Answer: Python Puzzler #383

The answer is C. The program prints:

2
What the program prints
Checked by running the program for real.

Why?

count goes through the string and counts how many times ‘p’ appears.

Trace table

A trace table follows the program step by step. Here’s this one:

lettermatches?
b
e
e
pyes
(space)
b
o
o
pyes

The code again

word = "beep boop"
print(word.count("p"))

Try it: change one number in the program and predict the new output before you run it.