Deleting from a list (reprise)

[Jason Orendorff]

> def delwhile(sequence, marker):
>     sequence[:] = sequence
>     while marker in sequence: sequence.remove(marker)

I think you mean
  sequence = sequence[:]  # make a copy of 'sequence'

What you wrote splices the list into itself (basically a no-op),
with the result that the original sequence is modified in-place.
The other runs, therefore, work with freqma=0.

Also: try this one.  It's pretty quick.

def delcomp(sequence, marker):
    sequence = [i for i in sequence if i != marker]

## Jason Orendorff    http://www.jorendorff.com/