Capitalizes your text to make it look professional.

fixhg.py

#!/usr/bin/env python

import re
import sys

def remove_double_space_dots(s):
    while "  " in s:
        s = s.replace("  ", " ")
    while ".." in s:
        s = s.replace("..", ".")
    return s

def capitalize_first_in_sentence(s):
    def to_upper(match):
        return match.group(1) + match.group(2).upper()

    s = re.sub(r"(^\s*)(\w)", to_upper, s)  # start of the text
    s = re.sub(r"(\n\n\s*)(\w)", to_upper, s)  # new paragraph
    s = re.sub(r"([\.\?\!]\s*)(\w)", to_upper, s)  # new sentence
    return s

def capitalize_i(s):
    return re.sub(r"(\s)i([\'\s])", r"\1I\2", s)  # "I am" and "I'm"

s = "".join(sys.stdin.readlines())
s = remove_double_space_dots(s)
s = capitalize_first_in_sentence(s)
s = capitalize_i(s)
print(s)