# encoding: utf-8

try:
    from itertools import imap
except ImportError:
    print("Using map instead of itertools.imap (Python 3)")
    imap = map
import sys

def f(o):
    """A simple no-op function for testing imap()"""
    return o

class MyIterable(object):
    """A minimal class which is iterable"""
    def __init__(self):
        # A simple set of data to pass to imap()
        self.data = [1,2,3]
    def __iter__(self):
        return imap(f, self.data)

def main(argv):
    # In Jython 2.5 and CPython 2.7 and 3.2 this prints 1 2 3;
    # In Jython 2.7 it prints nothing
    print("Running ...")
    for obj in MyIterable():
        print(obj)

    # In both Jython 2.5 and 2.7 this prints 1 2 3
    #for obj in iter(MyIterable()):
    #    print(obj)

    print("\nDone.")
# end main()

if __name__ == '__main__':
    main(sys.argv[1:])