14th March 2022

Coding⚑

Python⚑

Pytest⚑

• New: Run tests in a random order.

  pytest-random-order is a pytest plugin that randomises the order of tests. This can be useful to detect a test that passes just because it happens to run after an unrelated test that leaves the system in a favourable state.

  To use it add the --random-order to your pytest run.

  It can't yet be used with pytest-xdist though :(.

Operative Systems⚑

Linux⚑

Linux Snippets⚑

• New: Clean old kernels.

  The full command is

  dpkg -l linux-* | awk '/^ii/{ print $2}' | grep -v -e `uname -r | cut -f1,2 -d"-"` | grep -e [0-9] | grep -E "(image|headers)" | xargs sudo apt-get -y purge
  

  To test what packages will it remove use:

  dpkg -l linux-* | awk '/^ii/{ print $2}' | grep -v -e `uname -r | cut -f1,2 -d"-"` | grep -e [0-9] | grep -E "(image|headers)" | xargs sudo apt-get --dry-run remove
  

  Remember that your running kernel can be obtained by uname -r.