need help with array

[miguel22]

I need to pull a number from an array so that I can added to another number

Sample code

ierr, interchange = psspy.aareareal(-1, 1, 'PINT')
print interchange

this returns a value of
[[-1920.4107666015625, -2015.23876953125, -79.487495422363281]]

The number I'm intrested on is the -79.487495422363281

The next line of code would be

newinterchange = interchange + 220

Thanks in advance for all your help,
Miguel

[jlm699]

you could do interchange[-1] += 220, which takes the last element of the interchange array (at index -1) and adds 220 to it... give that a shot.