(11 ratings)
• Readability. Python makes it almost impossible to write obfuscated code. White space is used to delimit blocks, ensuring obvious block structure. The syntax is clean, with a consistent calling structure for modules and functions.
• Taste. Linux has yet to break through to on-every-desktop popularity. Those who are using it now tend to be the more sophisticated and discerning computer users. For some of them, like Eric Raymond, Python is their preferred language because it is an elegant, clean programming language. Others, like Mark Lutz, the author of Programming Python (see Resources), prefer it because "Python looks designed, not accumulated".
• Object support. Python enables you to be an object-oriented developer without paying for a heavy, system programming-level syntax like you have to pay for in a language like Java or C++.
• Development speed. As a rapid prototyping language, with strong support for GUI toolkits like Tk and GTK, Python lets you create full-featured solutions very quickly. If those solutions suffer from performance problems, it is very easy to plug in C replacements for the performance-critical components on a piece-by-piece basis.
• Interoperability. Linux is a great glue operating system. It is used most often in situations where you would find at least one other type of operating system, usually Windows. Python is very portable code, with interpreters available for all common, and many uncommon, operating systems. So you can develop code on Linux and deploy the same code throughout your system. You can even use it in embedded systems that support a Java Virtual Machine (JVM) by using JPython.
• Reusability. Linux is known for its modular design at the kernel level, just as Unix is known for its many small tools. Python also uses small, well crafted components, called modules. Modules are very easy to design and use, which encourages formal and informal code libraries. Perl has the advantage in formal public code repositories, though, as there is yet no equivalent to the Comprehensive Perl Archive Network (CPAN) for Python.
• Reliability. The Python community encourages high-quality coding standards. An example is the common practice of writing modules that contain their own test routines. These routines, which start with
if __name__ == '__main__':are executed only if the module is run as a stand-alone program. If the module is called from another program, as is usually the case, this test routine is skipped.
• No compile/link step. Python is a byte-compiled language as well as an interpreted language. This means that the first time the Python interpreter executes a program or a module, it is translated into byte code. This byte code is written to disk as .pyc. Then, when the program or module is executed again, the interpreter checks to see if there is a .pyc file with a more recent timestamp than the .py file. If one exists, it skips the byte-compilation step and reads the compiled file from disk. This can save a lot of execution time.
• Rich class libraries. Library modules are available for most common programming tasks, including full POSIX-compliant routines, several different math libraries, support for several different GUI toolkits, support for CGI programming and HTML and XML generation and parsing, just to name a few. The standard list of modules is available at Python.org (see Resources) as a small part of the excellent documentation available there.
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