ownership_parser.py

a = '12.5%WW|-US CA'.split('|')

general = []

for b in a:
    c = {
        'type': 'include',
        'ratio': 100
    }

    b = b.strip()
    if b[0] == '-':
        c['type'] = 'exclude'
        b = b[1:]

    elif '%' in b:
        d = b.split('%')
        c['ratio'] = float(d[0])
        b = d[1]

    if b == 'WW':
        c['type'] = 'exclude'
        b = ''

    c['territories'] = b.split()
    general.append(c)

print(general)