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The Perl Object Environment (POE) is a library of Perl modules written in the Perl programming language by Rocco Caputo et al. . From CPAN: "POE originally was developed as the core of a persistent object server and runtime environment.
The effect of Perl modules are usually limited to the current scope in which it was loaded. It is common for Perl modules to have embedded documentation in Perl's Plain Old Documentation format. POD imposes little structure on the author. It is flexible enough to be used to write articles, web pages and even entire books such as Programming Perl.
This comparison of programming languages compares how object-oriented programming languages such as C++, Java, Smalltalk, Object Pascal, Perl, Python, and others manipulate data structures. Object construction and destruction
In a talk at the YAPC::Europe 2005 conference and subsequent article "A Timely Start", Jean-Louis Leroy found that his Perl programs took much longer to run than expected because the perl interpreter spent significant time finding modules within his over-large include path. [120] Unlike Java, Python, and Ruby, Perl has only experimental support ...
The path length of a simple conditional instruction would normally be considered as equal to 2, [citation needed] one instruction to perform the comparison and another to take a branch if the particular condition is satisfied. The length of time to execute each instruction is not normally considered in determining path length and so path length ...
Impatient Perl – for readers with previous programming experience. Learn Perl in about a week. Learning Perl the Hard Way – for people who know another programming language. Higher-Order Perl – advanced programming in Perl; Perl phrasebook – compare equivalent examples of Perl and Python code, on the Python Wiki; Perl scripts
^d Although Perl doesn't have records, because Perl's type system allows different data types to be in an array, "hashes" (associative arrays) that don't have a variable index would effectively be the same as records. ^e Enumerations in this language are algebraic types with only nullary constructors
XCB.pm - Perl module implementing bindings to XCB. xpyb - The Python binding to the X Window System using XCB. As of June 2013, it does not support Python 3. Provided by freedesktop.org. xcffib - Another Python binding which supports Python 2 & 3 as well as several more X extensions than xpyb.