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There are some pretty fancy things you can do with strings in Python. You can append, convert, justify, join, split, slice, and list selected files of a folder. I just give you a small sample here. (View Snippet)
We take a look at the various functions of module time, counting seconds and milliseconds, measuring the time a simple for-loop takes, inspect a list of time data and ways to display it in a useful manner. An attempt is made to find the day of the week, given a date a few years old. Like, what... (View Snippet)
This is a test to get the Python snippets going! For those of you who are scared of snakes, the language is named after the TV program, not the snake. Python is an interpreted language, but programs to compile/combine the code to an exe file are available (Py2Exe). The latest version of Python... (View Snippet)
You may want to call Python's list the answer to other computer languages' arrays. Here we take a look at the things you can do with lists, create an empty list, list the attributes and methods, load, append, count, insert, join, pop, remove, remove duplicate items, reverse, search, sort, ... (View Snippet)
This snippet explores the change of a hexadecimal (base 16) string to a denary (base 10) integer and the reverse. Interestingly Python allows the representation of the hexadecimal string in two different forms. For instance 255 can be changed to 'FF' (also 'ff') or '0xff'. Any of these... (View Snippet)
Converting a decimal integer (denary, base 10) to a binary string (base 2) is amazingly simple. An exception is raised for negative numbers and zero is a special case. To test the result, the binary string is converted back to the decimal value, easily done with the int(bStr, 2) function. (View Snippet)
A dictionary in Python is an unordered set of key:value pairs. I show you how to initialize, create, load, display, search, copy and otherwise manipulate this interesting container. Like the name says, it is the closest thing to a dictionary. (View Snippet)
Just a little mathematical exercise in geography, namely the use of longitude and latitiude coordinates to calculate the distance between two given cities. You can obtain the coordinates for just about any earthly city from WWW.ASTRO.COM. The coordinates are in a format like 35n13 (35 degrees, 13... (View Snippet)
This snippet takes a look at Python file handling. Different ways to write and read text files, zipped files and memory streams. Investigates how to access only part of a file. Also explores the "read" of a binary image file and performs a hex-dump of the data. (View Snippet)
Python is entirely object oriented and using classes is made relatively simple. Beginners have a certain angst when it comes to using classes. There is a hump in the learning curve, which I like to overcome with this example. Inheritance really makes sense and saves you a lot of extra code... (View Snippet)
