# HG changeset patch
# User Brett Cannon <brett@python.org>
# Date 1426260892 14400
# Node ID 8d7bf729a4db5f9386b947344df1deca5c37e58d
# Parent  f3c430afa59888273201c715123649ee6ec48b3a
hglib: use io.BytesIO when available (issue4520)

Since cStringIO.StringIO is not available in Python 3, try to use
io.BytesIO when available.

diff -r f3c430afa598 -r 8d7bf729a4db hglib/client.py
--- a/hglib/client.py	Fri Mar 13 11:31:54 2015 -0400
+++ b/hglib/client.py	Fri Mar 13 11:34:52 2015 -0400
@@ -1,5 +1,8 @@
 import subprocess, os, struct, re, datetime
-from cStringIO import StringIO as BytesIO
+try:
+    from io import BytesIO
+except ImportError:
+    from cStringIO import StringIO as BytesIO
 import hglib, error, util, templates, merge, context
 
 from util import b, cmdbuilder
diff -r f3c430afa598 -r 8d7bf729a4db hglib/util.py
--- a/hglib/util.py	Fri Mar 13 11:31:54 2015 -0400
+++ b/hglib/util.py	Fri Mar 13 11:34:52 2015 -0400
@@ -1,5 +1,8 @@
 import itertools, error, os, subprocess, sys
-from cStringIO import StringIO as BytesIO
+try:
+    from io import BytesIO
+except ImportError:
+    from cStringIO import StringIO as BytesIO
 
 if sys.version_info[0] > 2:
     def b(s):
diff -r f3c430afa598 -r 8d7bf729a4db tests/test-import.py
--- a/tests/test-import.py	Fri Mar 13 11:31:54 2015 -0400
+++ b/tests/test-import.py	Fri Mar 13 11:34:52 2015 -0400
@@ -1,5 +1,8 @@
 import common, os
-from cStringIO import StringIO as BytesIO
+try:
+    from io import BytesIO
+except ImportError:
+    from cStringIO import StringIO as BytesIO
 import hglib
 from hglib.util import b