On Thu, 06 Feb 2003 06:15:06 GMT
jerf at compy.attbi.com wrote:
>
> The question is whether the list comprehension is easier to read then the
> alternative for loop-based code. Even in your case, and with a bit of
> selective re-formatting that I would most assuredly use if I was actually
> writing that code,
>
> [a+b+c for a in "hard"
> for b in "to read" if b != 'e'
> for c in "code" if c != 'o'
> if " " not in a+b+c]
>
> is still easier then
>
> l = []
> for a in "hard":
> for b in "to read":
> if b != 'e':
> for c in "code":
> if c != 'o':
> if " " not in a+b+c:
> l.append(a+b+c)
>
>
For excluding cases in a for loop, I often find it more readable to use 'continue' as
it helps keep the indenting under control - especially when the body of the loop gets
longer than a dozen lines. Comments help too ;o)
l = []
for a in "hard":
for b in "to read":
if b == 'e':
continue
for c in "code":
if c == 'o':
continue
if " " not in a+b+c:
l.append(a+b+c)
John