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def gen():
try:
yield 1
except ValueError as e:
print("got ValueError from upstream!", repr(e.args))
yield "str1"
raise TypeError
def gen2():
print((yield from gen()))
g = gen2()
print(next(g))
print(g.throw(ValueError))
try:
print(next(g))
except TypeError:
print("got TypeError from downstream!")
# thrown value is caught and then generator returns normally
def gen():
try:
yield 123
except ValueError:
print('ValueError')
# return normally after catching thrown exception
def gen2():
yield from gen()
yield 789
g = gen2()
print(next(g))
print(g.throw(ValueError))
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