I work with a lot of dictionaries at my job. Sometimes the dictionaries get really complicated with lots of nested data structures embedded within them. Recently I got a little tired of trying to remember all the keys in my dictionaries so I decided to change one of my dictionaries into a class so I […]
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The people at Packt Publishing recently sent me an ebook copy of Raúl Garreta and Guillermo Moncecchi’s book, Learning scikit-learn: Machine Learning in Python to review. Machine learning isn’t a topic I’m very familiar with, but I gave the book a shot as it sounded interesting. I’ll start off with my quick review for those
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Python’s logging module has lots of options. In this article, we will looks at the logging module’s ability to create Rotating Logs. Python supports two types of rotating logs: Rotate logs based on size (RotatingFileHandler) Rotate the logs based on some time interval (TimedRotatingFileHandler) Let’s spend some time learning how each of these two types
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What’s the most popular language of 2013? According to CodeEval.com, it’s Python! If you compare that with TIOBE, Python is only at #8, but at least it’s still in the top ten! Hopefully Python will continue to gain in the ranks and be used in many new places in 2014. You might also find the
Most Popular Language on CodeEval.com? Python! Read More »
One of my friends on the wxPython Google Group asked how to catch any exception that happens in wxPython. The problem is complicated somewhat because wxPython is a wrapper on top of a C++ library (wxWidgets). You can read about the issue on the wxPython wiki. Several wxPython users mentioned using Python’s sys.excepthook to catch
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Sometimes when you are coding, you want to know how long it takes for a particular function to run. This topic is known as profiling or performance tuning. Python has a couple of profilers built into its Standard Library, but for small pieces of code, it’s easier to just use Python’s timeit module. Thus, timeit
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I’ve been thinking about creating a simple downloading script with wxPython for quite a while. Then I saw someone on StackOverflow asking about how to do it and I decided it was time to figure it out. Downloading a file with Python is trivial. I wrote about a couple of different ways to do that
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A few years ago, a fellow named Zed Shaw created a website called Learn Python the Hard Way that a lot of people praised. The website is made up of lots of short exercises that help beginner programmers learn the various nuances of Python but in bit-sized chunks. He kept updating it from time to
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The topic of generators has been covered numerous times before. However, it’s still a topic that a lot of new programmers have trouble with and I would hazard a guess that even experienced users don’t really use them either. Python generators allow developers to lazily evaluate data. This is very helpful when you are dealing
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Editor’s note: This is a guest post from Yasoob Khalid who authors the Free Python Tips blog So hi there guys! I hope you are fine. So what is in this post? Today we will be writing a cleanup script. The idea for this post came from Mike Driscoll who recently wrote a very useful
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The wxPython toolkit provides an alternative to using Sizers for layout that is known as “sized_controls”. These controls or widgets are basically top-level widgets (like frame, panel, dialog, etc) that have sizing logic built into them. This article will cover all four types of sized_controls. They are as follows: SizedPanel SizedScrolledPanel SizedFrame SizedDialog The SizedScrolledPanel
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wxPython 2.9 introduced the world to a new type of sizer that can take widgets and automatically make them “wrap” around as you resize the frame. That sizer is known as wx.WrapSizer. For some reason, it is relatively unknown, so we’ll spend a few minutes going over how to use it in this article. To
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The Python programming language added the super() type back in version 2.2. For some reason, it’s still a topic that a lot of beginners don’t understand. One of my readers recently asked me about it and since I don’t really use it, I decided to do some research in the hopes of understanding its usage
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Python has a neat little concept called a property that can do several useful things. In this article, we will be looking into how to do the following: Convert class methods into read-only attributes Reimplement setters and getters into an attribute In this article, you will learn how to use the builtin class property in
Python 201: Properties Read More »
I’ve been reading a lot about Python’s magic methods lately and recently read about a couple of ways to create an immutable class. An immutable class does not allow the programmer to add attributes to an instance (i.e. monkey patch). It’s a little easier to understand if we actually look at a normal class first.
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