A more succinct way would be:
str(x).encode()
In fact the outer call to ‘bytes’ in 'bytes(str.encode(str(x)))' is a no-op,
and python strings are objects which have an ‘encode' method, so no need call
the class method ’str.encode’.
Another possible way is
f"{x:d}".encode()
or
"{:d}".format(x).encode()
which is more “defensive”, in the sense that the conversion fails if x is not
an integer. In fact “str(x)” is defined for almost any imaginable object in
python, and could return anything. Therefore it is better to be a little more
verbose, and be explicit on the fact that here we are interested in a decimal
integer.
Another variant, in which we accept a float value could be
f"{round(x):d}".encode()
or
f"{x:.0f}"
but possibilities are endless.
Bye and thank you for sharing.
Stefano
> On 14 Oct 2020, at 15:08, Mick Sulley <[email protected]> wrote:
>
> I had a bit of trouble with this and thought it worth sharing the solution.
>
> With Python2 and pyownet I could use
>
> owp.write('/settings/timeout/directory', 60)
>
> but with Python3 that throws an error, TypeError: 'data' argument must be
> binary. I can use
>
> owp.write('/settings/timeout/directory', b'60')
>
> but if I want to use a variable for the data the format which works is -
>
> x = 60
> owp.write('/settings/timeout/directory', bytes(str.encode(str(x))))
>
> There may be other ways to do it but that works for me.
>
> Mick
>
>
>
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