input function question - Printable Version

input function question - Printable Version

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input function question - barryjo - Jan-17-2022

I am going crazy and spent hours on this.
it seems my input function does not work.

I have a two line program

x = input()
print(x)

x = ('input something')
print(x)

and the program hangs on two seperate computers and prints nothing
What is going on here?

I feel really stupid.

RE: input function question - deanhystad - Jan-17-2022

How do you run your program?

RE: input function question - barryjo - Jan-17-2022

(Jan-17-2022, 04:24 PM)deanhystad Wrote: How do you run your program?

I have tried interactive mode, i.e. command prompt and >>>> and also made a program using sublime.

Do I need to import a library ? I thouhjt input is a part of the language.
Do I need some sort of special terminator?

RE: input function question - jefsummers - Jan-17-2022

x = ('input something')

does not actually call the input function. Rather it assigns the text 'input something' to the variable x.

But again you should get some response. As Dean asked - how are you running this?

RE: input function question - barryjo - Jan-17-2022

Do I need to append a line terminator character after I input x using x = input() ?

I have a simple file made in Sublime and compiled and run with the cntrl B command.
the programs hangs on the input statement. like I said , I tried this on two different computers and got the same result.

I am using python Ver 3.??

RE: input function question - BashBedlam - Jan-17-2022

Try this and tell us what you get.

x = input ('Enter something now: ')
print (x)

RE: input function question - barryjo - Jan-17-2022

correction input works in interactive mode.

I tried

x = input ('Enter something now: ')
print (x)

It prints

Output:
"enter something now"

and when i enter something thee is nothing.

and got no response.

Puzzling.

RE: input function question - deanhystad - Jan-17-2022

input() doesn't really work in interactive mode.

Next time someone asks how you are running your program, answer the question. "I am not running a program. I am running Python in interactive mode."

RE: input function question - barryjo - Jan-17-2022

Actually, I did run python in interactive mode and the input function worked.

From the command line I entered "python" and saw the prompt >>>

>>> xx = input()
sdfddsf    I entered this
>>>> print(xx)   then I did...
sdfddsf     and the result is good

However...

x = input ('Enter something now: ')
print(x)

will not work

RE: input function question - deanhystad - Jan-17-2022

I see no reason why you would ever use input() in interactive mode. I guess it kind of works but it is really awkward.

If I do this in interactive mode it appears to work (awkwardly).

Output:>>> x = input("A")
Ahi
>>> print(x)
hi

I can also do this which is a bit less awkward.

Output:>>> x = input("A"); print(x)
Ahi
hi

It would make a lot more sense to write:

Output:>>> x = "hi"
>>> print(x)
hi

But you are right that you cannot paste two lines into an interactive session and have it work.

Output:>>> x = input("A")
Aprint(x)
>>> hi
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'hi' is not defined

So what is the problem?