Re: dict is really slow for big truck

Scott David Daniels wrote:
MRAB wrote:
Scott David Daniels wrote:
Bruno Desthuilliers wrote:
d = {}
for line in open(thefile):
arr = line.strip().split()
d[arr[0]] = arr

Sorry, not picking on Bruno in particular, but I keep seeing
this formulation around various places.
When does line.strip().split() ever differ from line.split()?
... <explanation of what split does>

You misunderstand the question. For what values of line is
the following expression False?

line.strip().split() == line.split()

If you know of one, I'd like to hear of it. If not, I assert
that (baring some incredibly over-ambitous optimizer operations)
line.strip().split()
is simply an inefficient (both performance and text) way of saying:
line.split()

From the explanation it's clear that the .strip() is unnecessary.
.

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