# 2.5:  Use input() to request the user to enter a number, and then test to see whether it is all
# digits (hint:  use the str .isdigit() method in an if test).  Simply print a success message if
# all digits, a failure message if no.

# Sample program runs:

# please enter an integer:  hello
# that was NOT an integer!

# please enter an integer:  55.5
# that was NOT an integer!

# please enter an integer:  "55"
# that was NOT an integer!

# please enter an integer:  55
# THANKS FOR THE INTEGER!

