micropython/tests/basics/dict_views.py

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2014-01-10 01:00:20 +00:00
d = {1: 2}
for m in d.items, d.values, d.keys:
print(m())
print(list(m()))
# print a view with more than one item
print({1:1, 2:1}.values())
# unsupported binary op on a dict values view
try:
{1:1}.values() + 1
except TypeError:
print('TypeError')
# unsupported binary op on a dict keys view
try:
{1:1}.keys() + 1
except TypeError:
print('TypeError')
# keys dict_view is not hashable
try:
hash({}.keys())
except TypeError:
print('TypeError')
# values dict_view is hashable
print(type(hash({}.values())))
# items dict_view is not hashable
try:
hash({}.items())
except TypeError:
print('TypeError')
2014-01-10 01:00:20 +00:00
# set operations still to come