more complicated counterbalancing - creating own list

DahmSF

This is my script:

    BalanceList1 = range(1,7) + range(13,19)
    BalanceList2 = range(7,13) + range(19,25)

    if self.get('subject_nr') in BalanceList1:
    # do something

    if self.get('subject_nr') in BalanceList2:
    # do something

This is my error message
TypeError: unsupported operand type(s) for +: 'range' and 'range'

sebastiaan

Hi,

In Python 3—which you're apparently using, and good for you, because it's an improvement over Python 2—many functions return special iterator objects, instead of lists. The range() function returns a range object. These iterators behave like lists in many ways, but not all, and one difference is that you cannot use + to concatenate them. Solution: first convert to a list like so:

BalanceList1 = list(range(1,7)) + list(range(13,19))

Cheers,
Sebastiaan