cf.FieldList.count

FieldList.count(x)

L.count(value) – return number of occurrences of value

Each field in the field list is compared to x with the field’s equals method (as opposed to the == operator).

Note that f.count(x) is equivalent to sum(g.equals(x) for g in f).

See also

cf.Field.equals, list.count

Examples:

>>> f = cf.FieldList([a, b, c, a])
>>> f.count(a)
2
>>> f.count(b)
1
>>> f.count(a+1)
0