[Python-ideas] Re: Make tuple a context manager

12.07.19 16:27, haael пише:

Could we add __enter__ and __exit__ to the tuple type?

Look at the following code:

a = open('a.tmp', 'w') b = open('b.tmp', 'w')

with (a, b) as (af, bf):     af.write("1")     bf.write("2")

Even better example:

with tuple(open(str(_n) + '.tmp', 'w') for _n in range(1000)) as f:     for n, fn in enumerate(f):         f.write(str(n))

Tuple as context manager would invoke __enter__ for each of its elements and return a tuple of the results.

On exit, the __exit__ method would be invoked for every element.

Are your aware of contextlib.nested()? And why it was deprecated and removed?