c)=='Ll')

    This makes a string 2153 characters long (narrow Unicode Python build). For code like letter in unicode_letters it would be faster to use a set instead:

    unicode_letters = set(unicode_letters)
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