Short IT recipes

The solution was to manually specify where `rpc/rpc.h` was for configuration: CPPFLAGS="-I/usr/include/tirpc" ./configure --prefi...

sudo apt-get install python3-venv python3 -m venv ~/mypy34env/ source ~/mypy34env/bin/activate And then install python packages using pip...

Below is a recipe that I use to used to install and set-up virtual environment of Python 3.4.x in Ubuntu 14.04 x64.

In Python 3, dicom files can be read, analysied and processed using Wand which is Python binding for ImageMagic . The example below shows h...

Pillow support for JPEG2000 comes from openjpeg 2 library. Unfortunatly, Ubuntu's libopenjpeg2 package is not version 2 of the openjpe...

This is an example in Python 3.4 running in 64-bit Ubuntu 14.04 of a canvas that can be scrolled with mouse wheel and dragged around with ...

I was debugging my script and I found that a number that starts from zero is different that the number without zero. This is because these n...

JSON (i.e. JavaScript Object Notation) is a popular way of exchanging data in a string format. It can also be used to provide setup paramet...

I have Matlab 2008b running on CentOS 5.2 server. I wanted to be able to execute Matlab commands from python. After a search I found mlabwra...

Usually I don't write any reviews or any opinions on linux distros. However, I have to make an exception. The reason is that I have just...

LS-DYNA, is an part of ANSYS software and it is a general purpose transient dynamic finite element program capable of simulating complex rea...

Just an example of making thread workers, that executes tasks from the task queue. I used it to check if a PC box with multicore processor ...

The problem described in the previews post about 16-bit images in python can be overcome by converting image into numpy array, operating in...

Converting 8-bit gray-scale level images to numpy array, and generating a 8-bit gray-scale level image from array.

To check if a string represents a number, this may be used: def isnum(s): try: float(s) except ValueError: return False return T...

SPSS is a data mining and statistical analysis software. Resent versions (v14 - v17) allow to use Python to control SPSS. This can be quit...

The algorithm below fits an ellipse into the polygon (or set of points) in such a way that the area of the ellipse fitted is equal to the ar...

Just as an example, I present some function that I translated to Cython . I also show how big the change in speed of my application was. The...

The following Python script draws an ellipse. from numpy import linspace from scipy import pi,sin,cos def ellipse(ra,rb,ang,x0,y0,Nb=50): ...

The os.system() function executes operating systems's command. When the functin returns code 32512, it means that the command has not be...