# 1.17:  Erroneously using built-in names as variables.

# Demo:  run this program.  Note that the length of the name name is 5 (the length of 'Guido').
# 
# Next, add a new int variable:  len = 5.  Following this, attempt to determine the length of name a
# second time.  What happens?

name = 'Guido'
print(len(name))             # 5

len = 100

# here, please determine the length of name a second time

