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A class that enables a client to securely update an existing file,
including the ability to make an automated backup version.
This code shows how to call the low-level POSIX interface of Python, and handle the return values with the struct module.
This code shows how to load a stylesheet from "virtual" URLs, by detecting a special URL scheme.
People coming from C, C++ or Perl might miss the so-called ternary operator ?: (condition ? then-expr : else-expr). It's most often used for avoiding several lines of code and temporary variables for very simple decisions, like printing the plural...
Forking a daemon on Unix requires a certain sequence of system calls. Since Python exposes a full POSIX interface, this can be done in Python, too.
This code is part of MoinMoin (http://moin.sourceforge.net/) and converts Python source code to HTML markup, rendering comments, keywords, operators, numeric and string literals in different colors.
It shows how to use the built-in...
This function allows you to do "from module import name", where both "module" and "name" are dynamic values (i.e. expressions or variables). For example, this can be used to implement a "plugin" mechanism to...
While the find() and count() string functions can check for string occurences, there is no function to check on the occurence of a set of characters.
The following class shows how to implement the singleton pattern in Python. A singleton
is a class that makes sure only one instance of it is ever created. Typically such classes
are used to manage resources that by their very nature...
The following function creates a map of all members of a class, navigating ALL of the base classes in the correct order. This can be used for various purposes, like checking whether a certain method is defined anywhere in a class hierarchy.
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