Python `for` does not iterate over enumerate object

Question

Why does this not iterate?

import logging
logging.basicConfig(level=logging.DEBUG)

x = []
y = [[] for n in range(0, 1)]
linedata = [\"0\",\"1\",\"2\"]
x.append(         


        

Answer 1

this line :

logging.debug( list(e) )

consumes the iterator, so when you get here:

for k, v in e:
   # ...

e is already exhausted.