On 09/11/2013 08:49 AM, Victor Stinner wrote:
2013/9/11 Ethan Furman <et...@stoneleaf.us>:
He isn't keeping the key unchanged (notice no white space in MAPPING), he's
merely providing a function that will automatically strip the whitespace
from key lookups.
transformdict keeps the key unchanged, see the first message:
>>> d = transformdict(str.lower)
>>> d['Foo'] = 5
>>> d['foo']
5
>>> d['FOO']
5
>>> list(d)
['Foo']
'Foo' is stored as 'Foo', not as 'foo'. So for stripped keys:
d=transformdict(str.strip); d[' abc ']; print(list(d))
should print "[' abc ']", not "['abc']".
And indeed it does:
Python 3.4.0a1+ (default:833246d42825+, Aug 31 2013, 14:17:59)
[GCC 4.7.3] on linux
Type "help", "copyright", "credits" or "license" for more information.
--> from collections import transformdict
--> d=transformdict(str.strip); d[' abc '] = 42; print(list(d))
[' abc ']
Is it the expected result?
Yup! :)
--
~Ethan~
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