[Tutor] What style do you call Python programming?

[Sarma Tangirala]

On 9 December 2011 21:44, Steven D'Aprano <steve at pearwood.info> wrote:

> Sarma Tangirala wrote:
>
>  The point is its a scripted language.
>>
>
> Define "scripted language". (Scripting language?)
>
>
>
I meant scripting language. :)


>
>  Most of what you want to do should be
>> about a line. Python is derived from the idea of scripted languages
>> wherein
>> constructs like loops and functions were added for more control.
>>
>
> I don't understand what you mean by "should be about a line". If your idea
> is that Python is an interpreter that reads the source code line by line,
> interpreting then executing each one in turn, you couldn't be more wrong.
> Python uses a compiler that generates byte-code, then executes it in a
> virtual machine, just like (for example) Java. The CPython compiler and
> virtual machine is the reference implementation; the PyPy implementation is
> a JIT compiler which can approach the speed of optimized C code, and in a
> very few cases, actually beat it.
>
>
Well, what I meant was the way you write things like list comprehension. I
agree, that comment gave a completely incorrect picture. Sorry about that.


> If Python is a "scripting language", it is a scripting language which can
> perform video processing on the fly:
>
> http://morepypy.blogspot.com/**2011/07/realtime-image-**
> processing-in-python.html<http://morepypy.blogspot.com/2011/07/realtime-image-processing-in-python.html>
>
>
>
Scripting language not in the true sense. My bad.


>
>  The main
>> idea of programming in python is not essentially writing a functions but
>> rather like shell scripting, one line of syntax at a time.
>>
>
> I can't imagine why you think that is the "main idea" for programming in
> Python. Even in true scripting languages like bash, the use of functions is
> strongly recommended. For anything but the simplest script, you are better
> off encapsulating code into functions or classes.
>
> Of course Python can be used to write simple scripts without functions.
> And complex scripts with functions. And "glue" code to interface between
> libraries written in C or Fortran. And major applications with tens or
> hundreds of thousands of lines of code, dozens of modules, hundreds of
> classes and functions. And everything in between.
>
>
>
I disagree here. Writing bigger pieces of code warrant the use of functions
not the other way around. What I was trying to say was that in C you'd have
to use a main function and in Java a public class in your code. In python
it is not a business of using functions as the OP had mentioned.  As to the
"main idea", I think I could have worded that a bit better.

I'm really sorry if what I posed before was annoying crap. :)


>
> --
> Steven
>
>
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-- 
Sarma Tangirala,
Class of 2012,
Department of Information Science and Technology,
College of Engineering Guindy - Anna University
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