python comobject

[keuninkske]

hello,

i am learning about comobject in python
but the internet seems not to have so many clear information about it
does somebody know a clear explanation or a tutorial about comobject?

my problem:
we are retrieving a buch of records from exchange
we seem to have data comming in
we use .restrict method
but when i do

print(len(comobject before restrict))

and

print(len(comobject after restrict))

i get twice the value 2147483647

my code

print(len(appointmentst))
...    begin = dt.date.today()
...    print(begin)
...    end = begin + dt.timedelta(
...        days=7);  
...    print(end)
...    restriction = "[Start] >= '" + begin.strftime("%m/%d/%Y") + ' 12:00 AM'"' AND [End] <= '" + end.strftime(
...        "%m/%d/%Y") + ' 12:00 AM'"'"
...    print(restriction)
...    restrictedItems1 = appointmentst.Restrict(restriction)
...    print(len(restrictedItems1))

anyhow, how do i know what is in this comobject?
because, the result of this is afterwards handeled by an for loop an this one never starts, so the comobject seems to be empty