为什么我的while循环不循环？

Question

I'm using notepad++ and I do this:

x = raw_input("blablabla")

But it's printing onto the console, why is that? Shouldn't it just set the variable x to that command instead of printing?

Though my problem isn't from this, I still don't understand why does a variable prompts without being called, shouldn't it be called only when I "print x"? ====================EDIT=======================

str = int(raw_input("Enter a number: "))

def numero(x):
    y = 0
    while x != 0:
        y += x
        return y
    else:
        print y

print numero(str)

Anyways, this isn't looping, my objective is here to add the numbers as long as user is inputing numbers until he inputs 0 which cancels and delivers the total.. I input a number and it goes right to printing the total without asking me for more numbers..

Answer 1

It is normal behaviour. You want to get an input from user. It is just a prompt for user input. Actually 'blabla..' isn't part of value of variable x .

>>> x = raw_input("blablabla")
blablabla # waiting for further input...

Same behaviour in python command line.

>>> x = raw_input("Please insert some text...\n")
>>> print x
Please insert some text...
My cool variable!
My cool variable! # current value of x

Just use as:

x = raw_input()

update:

I still don't understand why does a variable prompts without being called, shouldn't it be called only when I "print x"?

Printing of prompt initiated by call of raw_input('prompt')

Try this:

def numero():
    return int(raw_input("Enter a number: "))

x = numero()
y = 0
while x != 0:
    y += x
    x = numero()
else:
    print 'Total y:', y