[issue32940] IDLE: pyparse - replace StringTranslatePseudoMapping with defaultdict

[Cheryl Sabella]

Cheryl Sabella <chekat2 at gmail.com> added the comment:

Tal had written this on the original issue21765:
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Finally, since the defaultdict is kept around as long as IDLE is running, I decided to avoid having it grow continually and consume memory unnecessarily. So I wrote a simple Mapping class, which wraps a normal dict and uses a custom default value instead of None, ord('x') in this case. Works like a charm :)
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So maybe I misunderstood and this shouldn't be a defaultdict?

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<https://bugs.python.org/issue32940>
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