<filename>dirtynotes/hello.py
#!/usr/bin/env python
from __future__ import print_function
import sys

print("#stdout", file=sys.stdout)
print("#stderr", file=sys.stderr)
for line in sys.stdin:
    print(line, file=sys.stdout)

<filename>dirtynotes/hello.py
#!/usr/bin/env python
from __future__ import print_function
import sys

print("#stdout", file=sys.stdout)
print("#stderr", file=sys.stderr)
for line in sys.stdin:
    print(line, file=sys.stdout)

#!/usr/bin/env python