Issue 25147: add reason for using _collections

This commit is contained in:
Ethan Furman 2015-09-17 22:55:40 -07:00
parent b134a2a5ae
commit c791507e1f

View file

@ -1,6 +1,7 @@
import sys
from types import MappingProxyType, DynamicClassAttribute
# try _collections first to reduce startup cost
try:
from _collections import OrderedDict
except ImportError: