Iterating over readlines() and map()
W. Martin Borgert
debacle at debian.org
Wed Mar 25 20:27:14 EDT 2009
(Resend, because of funny error message:
> Your mail to 'Python-list' with the subject
> Iterating over readlines() and map()
> Is being held until the list moderator can review it for approval.
Whatever this means.)
Hi,
if I understand correctly, this code would not read the complete file
into the memory:
for line in myfile.readlines():
dosomethingwith(line)
Is this also true for this code?
for line in map(myfunction, myfile.readlines()):
dosomethingwith(line)
Or would use of map() mean, that the complete "myfile" is read into
the RAM? In this case, I would change it to:
for line in myfile.readlines():
line = myfunction(line)
dosomethingwith(line)
TIA!
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