revive a generator

[Terry Reedy]

Here is a class that creates a re-iterable from any callable, such as a 
generator function, that returns an iterator when called, + captured 
arguments to be given to the function.

class reiterable():
   def __init__(self, itercall, *args, **kwds):
     self.f = itercall  # callable that returns an iterator
     self.args = args
     self.kwds = kwds
   def __iter__(self):
     return self.f(*self.args, **self.kwds)

def squares(n):
     for i in range(n):
         yield i*i

sq3 = reiterable(squares, 3)

for i in sq3: print(i)
for i in sq3: print(i)
 >>>
0
1
4
0
1
4


-- 
Terry Jan Reedy