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Python Python Basics (2015) Logic in Python Print "hi"

Alexander Pavlenko
Alexander Pavlenko
654 Points

Hello! Could someone please help because i don't really understand the task at hand. And what type is "counter"?

I am also confused about "multiply string by integer". How is this relevant here?

printer.py
def printer():
    while counter:
        counter -= 1
        print("Hi ")
printer()        

7 Answers

Hey Alexander!

In python you can multiply a string by an int, and it will print that string how many times you asked it to. For example:

print("_" * 40) # This will print out "_" 40 times

So, the task asks you to pass an argument called "count" to the function, so your have to put that argument between the parenthesis in the function, like this:

def printer(count):

And you don't need to call the function in this exercise, so there is no need to use:

printer()

Now using all that information, your code should look something like this:

def printer(count):
    print("Hi" * count)
Alexander Pavlenko
Alexander Pavlenko
654 Points

Thank you! But out of curiosity... Can i complete the task using Loop?

Yes! You definetly can. It makes your code a little bigger, but you can do it. The thing is that, you'd have to create a variable to compare the count to. Here is how I did it.

def printer(count):
    num = 0
    while num < count:
        print("Hi")
        num += 1

Cheers!

Alexander Pavlenko
Alexander Pavlenko
654 Points

From what i can understand if i do "for count:" loop it does smth while count is True (in other words != 0) can i do smth like this?

def printer(count):
     for count:
        count -= 1
        print("Hi ")
Alexander Pavlenko
Alexander Pavlenko
654 Points

how do i add code sections the same way you do?:)

Python’s for statement iterates over the items of any sequence. So you'd use for loops to go through something like a list of things and execute a block of code while doing so. For example:

list = [1, 2, 3, 4]
for num in list:
    print num

This code will print every item in the list. In plain english, it means something like... for every num in this list, I want you to print the num. So the "for count" statement is incorrect. It would read in english: for every count... So it's incomplete. "while count" reads: while count is True, do something.

Just bellow the text field in the "Add an Answer" section, there is a link called Markdown Cheatsheet. There it tells you everything you need to know about how to format your posts. To write a section of code, you need to write a block with three ` . And close it once you are done with your code.

Alexander Pavlenko
Alexander Pavlenko
654 Points

my bad, it was about "while" Keneth gave this example in video https://teamtreehouse.com/library/around-and-around 4:35

What do you mean?

Alexander Pavlenko
Alexander Pavlenko
654 Points

Keneth's sample from that video:

start = 10
while start:
   print(start)
   start -= 1

I thought i could use it in the task

You can, but it's slightly different from what you wrote. Here is how I did it.

def printer(count):
    while count != 0:
        print("Hi")
        count -= 1
Alexander Pavlenko
Alexander Pavlenko
654 Points

just did it in Workspaces: both "count != 0" and simply "count" work actually. I think it's crystal clear now, Erik.

I really really appreciate your time on me:) Cheers! Have a great day!

Good to know this works too! No problem! Happy coding =)