V
Size: a a a
V
R3
R3
V
V
def key_is_exist(value):
try:
a = value
except KeyError:
a = None
return a
V
d = key_is_exist(p["g"]["gg"]["rr"])
V
R3
M
d = key_is_exist(p["g"]["gg"]["rr"])
V
R3
def existing_key(value):
try:
a = value
except TypeError:
a = None
finally:
return a
M
V
V
M
M
R3
V
R3