[docs] [issue28612] str.translate needs a mapping example
report at bugs.python.org
Fri Dec 30 00:23:24 EST 2016
Raymond Hettinger added the comment:
I like the idea of adding a mapping example but don't want to encourage use of defaultdict in contexts like this one. A defaultdict usefully specifies a default but has the unpleasant side-effect of altering the dictionary (adding new keys) during the look-up phase. This has bitten a lot of people (including famous ones like Peter Norvig).
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