[PATCH] D56341: [python] Make the collections import future-proof

[Phabricator via Phabricator via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rC350467: [python] Make the collections import future-proof 
(authored by serge_sans_paille, committed by ).

Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56341/new/

https://reviews.llvm.org/D56341

Files:
  bindings/python/clang/cindex.py


Index: bindings/python/clang/cindex.py
===================================================================
--- bindings/python/clang/cindex.py
+++ bindings/python/clang/cindex.py
@@ -64,7 +64,6 @@
 # o implement additional SourceLocation, SourceRange, and File methods.
 
 from ctypes import *
-import collections
 
 import clang.enumerations
 
@@ -123,6 +122,14 @@
     def b(x):
         return x
 
+# Importing ABC-s directly from collections is deprecated since Python 3.7,
+# will stop working in Python 3.8.
+# See: https://docs.python.org/dev/whatsnew/3.7.html#id3
+if sys.version_info[:2] >= (3, 7):
+    from collections import abc as collections_abc
+else:
+    import collections as collections_abc
+
 # We only support PathLike objects on Python version with os.fspath present
 # to be consistent with the Python standard library. On older Python versions
 # we only support strings and we have dummy fspath to just pass them through.
@@ -2181,7 +2188,7 @@
         The returned object is iterable and indexable. Each item in the
         container is a Type instance.
         """
-        class ArgumentsIterator(collections.Sequence):
+        class ArgumentsIterator(collections_abc.Sequence):
             def __init__(self, parent):
                 self.parent = parent
                 self.length = None



Index: bindings/python/clang/cindex.py
===================================================================
--- bindings/python/clang/cindex.py
+++ bindings/python/clang/cindex.py
@@ -64,7 +64,6 @@
 # o implement additional SourceLocation, SourceRange, and File methods.
 
 from ctypes import *
-import collections
 
 import clang.enumerations
 
@@ -123,6 +122,14 @@
     def b(x):
         return x
 
+# Importing ABC-s directly from collections is deprecated since Python 3.7,
+# will stop working in Python 3.8.
+# See: https://docs.python.org/dev/whatsnew/3.7.html#id3
+if sys.version_info[:2] >= (3, 7):
+    from collections import abc as collections_abc
+else:
+    import collections as collections_abc
+
 # We only support PathLike objects on Python version with os.fspath present
 # to be consistent with the Python standard library. On older Python versions
 # we only support strings and we have dummy fspath to just pass them through.
@@ -2181,7 +2188,7 @@
         The returned object is iterable and indexable. Each item in the
         container is a Type instance.
         """
-        class ArgumentsIterator(collections.Sequence):
+        class ArgumentsIterator(collections_abc.Sequence):
             def __init__(self, parent):
                 self.parent = parent
                 self.length = None

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