import unicodedata


def is_number(s):
    try:
        float(s)
        return True
    except ValueError:
        pass
    try:
        unicodedata.numeric(s)
        return True
    except (TypeError, ValueError):
        pass
    return False

for codepoint in range(2**16):
    chr_ = chr(codepoint)
    if chr_.isnumeric() and not chr_.isdigit():
        print(u'{:04x}: {} ({})'.format(codepoint, chr_,
              unicodedata.name(chr_, 'UNNAMED')))


# Testing as a str
print(is_number('foo'))
print(is_number('1'))
print(is_number('1.3'))
print(is_number('-1.37'))
print(is_number('1e3'))
# Testing Unicode
# 5 in Arabic
print(is_number('٥'))
# 2 in Thai
print(is_number('๒'))
# 4 in Japanese
print(is_number('四'))
# Copyright Symbol
print(is_number('©'))
# 44 in Japanese
print(is_number('四四'))