Arguably the best kept secret in the Flask ecosystem ;)

... ale báli jste se zeptat na hodině ;)

My favorite and most useful IPython magic functions.

How to monkey-patch functions in imported libraries in R.

How to embed a "responsive" (i.e. vertically resizing) iframe in a web page.

Semantic versioning is a good idea, but it would be better to use an explicit keyword system to signal (non-)breaking changes in library versions.