Author: Ronan Lamy <[email protected]>
Branch: py3.5
Changeset: r91907:75b45f45de1b
Date: 2017-07-16 16:22 +0200
http://bitbucket.org/pypy/pypy/changeset/75b45f45de1b/
Log: Improve performance of bytearray.extend(<bytes>)
diff --git a/pypy/objspace/std/bytesobject.py b/pypy/objspace/std/bytesobject.py
--- a/pypy/objspace/std/bytesobject.py
+++ b/pypy/objspace/std/bytesobject.py
@@ -748,8 +748,11 @@
if space.isinstance_w(w_source, space.w_unicode):
raise oefmt(space.w_TypeError,
"cannot convert a (unicode) str object to bytes")
+ return _from_byte_sequence(space, w_source)
- # sequence of bytes
+
+def _from_byte_sequence(space, w_source):
+ # Split off in a separate function for the JIT's benefit
w_result = space.appexec([w_source], """(seq):
result = bytearray()
for i in seq:
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