Question

see how to use zybooks for info on how our automated program grader works.

1 print(predictions are hard.)
2 print(\especially about the future.\)
3 user_num = 5
4 print(\user-num is:\ user_num)
5

run × not all tests passed
× test aborted

exited with return code 1.
file \/home/runner/local/submission/sample_program/main.py\, line 4
print(\user-num is:\ user_num)
^
syntaxerror: invalid syntax. perhaps you forgot a comma?

Explanation:

Step1: Identify syntax error cause

The error occurs because in Python, you cannot directly concatenate a string and a variable in a print() function without a separator or concatenation operator.

Step2: Fix line 3 syntax

Option 1 (using comma for separation):
print("user-num is:", user_num)
Option 2 (using string concatenation):
print("user-num is:" + str(user_num))
Option 3 (using f-string):
print(f"user-num is: {user_num}")

Answer:

The corrected code (using the simplest comma separation method) is:

print('Predictions are hard.')
print("Especially about the future.")
user_num = 5
print("user-num is:", user_num)

When run, this code will output:

Predictions are hard.
Especially about the future.
user-num is: 5