itertools.ilen?

[Duncan Booth]

Christos "TZOTZIOY" Georgiou <tzot at sil-tec.gr> wrote in 
news:98s4jvkqv94c0gj99epjanq9b3aqvq8i2q at 4ax.com:

> Another way to count objects:
> 
> # code start
> import types, gc
> 
> type2key = {
>     types.ClassType: "classes",
>     types.FunctionType: "functions",
>     types.MethodType: "functions",
>     types.ModuleType: "modules",
>     types.DictType: "dicts",
>     types.ListType: "lists",
>     types.TupleType: "tuples"
> }
> 
> sums = {
>     "classes": 0, "functions": 0, "modules": 0, "dicts": 0,
>     "lists": 0, "tuples": 0
> }
> 
> for obj in gc.get_objects():
>     try:
>         sums[type2key[type(obj)]] += 1
>     except KeyError:
>         pass
> # code end
> 

I'm just curious, why did you decide to map the types to strings instead of 
just using the types themselves?
e.g.

>>> import gc
>>> sums = {}
>>> for obj in gc.get_objects():
    if type(obj) not in sums:
        sums[type(obj)] = 1
    else:
        sums[type(obj)] += 1

        
>>> for typ, count in sums.iteritems():
	print typ.__name__, count

	
instance 525
tuple 4273
class 162
getset_descriptor 14
traceback 2
wrapper_descriptor 165
list 258
module 71
instance method 279
function 1222
weakref 18
dict 1647
method_descriptor 82
member_descriptor 75
frame 18
>>> 

-- 
Duncan Booth                                             duncan at rcp.co.uk
int month(char *p){return(124864/((p[0]+p[1]-p[2]&0x1f)+1)%12)["\5\x8\3"
"\6\7\xb\1\x9\xa\2\0\4"];} // Who said my code was obscure?