On 2017-09-17 14:16, bartc wrote: > print() is used for its side-effects; what relevant value does it > return?
depending on the sink, errors can be returned (at least for the printf(3) C function). The biggest one I've encountered is writing to a full disk. The return value is how many characters were written. In an ideal world, data = "Hello" * 1000 results = print(data) assert len(results) == len(data) but if your disk is nearly full and you're redirecting data to it: $ python myprog.py > output.txt it's feasible that you instruct print() to send 5000 characters but only 4000 of them get written to the disk. You might want to check that condition and handle it in some more graceful way. -tkc -- https://mail.python.org/mailman/listinfo/python-list
