Remove and replace compat.FileType

Author: Harmon758

git/compat.py

@@ -33,9 +33,6 @@
 defenc = sys.getfilesystemencoding()
 
 if PY3:
-    import io
-    FileType = io.IOBase
-
     def byte_ord(b):
         return b
 
@@ -49,9 +46,6 @@ def mviter(d):
     unicode = str
     binary_type = bytes
 else:
-    FileType = file  # @UndefinedVariable on PY3
-    # usually, this is just ascii, which might not enough for our encoding needs
-    # Unless it's set specifically, we override it to be utf-8
     if defenc == 'ascii':
         defenc = 'utf-8'
     byte_ord = ord

git/config.py

@@ -9,14 +9,14 @@
 import abc
 from functools import wraps
 import inspect
+from io import IOBase
 import logging
 import os
 import re
 from collections import OrderedDict
 
 from git.compat import (
     string_types,
-    FileType,
     defenc,
     force_text,
     with_metaclass,
@@ -581,7 +581,7 @@ def write(self):
         fp = self._file_or_files
 
         # we have a physical file on disk, so get a lock
-        is_file_lock = isinstance(fp, string_types + (FileType, ))
+        is_file_lock = isinstance(fp, string_types + (IOBase, ))
         if is_file_lock:
             self._lock._obtain_lock()
         if not hasattr(fp, "seek"):