Python: some practice, questions and #%§'

[Guenter Schink]

Another trap:
in your snipped:

Quote: print('key= '+str(int(log2(k))))

doesn't always return the correct key code due to the binary nature of floats. This can be avoided by replacing <int> by <round>. In this case <round> even doesn't need a second argument. For positive numbers it works like <ceil> from the math module.

Quote: print('key= '+str(round(log2(k))))

Things like this could drive you crazy.

Günter