Update imp to importlib for py3

Author: Joseph Curtis

docs/other/auto2to3.py

@@ -19,7 +19,11 @@
 import argparse
 import os
 import sys
-import imp
+# imp was deprecated in python 3.6
+if sys.version_info >= (3, 6):
+    import importlib as imp
+else:
+    import imp
 import runpy
 from io import StringIO
 from pkgutil import ImpImporter, ImpLoader

src/future/backports/test/support.py

@@ -28,7 +28,11 @@
 # import collections.abc    # not present on Py2.7
 import re
 import subprocess
-import imp
+# imp was deprecated in python 3.6
+if sys.version_info >= (3, 6):
+    import importlib as imp
+else:
+    import imp
 import time
 try:
     import sysconfig

src/future/standard_library/__init__.py

@@ -62,7 +62,11 @@
 
 import sys
 import logging
-import imp
+# imp was deprecated in python 3.6
+if sys.version_info >= (3, 6):
+    import importlib as imp
+else:
+    import imp
 import contextlib
 import types
 import copy

src/past/builtins/misc.py

@@ -42,7 +42,8 @@ def oct(number):
         return '0' + builtins.oct(number)[2:]
 
     raw_input = input
-    from imp import reload
+    # imp was deprecated in python 3.6
+    from importlib import reload
     unicode = str
     unichr = chr
     xrange = range

src/past/translation/__init__.py

@@ -32,11 +32,15 @@
 Inspired by and based on ``uprefix`` by Vinay M. Sajip.
 """
 
-import imp
+import sys
+# imp was deprecated in python 3.6
+if sys.version_info >= (3, 6):
+    import importlib as imp
+else:
+    import imp
 import logging
 import marshal
 import os
-import sys
 import copy
 from lib2to3.pgen2.parse import ParseError
 from lib2to3.refactor import RefactoringTool

tests/test_future/test_standard_library.py

@@ -447,7 +447,11 @@ def test_reload(self):
         """
         reload has been moved to the imp module
         """
-        import imp
+        # imp was deprecated in python 3.6
+        if sys.version_info >= (3, 6):
+            import importlib as imp
+        else:
+            import imp
         imp.reload(imp)
         self.assertTrue(True)