python isn't displaying the values for assign operators

G-Known · 11-25-2015, 09:49 PM

I'm curious as to why it isn't showing the value of this operation. This is a Slackware 14.1 machine.

dugan · 11-26-2015, 12:41 AM

Because you're assigning the value to zhong. Enter "zhong" in the next line and you'll see it.

G-Known · 11-26-2015, 10:14 PM

Quote:

Originally Posted by dugan

Because you're assigning the value to zhong. Enter "zhong" in the next line and you'll see it.

But when I try to use this operator like "+=", it doesn't display the result.

pan64 · 11-27-2015, 01:49 AM

yes, you entered a command and that was executed. Why do you expect anything else?

ntubski · 11-27-2015, 09:25 AM

Python's assignment operators aren't like C's, they don't return a value.

G-Known · 11-27-2015, 09:53 AM

Quote:

Originally Posted by ntubski

Python's assignment operators aren't like C's, they don't return a value.

I see, but here's a screenshot that does return the value. So is there something strange?

ntubski · 11-27-2015, 10:51 AM

Quote:

Originally Posted by G-Known

I see, but here's a screenshot that does return the value. So is there something strange?

No, the screenshot shows that the assignments didn't return the value.

dugan · 11-27-2015, 12:26 PM

Code:

a = 1  # does not return a value
a = a + 1  # does not return a value
a += 1  # equivalent to a = a + 1 and does not return a value
a  # does not+return a value

Clearer?

G-Known · 11-28-2015, 10:19 AM

Yeah, thanks for the clarification.

pan64 · 11-28-2015, 10:21 AM

hm. dugan? probably you mistyped, the last command, when you entered nothing but a variable will return the value.