tree 7326bdf06fc7e8c53c668e3e23b4bf764cba3194
parent 7832cd6141116cc64f6304f1107631e28cd7ee08
author Raymond Hettinger <python@rcn.com> 1073206484 +0000
committer Raymond Hettinger <python@rcn.com> 1073206484 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/legacy-trunk%4035076

Apply map/zip pre-sizing optimization to a broader class of objects.
Formerly, the length was only fetched from sequence objects.
Now, any object that reports its length can benefit from pre-sizing.