How do I use the data entered in a form?

[Peter Otten]

Steve wrote:

> def makeform(root, fields):
>    entries = {}
>    for field in fields:
...
>    return entries
> 
> if __name__ == '__main__':
>    root = Tk()
>    ents = makeform(root, fields)

> 
> SR = (entries['Sensor_Reading'].get())
> print ("SR Outside = " + SR)
> 
> ==================================
> The last two lines were guesses but they still failed.

[Always tell us how your code fails, please. If there's an exception include 
it and the complete traceback in your post.]

In this case you probably get a NameError because 'entries' is a local 
variable in makeform(). In the global namespace the person you copied the 
code from used 'ents' -- so you have to either use ents, too,

> if __name__ == '__main__':
>    root = Tk()
     ents = makeform(root, fields)
     ...
     SR = ents['Sensor_Reading'].get()


or rename it

> if __name__ == '__main__':
>    root = Tk()
     entries = makeform(root, fields)
     ...
     SR = entries['Sensor_Reading'].get()

>  # root.bind('<Return>', (lambda event, e = ents: fetch(e)))
>                           #"fetch not defined" reported here

Again, the author of the original code probably defined a fetch() function;
if you want to use it you have to copy it into your script.