Code issues?

[SoniEx2]

I'm reading this code and I'm not sure what it does... What's new_id and why does it only use the first 35 chars of the string 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'? see here

Shouldn't this use len(symbols)? 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'[0:35] = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi'

Also, here why use "[n:n + 1]" when you can just use "[n]"?

[rupa]

• new_id is returning a random 4 character string. You're right, it should be using 0,61, or len(symbols - 1). I'm missing out on lots of nice ids.
• n vs. n:n+1 also right - might be a vestige of starting with list concatenation and not changing it, or just something I didn't notice when i wrote all this ages ago.

cheers