Programming Leftovers

posted by Roy Schestowitz on Aug 31, 2023

• SciPy T-Test

  The “ttest_ind()”, “ttest_1samp()”, and “ttest_rel()” methods of the “scipy.stats” module perform one sample, two samples or paired sample t-test in Python.

• Python String oct() Function

  The “oct()” function is used in Python to convert/transform the decimal, binary and hexadecimal values into octal values.

• Mike Hommey: Hacking the ELF format for Firefox, 12 years later ; doing better with less

  (I haven't posted a lot in the past couple years, except for git-cinnabar announcements. This is going to be a long one, hold tight)

  This is quite the cryptic title, isn't it? What is this all about? ELF (Executable and Linkable Format) is a file format used for binary files (e.g. executables, shared libraries, object files, and even core dumps) on some Unix systems (Linux, Solaris, BSD, etc.). A little over 12 years ago, I wrote a blog post about improving libxul startup I/O by hacking the ELF format. For context, libxul is the shared library, shipped with Firefox, that contains most of its code.

• Andrew Cater: Building a mirror of various Red Hat oriented "stuff"

  Building a mirror for rpm-based distributions.
  

  I've already described in brief how I built a mirror that currently mirrors Debian and Ubuntu on a daily basis. That was relatively straightforward given that I know how to install Debian and configure a basic system without a GUI and the ftpsync scripts are well maintained, I can pull some archives and get one pushed to me such that I've always got up to date copies of Debian and Ubuntu.

  I wanted to do something similar using Rocky Linux to pull in archives for Almalinux, Rocky Linux, CentOS, CentOS Stream and (optionally) Fedora.

• Meet the 2023 FreeBSD Google Summer of Code Students: Aymeric Wibo

  The FreeBSD Project is proud to have participated in the Google Summer of Code program since its inception in 2005. As we near the completion of the 2023 season, the Foundation asked a few of our GSoC students to share more about themselves and their experience working with the Project.

• Meet the 2023 FreeBSD Google Summer of Code Students: Sudhanshu Mohan Kashyap

  The FreeBSD Project is proud to have participated in the Google Summer of Code program since its inception in 2005.