Combining digit in a list to make an integer

[Harlin Seritt]

I have the following:

num1 = ['1', '4', '5']

How can I combine the elements in num1 to produce an integer 145?

thanks,

Harlin Seritt

[Dan Bishop]

Re: Combining digit in a list to make an integer

Harlin Seritt wrote:[color=blue]
> I have the following:
>
> num1 = ['1', '4', '5']
>
> How can I combine the elements in num1 to produce an integer 145?[/color]


int(''.join(num 1))

[Harlin Seritt]

Re: Combining digit in a list to make an integer

If anyone has time, would you mind explaining the code that Dan Bishop
was so kind as to point out to me:

int(''.join(num 1))

This worked perfectly for me, however, I'm not sure that I understand
it very well.

Thanks,

Harlin Seritt

[Joel]

Re: Combining digit in a list to make an integer


Harlin Seritt wrote:[color=blue]
> If anyone has time, would you mind explaining the code that Dan[/color]
Bishop[color=blue]
> was so kind as to point out to me:
>
> int(''.join(num 1))
>
> This worked perfectly for me, however, I'm not sure that I understand
> it very well.
>
> Thanks,
>
> Harlin Seritt[/color]

''.join(list of strings) is a python idiom for fast string
concatenation. ''.join(num1) would give "145". The function int() is
then used to convert the resulting string into an integer.

[Dan Bishop]

Re: Combining digit in a list to make an integer

Harlin Seritt wrote:[color=blue]
> If anyone has time, would you mind explaining the code that Dan[/color]
Bishop[color=blue]
> was so kind as to point out to me:
>
> int(''.join(num 1))
>
> This worked perfectly for me, however, I'm not sure that I understand
> it very well.[/color]

join(...)
S.join(sequence ) -> string

Return a string which is the concatenation of the strings in the
sequence. The separator between elements is S.

For example:
[color=blue][color=green][color=darkred]
>>> '<'.join(['1', '2', '3'])[/color][/color][/color]
'1<2<3'

If you don't want a separator, simply let S be the empty string ('').

[Facundo Batista]

Re: Combining digit in a list to make an integer

On 1 Apr 2005 03:21:12 -0800, Harlin Seritt <harlinseritt@y ahoo.com> wrote:
[color=blue]
> num1 = ['1', '4', '5']
>
> How can I combine the elements in num1 to produce an integer 145?[/color]
[color=blue][color=green][color=darkred]
>>> num1 = ['1', '4', '5']
>>> int(''.join(num 1))[/color][/color][/color]
145

.. Facundo

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