[pypy-commit] pypy utf8-unicode2: Use an iterator here so its O(n)

[waedt]

Author: Tyler Wade <wayedt at gmail.com>
Branch: utf8-unicode2
Changeset: r73351:4c43dd3a4c7b
Date: 2014-08-29 01:23 -0500
http://bitbucket.org/pypy/pypy/changeset/4c43dd3a4c7b/

Log:	Use an iterator here so its O(n)

diff --git a/pypy/module/_codecs/interp_codecs.py b/pypy/module/_codecs/interp_codecs.py
--- a/pypy/module/_codecs/interp_codecs.py
+++ b/pypy/module/_codecs/interp_codecs.py
@@ -625,9 +625,10 @@
 def charmap_build(space, chars):
     # XXX CPython sometimes uses a three-level trie
     w_charmap = space.newdict()
-    for num in range(len(chars)):
-        elem = chars[num]
+    num = 0
+    for elem in chars:
         space.setitem(w_charmap, space.newint(utf8ord(elem)), space.newint(num))
+        num += 1
     return w_charmap
 
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