This article will be about a topic that can be used across platforms, such as Linux, Windows and Mac.
Last time, we looked at one of Python’s built-in XML parsers. In this article, we will look at the fun third-party package, lxml from codespeak. It uses the ElementTree API, among other things. The lxml package has XPath and XSLT support, includes an API for SAX and a C-level API for compatibility with C/Pyrex modules. […]
Python: Parsing XML with lxml Read More »
If you’re a long time reader, you may remember that I started programming Python in 2006. Within a year or so, my employer decided to move away from Microsoft Exchange to the open source Zimbra client. Zimbra is an alright client, but it was missing a good way to alert the user to the fact
Python: Parsing XML with minidom Read More »
If you’re new to wxPython but not new to XML, you might find this article useful to you. Why? Because wxPython supports XRC, an XML file format that describes the GUI in XML, duh. In fact, wxPython’s Documentation & Demos package includes an editor just for creating and manipulating these files that is called, XRCed.
wxPython: An XRCed Tutorial Read More »
One of my first self-imposed projects at my job was to recreate a certain annoying application that was a Frankenstein monster: a Microsoft Access file with a VBA GUI. For the most part, the application didn’t even have a database. Anyway, part of the application allowed the user to type in an amount for a
Python: Converting Numbers to Words Read More »
Earlier this year, I was tasked with creating an application that would download information from our organization’s website using Python. The tricky part was that it would be encrypted, gzipped and the payload would be JSON. Could Python do all that? Well, that’s what I wanted to find out. Now it’s time for you to
Downloading Encrypted and Compressed Files with Python Read More »
The wxPython project is one of the most popular and easy to use Python GUI toolkit. It wraps the popular C++ wxWidgets project using SWIG. It is also the only cross-platform toolkit that I am aware of that uses the native widgets on each platform wherever possible (for better or for worse). Some like to
Whether you’re new to Python, been using it for a few years or you’re an expert, knowing how to use Python’s introspection capabilities can help your understanding of your code and that new package you just downloaded with the crappy documentation. Introspection is a fancy word that means to observe oneself and ponder one’s thoughts,
Python 101: Introspection Read More »
The other day, I was tasked with finding a way to get a list of all running processes on a Windows XP virtual machine. I was also supposed to include information about how much CPU and memory each process used. Fortunately, this didn’t have to be a remote script, but one that could be run
How to Find and List All Running Processes with Python Read More »
Some people learn through doing it, others are better with visual stimuli. At least, that’s what we’re told. So in the spirit of what we’ve been taught, we’re going to take a look at the visual half of the equation and see how we can make graphs with wxPython. You may not know this, but
wxPython: PyPlot – Graphs with Python Read More »
This week, I finished editing another book for Packt Publishing. The book’s name is Python Graphics Cookbook by Mike Ohlson de Fine (I think). You may wonder why I don’t know if de Fine is the author. Well, Packt thinks that its Technical Editors shouldn’t know that information. In fact, Packt is so cagey (and
Book Preview: Python Graphics Cookbook Read More »
Back in March of this year, I wrote a simple tutorial on Reportlab, a handy 3rd party Python package that allows the developer to create PDFs programmatically. Recently, I received a request to cover how to do tables in Reportlab. Since my Reportlab article is so popular, I figured it was probably worth the trouble
Reportlab Tables – Creating Tables in PDFs with Python Read More »
Accessing databases with Python is a simple process. Python even provides a sqlite database library that’s built into the main distribution (since 2.5). My favorite way to access databases with Python is to use the 3rd party package, SqlAlchemy. SqlAlchemy is an object-relational mapper (ORM), which means that it takes SQL constructs and makes them
SqlAlchemy: Connecting to pre-existing databases Read More »
When I began learning Python, one of the first things I needed to know how to do was open a file. Now, the term “open a file” can mean different things depending on the context. Sometimes it means to actually open the file with Python and read from it, like with a text file. Other
Python 101: How to Open a File or Program Read More »
This is the last article of my “Build a Binary Series”. If you haven’t done so already, be sure to check out the others. For our finale, we are to look at Andrea Gavana’s wxPython-based GUI2Exe, a nice graphical user interface to py2exe, bbfreeze, cx_Freeze, PyInstaller and py2app. The latest release of GUI2Exe is 0.5.0,
Another GUI2Exe Tutorial – Build a Binary Series! Read More »
Python 3 Object Oriented Programming By Dusty Phillips Amazon Packt
Book Review: Python 3 Object Oriented Programming Read More »