micropython/tests/basics/assign_expr.py

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810 B
Python

(x := 4)
print(x)
if x := 2:
print(True)
print(x)
print(4, x := 5)
print(x)
x = 1
print(x, x := 5, x)
print(x)
# Test "while" with assignment expression as conditional, assigning to a new local.
# The while conditional is compiled after the while body, so this tests how the
# compiler handles the case of an unbound local being compiled before it is assigned.
def f():
l = [0, 1]
while local := len(l):
print(local, l.pop())
f()
def foo():
print("any", any((hit := i) % 5 == 3 and (hit % 2) == 0 for i in range(10)))
return hit
hit = 123
print(foo())
print(hit) # shouldn't be changed by foo
print("any", any((hit := i) % 5 == 3 and (hit % 2) == 0 for i in range(10)))
print(hit) # should be changed by above
print([((m := k + 1), k * m) for k in range(4)])
print(m)