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Python - some common questions answered in code examples Archive [source] [source] [source] [source] and [data] try block, even if you are breaking or returning: [source] [source] [source] [source] [source] of an example that uses a static method, comparators, operator overriding, polymorphism and interitance, etc. And [source] a simpler example that loads data into Python objects using a wholesale factory method. The data for that latter is [here] .[here] for details of our public courses in Python. We also run courses on site (for groups of 4 or more delegates) which can be tailored to meet your needs, and scheduled to suit your requirements too.
Some other articles Y112 - Objects - Intermediate Nesting decorators Defining an object that is a modified standard type in Python with in Python - examples of use, and of defining your own context Object and Static methods - what is the difference; example in Python 3 Setting up and tearing down with the Python with keyword Deciding whether to use parameters, conditional statements or subclasses Spike solution, refactoring into encapsulated object methods - good design practise A good example of recursion - a real use in Python Changing what operators do on objects - a comparison across different programming languages Object factories in C++, Python, PHP and Perl Python base and inherited classes, test harness and unit testing - new examples Python Properties - how and why Really Simple Class and Inheritance example in Python Inheritance, Composition and Associated objects - when to use which - Python example Backquote, backtic, str and repr in Python - conversion object to string Metaclasses (Python) and Metatables (Lua) Static variables in functions - and better ways using objects A demonstration of how many Python facilities work together A list of special method and attribute names in Python This article Defining static methods in Python Should Python classes each be in their own file? The Light bulb moment when people see how Object Orientation works in real use Python decorators - your own, staticmethod and classmethod Mixins example in Python Multiple inheritance in Python - complete working example The Multiple Inheritance Conundrum, interfaces and mixins Methods that run on classes (static methods) in Python How do I set up a constant in Python? TypeError: super() argument 1 must be type, not classobj (Python) Python - fresh examples of all the fundamentals Calling base class constructors Equality, sameness and identity - Python Using a utility method to construct objects of different types - Python Python - formatting objects What are factory and singleton classes? __new__ v __init__ - python constructor alternatives? Practical polymorphism in action Pieces of Python Comparison of Object Oriented Philosophy - Python, Java, C++, Perl Think about your design even if you don't use full UML Class, static and unbound variables Overloading of operators on standard objects in Python Using a Python dictionary as a holder of object attributes Y109 - Exceptions Elements of an exception in Python - try, except, else, finally Python varables - checking existance, and call by name or by value? Exception, Lambda, Generator, Slice, Dict - examples in one Python program Reporting the full stack trace when you catch a Python exception How many times ... has this loco headed west through Tenby? - Python exceptions Error checking in a Python program - making your program robust via exceptions Pressing ^C in a Python program. Also Progress Bar. Exceptions - a fail-safe way of trapping things that may go wrong Insurance against any errors - Volcanoes and Python Using an exception to initialise a static variable in a Python function / method This article Handling unusual and error conditions - exceptions Robust user input (exception handling) example in Python Python - fresh examples of all the fundamentals Python - using exceptions to set a fallback UnboundLocalError - Python Message Trying things in Python Nested exceptions in Python Exceptions in Python Y107 - Dictionaries Sorting a dict in Python Unique word locator - Python dict example Sorting in Python 3 - and how it differs from Python 2 sorting Setting up and using a dict in Python - simple first example Exception, Lambda, Generator, Slice, Dict - examples in one Python program Collections in Python - list tuple dict and string. Multiple identical keys in a Python dict - yes, you can! Finding all the unique lines in a file, using Python or Perl Football league tables - under old and new point system. Python program. Learning more about our web site - and learning how to learn about yours Python sets and frozensets - what are they? Passing optional and named parameters to python methods This article Python dictionaries - reaching to new uses Looking up a value by key - associative arrays / Hashes / Dictionaries Python - fresh examples of all the fundamentals Using a list of keys and a list of values to make a dictionary in Python - zip Python dictionary for quick look ups Python collections - mutable and imutable Can't resist writing about Python Y105 - Functions, Modules and Packages From and Import in Python - where is the module loaded from? Embedding more complex code into a named block Nesting decorators Recursion in Python - the classic example What are callbacks? Why use them? An example in Python What is the difference between a function and a method? Reading command line parameters in Python A good example of recursion - a real use in Python Python - even named code blocks are objects Multiple yields and no loops in a Python generator? Python functions - an introduction to how they work Python varables - checking existance, and call by name or by value? Exception, Lambda, Generator, Slice, Dict - examples in one Python program vargs in Python - how to call a method with unknown number of parameters Optional positional and named parameters in Python Default local - a good choice by the author of Python Static variables in Python? Python timing - when to use a list, and when to use a generator Functions are first class variables in Lua and Python Finding all the unique lines in a file, using Python or Perl Python Packages - groupings of modules. An introduction Static variables in functions - and better ways using objects Passing optional and named parameters to python methods Catching the fishes first? Passing parameters to Python functions - the options you have Returning multiple values from a function call in various languages - a comparison Using an exception to initialise a static variable in a Python function / method This article Passing a variable number of parameters in to a function / method Program for reliability and efficiency - do not duplicate, but rather share and re-use Optional and named parameters to Python functions/methods Python - access to variables in the outer scope Global and Enable - two misused words! Good example of recursion in Python - analyse an RSS feed Sample code with errors in it on our web site Optional parameters to Python functions Multiple returns from a function in Python Conversion of OSI grid references to Eastings and Northings Dynamic code - Python Optional and named parameters in Python What to do with a huge crop of apples Anonymous functions (lambdas) and map in Python Sharing variables with functions, but keeping them local too - Python Global - Tcl, PHP, Python Python Script - easy examples of lots of basics Returning multiple values from a function (Perl, PHP, Python) A better alternative to cutting and pasting code Function / method parameters with * and ** in Python It's the 1st, not the 1nd 1rd or 1th. Sludge off the mountain, and Python and PHP Python - A list of methods Recursion in Python Python - function v method Dynamic functions and names - Python Do not duplicate your code Cottage industry or production line data handling methods Python modules. The distribution, The Cheese Shop and the Vaults of Parnassus. Python - block insets help with documentation Python's Generator functions Difference between import and from in Python What is a callback? Code and code maintainance efficiency Call by name v call by value Lambdas in Python Python generator functions, lambdas, and iterators Distance Learning Variable Scope