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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_remote_user(request):
 """Parse basic HTTP_AUTHORIZATION and return user name """

    if 'HTTP_AUTHORIZATION' not in request.environ:
        return
    authorization = request.environ['HTTP_AUTHORIZATION']
    try:
        authmeth, auth = authorization.split(' ', 1)
    except ValueError:  # not enough values to unpack
        return
    if authmeth.lower() != 'basic':
        return
    try:
        auth = base64.b64decode(auth.strip().encode('latin1')).decode('latin1')
    except (binascii.Error, TypeError):  # can't decode
        return
    try:
        login, password = auth.split(':', 1)
    except ValueError:  # not enough values to unpack
        return
    return login, password