Experiments with regular expressions. A good introduction is available at Google's Python classes. One can also look at the chapter into Dive into Python. An online regular expression tester is available here.
a, X, 9, < -- ordinary characters just match themselves exactly. The meta-characters which do not match themselves because ...
Here are some notes on two modules of the standard library that can help to develop small scripts. The module argparse helps to parse the arguments to the script while the module configparser is useful for reading a particular textfile configuration.
The argparse module of the standard library ...
I had to convert a bunch of xlsx files to csv. A simple solution is obtained thanks to the libraries in http://www.python-excel.org/. More specifically, I only had to use xlrd. It is as simple as
wb = xlrd.open_workbook(file)
sh = wb.sheet_by_name('Sheet1')Now the sh object ...
A colleague of mine asked me about a simple demonstration of Hamming code. It is inspired by this link, but unfortunately the code is not available anymore. Below is what I did.
For encoding and decoding to and from binary number representations
When using numpy, it is sometimes useful to do part of calculations using matrices rather than arrays. Thus it is interesting to be able to convert between the two types. This is easily done as follows, where we use the * operator in functions definitions. This ...
The first thing to do is to create an account on Github pages and then follow the directions. This drives to
repogh-pages branchthen the content will be available (after a few minutes) in http://username.github.io/repo/
The point ...
This is a text that describes that I am doing. First, I launch the pylab magic, with inline graphics.
%pylab inline
x=randn(100)
plot(x)
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