array of array of float

[Schüle Daniel]

Summercoolness at gmail.com schrieb:
> i used C too much and haven't used Python for a while...
> 
> like in C, if we want an array of array of float, we use
> 
> float a[200][500];
> 
> now in Python, seems like we have to do something like
> 
> a = [ [ ] ] * 200
> 
> and then just use
> 
> a[1].append(12.34)   etc
> 
> but it turns out that all 200 elements points to the same list...
> and i have to use
> 
> a = [ ]
> for i in range (0, 200):
>     a.append([ ])
> 
> is there a simpler way... i wonder...

a = [[] for in range(200)]