UnicodeDecodeError exception occurs when .env file contains Non-ASCII characters on Windows #175

Traceback (most recent call last):
  File "c:\python27\lib\runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "c:\python27\lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "C:\Python27\Scripts\flask.exe\__main__.py", line 9, in <module>
  File "c:\python27\lib\site-packages\flask\cli.py", line 894, in main
    cli.main(args=args, prog_name=name)
  File "c:\python27\lib\site-packages\flask\cli.py", line 548, in main
    load_dotenv()
  File "c:\python27\lib\site-packages\flask\cli.py", line 608, in load_dotenv
    dotenv.load_dotenv(path)
  File "c:\python27\lib\site-packages\dotenv\main.py", line 309, in load_dotenv
    return DotEnv(f, verbose=verbose).set_as_environment_variables(override=override)
  File "c:\python27\lib\site-packages\dotenv\main.py", line 129, in set_as_environment_variables
    for k, v in self.dict().items():
  File "c:\python27\lib\site-packages\dotenv\main.py", line 115, in dict
    values = OrderedDict(self.parse())
  File "c:\python27\lib\collections.py", line 69, in __init__
    self.__update(*args, **kwds)
  File "c:\python27\lib\_abcoll.py", line 571, in update
    for key, value in other:
  File "c:\python27\lib\site-packages\dotenv\main.py", line 121, in parse
    for mapping in parse_stream(stream):
  File "c:\python27\lib\site-packages\dotenv\main.py", line 83, in parse_stream
    string = stream.read()
UnicodeDecodeError: 'gbk' codec can't decode bytes in position 25-26: illegal multibyte sequence