I didn't see anyone responding to this, so I'll pop in here...
On 03/22/2016 04:05 AM, BartC wrote:
[...]
(Suppose you need both the value and its index in the loop? Then the one-line
for above won't
work. For example, 'something' is [10,20,30] and you want to print:
0: 10
1: 20
2: 30 )
Your lack of knowledge of Python is showing again...
Python has "enumerate" just for this purpose. Your example would be written as:
for i, val in enumerate(something):
print('{}: {}'.format(i, val))
However, in this specific example, the i is not used as an actual index but rather a
line-number. So you can change "enumerate(something)" to "enumerate(something, 1)" to set the
starting number to 1 instead of the default 0, and the lines will be numbered 1, 2 and 3 rather
than 0, 1 and 2.
As always, the choice is yours. ;-)
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