Example: One-line Python Script Showing Different Outputs in Script

 1. Give an example of a one-line script that does display something on the screen when the script is executed, but displays something different on the screen when that line is entered into the interactive shell. (using Python)

2. Give an example of a one-line script that displays something on the screen when the script is executed, but that doesn't display anything on the screen when that line is entered into the interactive shell (using Python)

1. Example: One-line Python Script Showing Different Outputs in Script vs Interactive Shell

Script:

python

"Hello, world!"

• When run as a script:
  This line does not display anything on the screen, because string literals are ignored unless explicitly printed.

• When entered in the interactive shell:
  It displays the string 'Hello, world!' because the interactive shell automatically echoes the value of expressions.

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2. Example: One-line Python Script Displaying Output in Script, But Not in Interactive Shell

Script:

python

print("Hello, world!")

• When run as a script:
  It displays: Hello, world! on the screen.

• When entered in the interactive shell:
  It also displays Hello, world!, because print() always outputs to the screen.

However, if you want a line that displays something in the script but not in the interactive shell, use a variable assignment:

python

x = "Hello, world!"

• When run as a script:
  It does not display anything.

• When entered in the interactive shell:
  It also does not display anything (unless you type just x).

But the requirement is:

• Script: displays something

• Shell: displays nothing

So, here's an example:

python

import this

• When run as a script:
  It displays the "Zen of Python".

• When entered in the interactive shell:
  It also displays the Zen of Python (because import this prints output both ways).

So, actually, the most accurate answer is to use:

python

print("Hello, world!")

• Script: Output appears.

• Shell: Output appears.

But if you want a line that only outputs in script, but not when entered into shell, that's not possible with just one line and built-ins, because the shell runs code the same as the script for print statements. The closest is an assignment or expression:

python

x = print("Hello, world!")

• Script: prints "Hello, world!"

• Shell: prints "Hello, world!" and outputs nothing else (since print returns None, and the shell doesn't echo assignments or None values).

So to directly answer your question:

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Final Answers

1.

python

"Hello, world!"

• Script: No output

• Shell: Shows 'Hello, world!'

2.

python

print("Hello, world!")

• Script: Shows Hello, world!

• Shell: Shows Hello, world!

But if you want a line that displays output only in the script and not in the shell, that's not possible with print, but a variable assignment like below displays nothing in either.
So, the main distinction is in answer 1.

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