[Info-vax] VMS Python: Calling sys$trnlnm()

[Simon Clubley]

On 2020-03-27, Dave Froble <davef at tsoft-inc.com> wrote:
> On 3/27/2020 7:58 AM, VAXman- at SendSpamHere.ORG wrote:
>> ... and all of this is considered readable and maintainable? :(
>>

Yes. Mostly.

The struct stuff requires a little care to make sure you don't create
something unreadable, but the rest of it is very readable Python.

You will need to look at the documentation to see how to call trnlnm()
but that's no different from calling it from C.

Calling trnlnm() by itself without any prefix looks a little unusual
to someone used calling system services from C or another language,
but it's documented right there in the from statement at the top of
the program where that was imported from.

>
> WHAT!
>
> You didn't notice all those comments in the example code to explain 
> what's happening ?
>
> Oh, wait ....
>
> Ok, I'll admit, I cannot read Python, nor do I understand Python ...
>

Python has some very nice high level datatype constructs which allows
you to write clean and highly functional code without a lot of
boilerplate code.

Here are some examples from the Python 2 manual:

https://docs.python.org/2/tutorial/datastructures.html

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.