fix deprecation warnings when using ABC from collections module

Lib/fontTools/misc/loggingTools.py

@@ -8,7 +8,10 @@ import sys
 import logging
 import timeit
 from functools import wraps
-import collections
+try:
+	from collections.abc import Mapping, Callable
+except ImportError:  # python < 3.3
+	from collections import Mapping, Callable
 import warnings
 
 try:
@@ -64,7 +67,7 @@ class LevelFormatter(logging.Formatter):
 		if isinstance(fmt, basestring):
 			default_format = fmt
 			custom_formats = {}
-		elif isinstance(fmt, collections.Mapping):
+		elif isinstance(fmt, Mapping):
 			custom_formats = dict(fmt)
 			default_format = custom_formats.pop("*", None)
 		else:
@@ -360,7 +363,7 @@ class Timer(object):
 		Timer instance, referencing the same logger.
 		A 'level' keyword can also be passed to override self.level.
 		"""
-		if isinstance(func_or_msg, collections.Callable):
+		if isinstance(func_or_msg, Callable):
 			func = func_or_msg
 			# use the function name when no explicit 'msg' is provided
 			if not self.msg:

Lib/fontTools/misc/psLib.py

@@ -3,7 +3,10 @@ from fontTools.misc.py23 import *
 from fontTools.misc import eexec
 from .psOperators import *
 import re
-import collections
+try:
+	from collections.abc import Callable
+except ImportError:  # python < 3.3
+	from collections import Callable
 from string import whitespace
 import logging
 
@@ -169,7 +172,7 @@ class PSInterpreter(PSOperators):
 	def suckoperators(self, systemdict, klass):
 		for name in dir(klass):
 			attr = getattr(self, name)
-			if isinstance(attr, collections.Callable) and name[:3] == 'ps_':
+			if isinstance(attr, Callable) and name[:3] == 'ps_':
 				name = name[3:]
 				systemdict[name] = ps_operator(name, attr)
 		for baseclass in klass.__bases__:

Lib/fontTools/misc/testTools.py

@@ -2,7 +2,10 @@
 
 from __future__ import (print_function, division, absolute_import,
                         unicode_literals)
-import collections
+try:
+    from collections.abc import Iterable
+except ImportError:  # python < 3.3
+    from collections import Iterable
 import os
 import shutil
 import sys
@@ -29,7 +32,7 @@ def parseXML(xmlSnippet):
         xml += xmlSnippet
     elif isinstance(xmlSnippet, unicode):
         xml += tobytes(xmlSnippet, 'utf-8')
-    elif isinstance(xmlSnippet, collections.Iterable):
+    elif isinstance(xmlSnippet, Iterable):
         xml += b"".join(tobytes(s, 'utf-8') for s in xmlSnippet)
     else:
         raise TypeError("expected string or sequence of strings; found %r"