Is it possible to use a variable as a string indice in Python?

Question

I'm really new to Python and programming in general, so I've been stuck for a while trying to figure out through searching the internet how to print a string to a length determined by a variable. This is one of the things I tried, for an example of what I'm attempting to do:

var1 = 6
string1 = "a random string"
print(string1[0,var1])

So I've been wondering if it is possible to use the stored value of a variable as a string indice or if there is another workaround that I haven't thought of or found on the rest of the internet.

Thanks for reading! :)

It should be print(string1[0 : var1]) You should use : instead of , — tushortz
– tushortz, Commented Sep 10, 2015 at 0:10

HelloWorld · Accepted Answer · 2015-09-10 00:11:18Z

1

Yes, that works. Some background about slices is available in the Python documentation for Extended Slices. But instead of the comma use :

var1 = 6
string1 = "a random string"
print(string1[0:var1])
# Output: a rand

answered Sep 10, 2015 at 0:11

HelloWorld

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Fabio · Accepted Answer · 2015-09-10 00:11:25Z

1

Your problem is not using a variable as indice, but using tuple as indices, which you cannot do. If you wanna print the substring here's the code:

var1 = 6
string1 = "a random string"
print(string1[0:var1])

answered Sep 10, 2015 at 0:11

Fabio

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