3. An Informal Introduction to Python — Python v2.7.2 documentation In the following examples, input and output are distinguished by the presence or absence of prompts (>>> and …): to repeat the example, you must type everything after the prompt, when the prompt appears; lines that do not begin with a prompt are output from the interpreter. Note that a secondary prompt on a line by itself in an example means you must type a blank line; this is used to end a multi-line command. Many of the examples in this manual, even those entered at the interactive prompt, include comments. Comments in Python start with the hash character, #, and extend to the end of the physical line. A comment may appear at the start of a line or following whitespace or code, but not within a string literal. Let’s try some simple Python commands. 3.1.1. The interpreter acts as a simple calculator: you can type an expression at it and it will write the value. The integer numbers (e.g. 2, 4, 20) have type int, the ones with a fractional part (e.g. 5.0, 1.6) have type float. 3.1.2.
designcoding Rhino Python Tutorials – Plethora Project Plethora-Project.com is an initiative to accelerate computational literacy in the frame of architecture and design. It aligns with the "show me your screens" motto of the TopLap live-coding group attempting to get rid of Obscurantism in digital design. Directed by Jose Sanchez Contact me at : jomasan@gmail.com Bio: Jose Sanchez is an Architect / Programmer / Game Designer based in Los Angeles, California. He is partner at Bloom Games, start-up built upon the BLOOM project, winner of the WONDER SERIES hosted by the City of London for the London 2012 Olympics.
PEP 8 -- Style Guide for Python Code Code should be written in a way that does not disadvantage other implementations of Python (PyPy, Jython, IronPython, Cython, Psyco, and such).For example, do not rely on CPython's efficient implementation of in-place string concatenation for statements in the form a += b or a = a + b. This optimization is fragile even in CPython (it only works for some types) and isn't present at all in implementations that don't use refcounting. In performance sensitive parts of the library, the ''.join() form should be used instead. This will ensure that concatenation occurs in linear time across various implementations.Comparisons to singletons like None should always be done with is or is not, never the equality operators.Also, beware of writing if x when you really mean if x is not None -- e.g. when testing whether a variable or argument that defaults to None was set to some other value. The other value might have a type (such as a container) that could be false in a boolean context!
Generative Art - Autonomy: Cellular Automata The most familiar single example of an autonomous agent, to you at least, is the one staring at this page. You, dear reader, with your behavior on any particular day defined by a complex mix of biology, psychology, and the comfortableness of your footwear, are an autonomous object, creating interesting patterns in the data you create. Most everything you do these days leaves a data trail: every purchase you make, every point you earn on your store card, every link you click, and every journey you take. The cards in your wallet are writing your economic autobiography, your tweets and SMSs are writing an ASCII diary as part of a social map, and the phone in your pocket is drawing a GPS picture of your daily psycho-geography. To familiarize you with the concept of autonomy and the emergent complexity of this breed of object, we’ll play one of the early parlor games of computer science: cellular automata. In the 1970s, the field of computer science was obsessed with cellular automata (CA).
The Best Way to Learn Python Python is more popular than ever, and is being used everywhere from back-end web servers, to front-end game development, and everything in between. Python is a true general purpose language and is quickly becoming a must-have tool in the arsenal of any self-respecting programmer. But Python isn't popular just because it's popular. At the time of this writing, there are two main versions of Python in circulation: Python 2.7 and Python 3.2. Wikibooks is always a great source to learn something new, and Python is no exception. You won't find a better source of information than the official python.org documentation. The content tends to be more technical than wikibooks, which will be helpful later on as you progress through the language. For beginners, the biggest difference between Python 2 and Python 3 will most likely be that Python 2 can use print without parentheses. TheNewBoston's playlists are always great, and you can learn a whole host of languages.
6. Built-in Exceptions — Python v3.1.3 documentation In Python, all exceptions must be instances of a class that derives from BaseException. In a try statement with an except clause that mentions a particular class, that clause also handles any exception classes derived from that class (but not exception classes from which it is derived). Two exception classes that are not related via subclassing are never equivalent, even if they have the same name. The built-in exceptions listed below can be generated by the interpreter or built-in functions. User code can raise built-in exceptions. The built-in exception classes can be sub-classed to define new exceptions; programmers are encouraged to at least derive new exceptions from the Exception class and not BaseException. The following exceptions are used mostly as base classes for other exceptions. exception BaseException The base class for all built-in exceptions. exception Exception All built-in, non-system-exiting exceptions are derived from this class. exception ArithmeticError
Python Introduction First, off Python usually requires some setup by downloading the Python IDLE. The Python IDLE is basically a text editor that lets you execute Python code. If you want to use Python as a server-side language, you certainly can. Python can output HTML just like other languages can, but Python is more commonly used as a module rather than intertwined like some PHP or ColdFusion. You can see right off the bat, that we use print() a whole lot. See how simple that was? For a more tangible and better look into the Python language, consider reading the following book. Your code will execute in this window. Let's explore some more tutorials or topics! Next Tutorial Previous Tutorial If you enjoyed this resource, support me by sharing this page with others.