Question

Lets say I have a list:

my_list = ['first', 'second', 'third']

Now what I want to do is run a cmd command that defines a name to this list, but at the same time numbers it. I know this sounds confusing so here is what it would look like:

for i in range (0, 4):
      localdevice = cmd("some command create name ARRAY_456_" + i + "")

Now I don’t need the command itself, that I already have, what I need to know is whether my for loop will work and create ARRAY_456_1 then ARRAY_456_2 and then ARRAY_456_3?

Or is there some other way that I can add numbers to the end of this?

Answer 1

Should work but would write it that way

for i in range (0, 4):
      localdevice = cmd("some command create name ARRAY_456_%d" % i)

Using string concatenation isn’t that clean. Using format to replace parameters in a string is much more flexible

Here’s a more complete example:

cmd = 'some command create name'
for i in range(4):
    name = 'ARRAY_456_%d' % i # will create ARRAY_456_0, ...
    localdevice = cmd('%(cmd)s %(name)s' % dict(cmd=cmd, name=name)) # will merge the command with the name using keywords

If it’s not what you’re looking for then. I’m not sure to understand the question.