I’m working the port to Python3. One strangeness I’ve found is that sometimes

name = ‘memory’

for i in memory[:3]:

Doesn’t work. I get:

TypeError: int() argument must be a string, a bytes-like object or a number, not ‘NoneType’

I must explicitly add the zero:
for i in memory[0:3]:

Anybody know why this is? I’ve tried searching, but cannot find anything that states this doesn’t work.

Joe Pizzi