[Tutor] for loop

[Martin Walsh]

Sean Novak wrote:
> I know I'm going to feel stupid on this one..
> I would normally write this in PHP like this:
> 
> for($i=1; i< count($someArray); $i++)
> {
>     print $someArray[i]
> }
> 
> essentially,, I want to loop through an array skipping "someArray[0]"
> but in python the for syntax is more like foreach in PHP..

I can think of a few approaches, in no particular order -- the decision
is somewhat data dependent, IMO.

1. Use the enumerate built-in

somelist = ['one', 'two', 'three', 'four']
for count, element in enumerate(somelist):
    if count > 0: print element

2a. Slice the list to omit the first element

for element in somelist[1:]:
    print element

2b. If somelist is a sequence of strings...

print '\n'.join(somelist[1:])

> I've tried this to no avail
> 
>  count = 0
>  for i in range(1,10):
>      if count == 0:
>         continue
>     else:
>         count += 1
>         print i
>         continue
> 
> it prints absolutely nothing.

This never reaches 'print i', because count is not incremented when
count == 0, and so it remains for all of the values in range(1, 10).

HTH,
Marty