KnowCardPython · Exception Handling
What base class should a custom exception inherit from, and what's the consequence of getting it wrong?
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More in Exception Handling
What does this print? (nested try)
```
try:
try:
raise TypeError
except IndexError:
print("inner")
except TypeError:
print("outer")
```
What happens if an exception is raised inside an except (or else / finally) branch — can a later except of the same try catch it?
In a try/except/else block, when does the else branch run?
What does this print?
```
def f():
try:
return 1
finally:
print("cleanup")
print(f())
```
What does this function return?
```
def f():
try:
return "try"
finally:
return "finally"
```
Why is ordering except branches general-before-specific a bug?
```
try:
risky()
except Exception:
a()
except ValueError:
b()
```
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