circuitpython/tests/basics/gen_yield_from_throw3.py

31 lines
536 B
Python

# yield-from a user-defined generator with a throw() method
class Iter:
def __iter__(self):
return self
def __next__(self):
return 1
def throw(self, x):
print('throw', x)
return 456
def gen():
yield from Iter()
# calling close() should not call throw()
g = gen()
print(next(g))
g.close()
# can throw a non-exception object
g = gen()
print(next(g))
print(g.throw(123))
# throwing an exception class just injects that class
g = gen()
print(next(g))
print(g.throw(ZeroDivisionError))