Pre-generated sets of Unicode code points
uniset is a module containing frozensets of Unicode code points (characters).
The module includes a set for all Unicode categories and subcategories except the main category "C" (other) and its subcategories "Co" (private use) and "Cn" (not assigned).
Example:
import uniset
# The letter "A" is in category "L" (letters)
assert "A" in uniset.L
# The letter "A" is also in category "Lu" (uppercase letters)
assert "A" in uniset.Luuniset.WHITESPACE contains all Unicode whitespace characters.
uniset.WHITESPACE is a union of ASCII whitespace characters and the Unicode category "Zs".
import uniset
assert " " in uniset.WHITESPACEuniset.PUNCTUATION contains all Unicode punctuation letters.
uniset.PUNCTUATION is a union of ASCII punctuation characters and the Unicode category "P".
import uniset
assert "." in uniset.PUNCTUATIONunicategories also provides access to Unicode categories.
The implementation is based on "range groups" and iterators, and should be faster and more memory efficient than uniset for inclusion checks.
If you need the frozenset API (unions, intersections, etc.), or the sets beyond Unicode categories (whitespace, punctuation), use uniset.
Otherwise unicategories is the better option.