blob: c02ec67562c446ff1202106bd9bbc8392acaee43 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
class MyGen:
def __init__(self):
self.v = 0
def __iter__(self):
return self
def __next__(self):
self.v += 1
if self.v > 5:
raise StopIteration
return self.v
def gen():
yield from MyGen()
def gen2():
yield from gen()
print(list(gen()))
print(list(gen2()))
class Incrementer:
def __iter__(self):
return self
def __next__(self):
return self.send(None)
def send(self, val):
if val is None:
return "Incrementer initialized"
return val + 1
def gen3():
yield from Incrementer()
g = gen3()
print(next(g))
print(g.send(5))
print(g.send(100))
#
# Test proper handling of StopIteration vs other exceptions
#
class MyIter:
def __iter__(self):
return self
def __next__(self):
raise StopIteration(42)
def gen4():
global ret
ret = yield from MyIter()
1//0
ret = None
try:
print(list(gen4()))
except ZeroDivisionError:
print("ZeroDivisionError")
print(ret)
|