I noticed today that the is_dict and is_pair checks are not appearing to
work properly.  Here is an example that shows the issue:

[code]

#!/usr/bin/python

import pmt

def print_pmt(dictVar):
    print 'isPair:%05s, isDict:%05s, isTuple:%05s  =>  %s' %
(pmt.is_pair(dictVar), pmt.is_dict(dictVar), pmt.is_tuple(dictVar), dictVar)

print 'DICT'

d = pmt.make_dict()
print_pmt(d)

d = pmt.dict_add(d, pmt.intern('a'), pmt.intern('b'))
print_pmt(d)

d = pmt.dict_add(d, pmt.intern('c'), pmt.intern('d'))
print_pmt(d)

d = pmt.dict_add(d, pmt.intern('e'), pmt.intern('f'))
print_pmt(d)

print '\nCONS'

p = pmt.cons(pmt.make_dict(), pmt.make_u8vector(0,0))
print_pmt(p)

[/code]

Run that and you'll see what I consider strange behavior.  The values of
is_pair and is_dict to not match what is expected.  Is that by design?  If
so, why?

((a . b)) is not a pair...  It's a single element dictionary
((c . d) (a . b)) i can sorta see this being a pair, but it wasn't created
that way
((e . f) (c . d) (a . b)) definitely not a pair as it's 3 elements

(() . #[]) don't dictionaries have to be nested?


Thanks!
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