104 lines
2 KiB
Python
104 lines
2 KiB
Python
![]() |
# test 'return' within the finally block, with nested finally's
|
||
|
# only inactive finally's should be executed, and only once
|
||
|
|
||
|
# basic nested finally's, the print should only be executed once
|
||
|
def f():
|
||
|
try:
|
||
|
raise TypeError
|
||
|
finally:
|
||
|
print(1)
|
||
|
try:
|
||
|
raise ValueError
|
||
|
finally:
|
||
|
return 42
|
||
|
print(f())
|
||
|
|
||
|
# similar to above but more nesting
|
||
|
def f():
|
||
|
try:
|
||
|
raise ValueError
|
||
|
finally:
|
||
|
print(1)
|
||
|
try:
|
||
|
raise TypeError
|
||
|
finally:
|
||
|
print(2)
|
||
|
try:
|
||
|
pass
|
||
|
finally:
|
||
|
return 42
|
||
|
print(f())
|
||
|
|
||
|
# similar to above but even more nesting
|
||
|
def f():
|
||
|
try:
|
||
|
raise ValueError
|
||
|
finally:
|
||
|
print(1)
|
||
|
try:
|
||
|
raise TypeError
|
||
|
finally:
|
||
|
print(2)
|
||
|
try:
|
||
|
raise Exception
|
||
|
finally:
|
||
|
print(3)
|
||
|
return 42
|
||
|
print(f())
|
||
|
|
||
|
# upon return some try's are active, some finally's are active, some inactive
|
||
|
def f():
|
||
|
try:
|
||
|
try:
|
||
|
pass
|
||
|
finally:
|
||
|
print(2)
|
||
|
return 42
|
||
|
finally:
|
||
|
print(1)
|
||
|
print(f())
|
||
|
|
||
|
# same as above but raise instead of pass
|
||
|
def f():
|
||
|
try:
|
||
|
try:
|
||
|
raise ValueError
|
||
|
finally:
|
||
|
print(2)
|
||
|
return 42
|
||
|
finally:
|
||
|
print(1)
|
||
|
print(f())
|
||
|
|
||
|
# upon return exception stack holds: active finally, inactive finally, active finally
|
||
|
def f():
|
||
|
try:
|
||
|
raise Exception
|
||
|
finally:
|
||
|
print(1)
|
||
|
try:
|
||
|
try:
|
||
|
pass
|
||
|
finally:
|
||
|
print(3)
|
||
|
return 42
|
||
|
finally:
|
||
|
print(2)
|
||
|
print(f())
|
||
|
|
||
|
# same as above but raise instead of pass in innermost try block
|
||
|
def f():
|
||
|
try:
|
||
|
raise Exception
|
||
|
finally:
|
||
|
print(1)
|
||
|
try:
|
||
|
try:
|
||
|
raise Exception
|
||
|
finally:
|
||
|
print(3)
|
||
|
return 42
|
||
|
finally:
|
||
|
print(2)
|
||
|
print(f())
|