micropython/tests/basics/dict_construct.py

# dict constructor

d = dict()
print(d)

d = dict({1:2})
print(d)

d = dict(a=1)
print(d)

d = dict({1:2}, a=3)
print(d[1], d['a'])

d = dict([(1, 2)], a=3, b=4)
print(d[1], d['a'], d['b'])
py: Implement full behaviour of dict.update(), and dict(). Add keyword args to dict.update(), and ability to take a dictionary as argument. dict() class constructor can now use dict.update() directly. This patch loses fast path for dict(other_dict), but is that really needed? Any anyway, this idiom will now re-hash the dictionary, so is arguably more memory efficient. Addresses issue #647. 2014-06-03 11:53:44 +00:00			`# dict constructor`

			`d = dict()`
			`print(d)`

			`d = dict({1:2})`
			`print(d)`

			`d = dict(a=1)`
			`print(d)`

			`d = dict({1:2}, a=3)`
			`print(d[1], d['a'])`

			`d = dict([(1, 2)], a=3, b=4)`
			`print(d[1], d['a'], d['b'])`