Stéfan van der Walt

Search headers in org-mode

· emacs orgmode

In org-mode, I often have the need to jump to a top-level heading matching some word.

Since an org-mode buffer can be searched just like any other, I can simply invoke forward search with C-s, but this will match all occurrences of the text, instead of limiting the search to …

Python & Matplotlib on OSX

· python

One day, we will hopefully have a grand unified build and package management system for Python where everything is free & open and Just Works (TM). Until then, you have two options:

brew Python + pip

  1. brew install python3
  2. pyvenv -v ~/envs/py3
  3. source ~/envs/py3/bin/activate
  4. pip install matplotlib

Pros …

VPN-only access to the internet

· linux

tl;dr A firewall setup that allows traffic to leave only via the VPN

A few days ago, I noticed that my outbound email wasn’t being delivered—it seems as if my ISP blocks access to some outbound ports. An easy workaround is to route traffic through the work …

Visualizing and pruning the docker image tree

· docker

Visualizing the Docker image dependency tree is a useful way of checking image sizes and inter-image dependencies. Since images occupy a lot of disk space, we may also want to prune unused images.

Visualizing image dependencies

In version 1.2.0 of Docker, the image dependency tree is available via …

SciPy2013 Proceedings

· scipy, python

The talks for the 12th (fantastic) Python in Science conference just concluded, and I am happy to announce the conference proceedings.

This may come as a surprize to some, since in the past we have been unable to publish the proceedings in a timely manner. So, what changed?

Review process …

scikits-image 0.7

· image processing, scipy, python, science

We’re happy to announce the 7th version of scikits-image!

Scikits-image is an image processing toolbox for SciPy that includes algorithms for segmentation, geometric transformations, color space manipulation, analysis, filtering, morphology, feature detection, and more.

For more information, examples, and documentation, please visit our website.

New Features

It’s been …