15,406 Topics
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 | All this snippet does is asks you for some information and then uses it and some math to guess your age. Pretty simple but I have to start somewhere.  |
 | The wxPython GUI toolkit has a number of calendar widgets, but the one that is most customizable is the wx.lib.calendar widget. Here we expanded it to colour the weekends and the holidays supplied by a dictionary of 'month: list of holiday dates in month' pairs. Since some holiday dates can … |
 | The wxPython GUI toolkit has a nice numeric LED widget (LEDNumberCtrl from the wx.gizmos module) that is used here for displaying the current time in very visible 7 segment LED color display. It also shows the application of the time module and wx.Timer(). The code is simple as far as … |
| | Problem Description ----------------------- I tried to download my favourite site containing essays on history (leeching) with depth 4. For some reason say my download tool problem, I realized I could not download all the files. I had with me a list of files (list1) I downloaded and list of files … |
 | This simple Python code uses the Tkinter GUI toolkit and the Python Image Library (PIL) to create a program that allows you to grab an image of the display screen (or portion of it) and save it to an image file. Unfortunately, the ImageGrab.grab() method only works on a Windows … |
| | 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 [URL="http://www.ASTRO.COM"]WWW.ASTRO.COM[/URL]. The coordinates are in a format like 35n13 (35 degrees, 13 minutes north). The … |
| | There are times when you have to layout widgets on a window area fairly well spaced apart. To do this with pack() or grid() will be more than frustrating, for these occasions place() with its absolute coordinates comes to the rescue. Here is some Python/Tkinter GUI code showing you how … |
| | The normal XOR crypting is used with a small base64 twist to produce printable crypted text. |
| | The surface or canvas established with wx.PaintDC() can be used to draw a number of shapes like lines, rectangles and circles. The snippet shows you how to select colors and then draw a few simple shapes. Use help(wx.PaintDC) to get information about the many things you can use this surface … |
| | The name says it all, I think. You have a nested list, you want to flatten it (e.g. because you want to count the occurence of an element), this function is all you need ;) |
| | The small images you put on buttons and such are nice, but a real pain if you have to attach all those image files to your program. Python's base64 encoding module makes it easy to convert the binary image code to a string that you can simply make part of … |
 | Ever have two lists in python and you want to know what how much of one list the other contains? This code snippet will help you do that. |
| | This little program uses Python and it's module pygame to do some sprite type animation. The rectangle that contains the image is moved and bounced within the window's frame. Pretty crude, since the whole screen frame is erased for each move. Actually it works smooth enough, and is relatively flicker … |
| | Sometime in my childhood biology class I heard that the fancy colors of butterfly wings aren't really true colors, but interference patterns. This program claims to create interference patterns using a series of 3d sine waves using Python's popular pygame module. The whole contrivance is pretty to look at, and … |
| | Nothing fancy. just shows a simple monthly calendar in a Tkinter label. The trick is to use a fixed font so spaces take up the same area as numbers. |
| | The assumption is, that the typical workweek starts with Monday and ends with Friday. This is something the average working bloke has to live with (unless you work for a bank or the government). This little code will spit out a listing of all the workdays of a given month. … |
| | Inspired by Bumsfeld's color tester, and wanting to give my students some practice at interpreting color strings, I wrote a little Tkinter program that asks the user to chose one of six buttons whose color most closely matches the color string printed at top. Comments welcome, and does anyone know … |
| | Yes, the Python module 'zipfile' can handle an archive of files. This snippet shows you how to pack a PKZIP format zip file with several files and then unpack these archived files to individual files again. |
| | So I needed a way to represent a line in Python. My first stab was to create a function dynamically. But classes are so much ... classier, so here's a simple implementation of a line object, with plenty of room for additional methods. The line is created as l = … |
| | For those of you who think that an interpreted language like Python has to be slow, here is a small surpise. This snippet will draw a fair sized Mandelbrot set in a relatively short time. I cheated just a little, drawing the set in only black and white. Hey, nothing … |
| | Here is an example of a random spin button using a button surrounded by labels to create the feeling of a spin animation. This example uses the Tkinter GUI and lets you select numbers 1 to 6. If your game requires more then this, just add additional labels. You are … |
| | The FlashWindow component of wxPython will play those nice animated flash files found on the internet. They have file extension .swf usually. |
| | Let's say you had a list of full names, where the name would consist of a title, followed by first, middle and last name, or maybe just title and last name. You can sort this list by last name only, by creating a temporary list of sublists of type [last … |
| | This module is a Python Library to support all IP2Location™ database products. It has been optimized for speed and memory utilization. Developers can use the API to qeury all IP2Location™ binary databases for applications written in Python. |
| | This little snippet combines a Tkinter GUI application with sound from the pygame mixer. The snippet should do fairly well across platforms. I tested it on a Windows XP machine, but let me know your experience with other platforms. |
| | This game takes a random word from a list, gives you five prompts to guess letters in the word, and then it shows you a "masked word," filling in the letters you've guessed. Say the word is "hockey" and the user guesses: 'h,' 'e,' 't,' 'r,' and 's.'The masked word … |
| | This shows you how to draw a colorful bar graph of a data set using the Tkinter canvas and rectangles. An attempt has been made to use most of the canvas area for the graph. The bars are spaced and labeled with the corresponding value. The x-axis is simply the … |
| | The snippet shows the use of a list of class instances to form a sortable and searchable database for solvents, or for that matter other chemicals. The list can be expanded and all the needed data added at the same time. |
| | You can use the Tkinter canvas and the canvas.create_line() function to draw a line plot of a mathematical function. The canvas.create_line() function accepts a list of x, y points that you can create within a for loop. The resulting plot is centered and can be stretched along the x and … |
| | The wxPython GUI tool makes it very simple to create nice looking analog clock. The analog clock component was put into simple dialog frame and can be moved about the screen. |
| | Another famous fractal called the Sierpinski Triangle named after Polish mathematician Waclaw Sierpinski. He seemed to have played around with it the most. To state it simple, you start with an equilateral triangle and then form smaller triangles by connecting the midpoints of each of the sides. Some folks shade … |
| | A list of tuples is easy to sort for items in the tuples. This snippet shows you how to sort a (character, frequency) tuple either by character or by frequency. One useful example would be the sorting and display of a list of (player, score) tuples, you might find in … |
| | This is a short code example using the function os.stat() to get some of the basic file information. Things like file size, times the file was created (Windows), last modified, and last accessed. The program uses a dictionary in an interesting way to store and display the information. The times … |
| | There are situations in Python code when a function is used as an object rather then a function call. Handling arguments becomes a mild problem, that can easily be handled by wrapping the function object and its arguments. One common way is the use of a curry function or class. … |
| | This Python code shows a way to retrieve a picture from a web page and save it to a file. |
| | Some computer languages have a goto statement to break out of deeply nested loops. Python has chosen not to implement the much abused goto. There are other, really more elegant, ways to accomplish the same outcome. Here are three examples. |
| | Here we search a Python script file (or other text file) for one certain string, and copy any files containing this string to another folder. |
| | Search for a file given its name and the starting search directory. The search is limited to a set depth of subdirectories. Python makes this easy to do. |
| | This Python code will search for given filename starting with given directory. It will also search all the subdirectories in the given directory. The search will end at the first hit. |
| | Code snippet to show you how to verify exit events from wxPython using dialog window. One event is from menu exit and the other from frame exit (x symbol in corner). |
| | This short code shows how to indicate the mouse-over event on wxPython button, similar to the mouse-over in web pages. Button changes colour when mouse pointer is over its area. |
| | The myth is around that while loop is faster than the corresponding for loop. I checked it out with Python module timeit, and came to surprising conclusion. This snippet can easily be modified to time any of your functions you write.  |
| | Yet Another Calculator using wxPython, smaller, but more advanced than the previous one. Wrote this one to test the Curry class, but it didn't work well. So there is no curry there. I found out that one has to be careful with the eval() function. If you write 012 instead … |
| | Let mathematics do your art work! It is amazing how a simple mathematical formula can draw very intricate shapes. Here we draw a fractal tree on a Python Image Library (PIL) blank image, and save the finished drawing as an image file in one of the popular formats. Look at … |
| | The wx.BitmapButton shows an image, great for those folks who think that a picture is worth a thousand words. The snippet gives an example how to load the image, size the button, and put the image on the the button. |
| | The program takes text and establishes dictionary of character:frequency. This dictionary is then presented sorted by character. Since it is important to show the most frequent characters, two methods are given to present dictionary sorted by frequency. Should all be very good for learning Python. |
| | Just a small Python program to calculate monthly payments and other costs. I have compared it with some of the calculators available from many of the online mortgage companies, and results seem to match. |
| | In this snippet we are playing around with wxPython's buttons, showing you how to bind the mouse click event, enable and disable, show and hide the buttons. Each button also has a tool-tip (hint) associated with itself.  |
| | If you want a variable in a C function to retain its last assigned value, you simply declare it as static. Python does not have static variables, but you can impersonate one in different ways. The default list argument is my preferred option. Here are some examples. |
| | Py2Exe takes your Python code file and packages it into an executable file that you can distribute to a client that does not have Python installed. The executable file contains your byte code, all the required modules and the Python interpreter. It is not a small file. The snippet is …  |
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