Why would I learn Python over other languages?
roy at panix.com
Thu Jul 8 14:26:25 CEST 2004
"Charif Lakchiri" <charif at kuc.biglobe.ne.jp> wrote:
> It is easy to learn?
Yes. Simplicity and ease of learning were major design criteria. There
is also a large and active user community who can provide help,
guidance, and the occasional group hug.
> Does it support GUI programming?
Yes. There are several GUI libraries available. I don't do much GUI
programming, so I'll leave it to others to describe those.
> Does it support server-side programming, say for web apps?
Yes. There are a variety of ways to do this. At the low-level, there's
CGI module. There's a mod-python for Apache. There's a sample HTTP
server that comes with the system which you can extend on your own. I
recently saw mention of a JSP container for writing servlets in Python.
> Does it have extensions and libraries, say for DB connectivity, serial com
> or network programming...?
Yes. There is a standard DB API, and adapters for all of the major
databases (Oracle, Sybase, MySql, etc).
> Can it be used for administrative tasks, say as perl...?
Yes. There are modules for interacting with the file system and
operating system (process control, etc). If you want, you can execute
external commands and capture their output, just like popen in perl.
> Also, can it be compiled to native code?
Yes. The compiler is called "psyco", and it's very easy to use.
> Also much appreciated would be simple comparisons with say JAVA (my other
> candidate), and pointers to sites and docs where to start.
A quick Java. vs. Python comparison:
Java uses a C-like syntax, Python uses it's own. The Python syntax is
very easy to learn.
Java uses static typing, Python uses dynamic typing That means Java
programs are full of typecasts and variable declarations and useless
drek like that. On the other hand, since you've pushed a lot of
checking off to run time, Python takes a performance penalty.
Java is very much into data hiding, with private/protected/public
keywords to declare classes and variables. In Python, everything is
public by default. There are some ways to do weak data hiding if you
Both compile to byte-code which runs on a virtual machine. The
underlying VM's are similar enough that there is a version of Python
which compiles to java byte code and runs on a JVM! One big difference
is that the compile step is explicit in Java, but happens automatically
and behind the scenes in Python. This means you can just fire up an
interactive Python session and type code at it to try things out, which
turns out to be incredibly useful.
Both are object-oriented. Java is a bit more extreme in this philosophy
(i.e. everything is a class). In Python, you can write non-OO code if
you want, and that's often easier for quickie one-off scripts such as
are common in sysadmin work.
If you are just starting out, I would definately learn both.
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