Accessing Running Python program from another Python program

Question

I have the following program running

collector.py

data=0
while True:
    #collects data
     data=data+1

I have another program cool.py which wants to access the current data value. How can I do this?

Ultimately, something like:

cool.py

getData() 

*An Idea would be to use a global variable for data?

Answer 1

You can use memory mapping. http://docs.python.org/2/library/mmap.html

For example you open a file in tmp directore, next u mapping this file to memory in both program and write u data to this file.