Support multiple context managers in a single with-statement.
+ """ multiple context managers in a single .
+ This function has been deprecated in favour of the multiple manager form
- with nested(A, B, C) as (X, Y, Z):
+ The one advantage of this function over the multiple manager form of the
+ with statement is that argument unpacking allows it to be
+ used with a variable number of context managers as follows:
+ with nested(*managers):
warn("With-statements now directly support multiple context managers",