drive-issue-535 contrast with other langs

excludes.py

#!/usr/bin/env python3

import re

reComp = re.compile('^\.(?!(mydotfile1|mydotfile2))$', re.UNICODE)

def main():
  tests = ['.git', '.mydotfile', '.', '.mydotfile1', '.mydotfile2', 'other']
  regexs = dict(provided=reComp)
  for key, regex in regexs.items():
    print("key \"%s\""%(key))
    for test in tests:
      print("query: \"%s\": "%(test), end="")
      if regex.match(test):
        print("\033[92mmatches\033[00m")
      else:
        print("\033[91mdoesn't match\033[00m")

    print("**done**\n")

if __name__ == '__main__':
  main()

output.md

$ chmod +x excludes.py && ./excludes.py 
key "provided"
query: ".git": doesn't match
query: ".mydotfile": doesn't match
query: ".": matches
query: ".mydotfile1": doesn't match
query: ".mydotfile2": doesn't match
query: "other": doesn't match
**done**