Alex Hall wrote:
Hello all:
I have a project with many pyw files. One file holds a variable and a
function that I find myself using across many other pyw files, so I
called it helpers.pyw. The variable is "mostRecent", which is a string
and is meant to hold a string so I know what the program most recently
output; in all the other pyw files, every time the program outputs
something, I include the line
helpers.mostRecent=output
where output is a string and helpers has been imported.
The problem is that mostRecent does not seem to be updated at all, and
I cannot figure out why. I declare it with empty quotes initially, but
the program should keep updating it. Everytime I go to see what its
value is, though, it is still apparently empty. Here is a basic
sample:
randomFile.pyw
---
import helpers
def something():
output="I am the most recently output string!"
helpers.mostRecent=output
#end def
file2.pyw
---
from helpers import mostRecent
print(mostRecent) #prints nothing
Any thoughts on what I am doing wrong? Thanks!!
The form of import you are using
from helpers import mostRecent
makes a *new* binding to the value in the module that's doing the
import. Rebinding the var in a different module does not affect this.
It's similar to this:
a = 'string'
b = a
a = 'another string'
won't affect b's value.
What you can do, is not make a separate binding, but reach into the
helpers module to get the value there. Like this:
import helpers
print helpers.mostRecent
That will work as you hope.
Gary Herron
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