Playback Speed
Some people have a habit of lecturing speaking rather quickly, and it’d be nice to slow them down, a la YouTube’s 0.75 playback speed, or even by having them pause between words.
In a file called playback.py
, implement a program in Python that prompts the user for input and then outputs that same input, replacing each space with ...
(i.e., three periods).
Hints
- Recall that
input
returns astr
, per docs.python.org/3/library/functions.html#input. - Recall that a
str
comes with quite a few methods, per docs.python.org/3/library/stdtypes.html#string-methods.
Demo
Before You Begin
Log into cs50.dev, click on your terminal window, and execute cd
by itself. You should find that your terminal window’s prompt resembles the below:
$
Next execute
mkdir playback
to make a folder called playback
in your codespace.
Then execute
cd playback
to change directories into that folder. You should now see your terminal prompt as playback/ $
. You can now execute
code playback.py
to make a file called playback.py
where you’ll write your program.
How to Test
Here’s how to test your code manually:
- Run your program with
python playback.py
. TypeThis is CS50
and press Enter. Your program should output:This...is...CS50
- Run your program with
python playback.py
. TypeThis is our week on functions
and press Enter. Your program should output:This...is...our...week...on...functions
- Run your program with
python playback.py
. TypeLet's implement a function called hello
and press Enter. Your program should outputLet's...implement...a...function...called...hello
You can execute the below to check your code using check50
, a program that CS50 will use to test your code when you submit. But be sure to test it yourself as well!
check50 cs50/problems/2022/python/playback
Green smilies mean your program has passed a test! Red frownies will indicate your program output something unexpected. Visit the URL that check50
outputs to see the input check50
handed to your program, what output it expected, and what output your program actually gave.
How to Submit
In your terminal, execute the below to submit your work.
submit50 cs50/problems/2022/python/playback