Find Numbers In A String

numbers.py

# This finds positive, negative, and float numbers.
# They're added into a list by what was found first
# and then presented to the user.
# Let me know if you find any issues.

import re

# this prints ['0', '-10', '10.0', '10.999999999999999']
# which is what's expected :-)
the_string = "single 0 // negative -10 // float 10.0 // long float 10.999999999999999"
pattern = re.compile(r"(-?\d+(?:\.\d+)?)")

numbers_found = pattern.findall(the_string)

print(numbers_found)