Hard
What is the role of the Base metaclass below?
class Base(type):
def __new__(cls, name, bases, attrs):
super_new = super().__new__
attrs['custom_attribute'] = False
return super_new(cls, name, bases, attrs)
class Middle(metaclass=Base):
def __init__(self, firstname):
self.firstname = firstname
class Bottom(Middle):
pass
Author: John PendenqueStatus: PublishedQuestion passed 99 times
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8
Why is the output of the following code undefined?
```
def f(n):
return n + 1
f(n)
```6
What is the output of the following code?
```
import asyncio
async def read_data():
with open('data.txt', 'r') as f:
data = f.read()
return data
async def main():
data = await read_data()
print(data)
if __name__ == '__main__':
asyncio.run(main())
```4
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