Python - How to get help() text into a variable?

Question

Python

How to get text into variable a ?
import random
a= help(random.sample)
print(a) # - now None

Answer 1

a = random.sample.__doc__
I was curious about how to intercept the output, and I found a solution:

from io import StringIO
import random
import sys

class OutputInterceptor(list):
    def __enter__(self):
        self._stdout = sys.stdout
        sys.stdout = self._stringio = StringIO()
        return self

    def __exit__(self, *args):
        self.extend(self._stringio.getvalue().splitlines())
        del self._stringio
        sys.stdout = self._stdout

with OutputInterceptor() as output:
    help(random.sample)

print('\n'.join(output))

Answer 2

Bravo!!!! I suspected that this can be done in python -c connecting sys :-)