Lessons · Python · turning a value into text
Turning a value into text
str(x) gives the text form of any value, so a number can sit inside a sentence.
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What it is for
Every message a program prints or writes to a file is text. The total is a number until you say str(total); then it can join a sentence, a filename, a label.
How to think about it
Ask: do I need this as text now? str() when you are about to print, join or display; keep it a number for as long as you are still doing maths.
Worked example
n = 42A number.
s = str(n)'42': two characters, no maths possible on it now.
print("Order " + s)Order 42. Without str() the + would raise: text plus number is an error.print(len(s))2: the length of the text, not the size of the number.
Your turn
Put the count into a message.
msg = "Items: " + (count)
Solve one with the tests running
The trap
str(3.0) is '3.0', not '3'. The text keeps the float's decimal, so format numbers on purpose when they are for people.
Now you try
Next in Python
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