Using namedtuples field names for column indices in a list of lists
python at deborahswanson.net
Mon Jan 9 05:45:54 EST 2017
Antoon Pardon wrote, on January 09, 2017 2:14 AM
> > 1) I have a section that loops through the sorted data, compares two
> > adjacent rows at a time, and marks one of them for deletion if the
> > rows are identical.
> > I'm using
> > for i in range(len(records)-1):
> > r1 = records[i]
> > r2 = records[i+1]
> > if r1.xx = r2.xx:
> > .
> > .
> > and my question is whether there's a way to work with two adjacent
> > rows without using subscripts?
> for r1, r2 in zip(records[i], records[i+1]):
> if r1.xx == r2.xx
Ok, I've seen the zip function before and it might do the job, but here
I think you're suggesting:
for i in range(len(records)-1):
for r1, r2 in zip(records[i], records[i+1]):
if r1.xx == r2.xx
The hope was to do the loop without subscripts, and this may or may not
have gotchas because records is a namedtuple:
for r in records(1:):
More information about the Python-list