You have assigned a bytes value to the name bytes:
>>> bytes([10, 20, 30, 40])
b'\n\x14\x1e('
>>> bytes = bytes([10, 20, 30, 40])
>>> bytes([10, 20, 30, 40])
Traceback (most recent call last):
File "", line 1, in
TypeError: 'bytes' object is not callable
bytes is now bound to the value b'\n\x14
> On 1 Dec 2021, at 16:01, Jen Kris wrote:
>
> Thanks for your comment re blocking.
>
> I removed pipes from the Python and C programs to see if it blocks without
> them, and it does.
> It looks now like the problem is not pipes.
Ok.
> I use fork() and execv() in C to run Python in a child
