Getting user input with function

Question

Here is my code:

def bitcoin_to_usd(btc):
 amount = btc * 527
 print(amount)
btc = input("Input your Bitcoins amount: ")
bitcoin_to_usd(btc)

I want to get Bitcoin number from user then I want to calculate how much USD is it.

That code gives me repetition of the input. Such as if you input 2 it returns 222222222222222222222222.... doesn't calculate it.

My Python version is 3.4.1 and I am using PyCharm.

Any ideas?

Answer 1

Your code is fine except that you need to convert the result of input, which returns a string, to a number. Let's try float for a floating-point datatype:

def bitcoin_to_usd(btc):
 amount = btc * 527
 print(amount)
btc = float( input("Input your Bitcoins amount: ") )
bitcoin_to_usd(btc)

Answer 2

In python3.x, input returns a string¹, not a number. If you want a number, you should convert the input string to a float or int.

btc = float(input("Input your Bitcoins amount: "))

^{1This explains the results as well, multiplying a string by an integer causes the string to be concatenated with itself that number of times.}

Answer 3

You could use

btc = input("Input your Bitcoins amount: ")
def bitcoin_to_usd(btc):
 amount = btc * 527
 print(amount)
bitcoin_to_usd(btc)

Answer 4

you can try this where the function has no parameter :

 def sum():
 return x+y
 x = int(input("Val of x"))
 y = int(input("Val of y"))
 print(sum())

or you can also try this one where the function has the parameter:

def sum(x,y):
 return x+y
x = int(input("Val of x"))
y = int(input("Val of y"))
print(sum(x,y))

Answer 5

Use the below line inside your defined function:

amount = float(btc) * 527