400273a799
Generators that are already executing cannot be reexecuted. This patch puts in a check for such a case. Thanks to @jepler for finding the bug.
16 lines
253 B
Python
16 lines
253 B
Python
# yielding from an already executing generator is not allowed
|
|
|
|
def f():
|
|
yield 1
|
|
# g here is already executing so this will raise an exception
|
|
yield from g
|
|
|
|
g = f()
|
|
|
|
print(next(g))
|
|
|
|
try:
|
|
next(g)
|
|
except ValueError:
|
|
print('ValueError')
|