TextAlignment is the vertical alignment, while Justification is the horizontal alignment. here, get_text was passed the vertical, while it expected the horizontal. This caused the alignment of a Label to be wrong in the resulting SVG (e.g. in a TechDraw draft view). This seems to have been broken since SVG support for Labels was first introduced in commit d6f8ded4ca (Initial work, only text (no lines)).
2020 May
These modules provide supporting functions for dealing with the custom "scripted objects" defined within the workbench.
The functions are meant to be used in the creation step of the objects,
by the "make functions" in draftmake/, but also by the graphical
"Gui Commands" modules in draftguitools/ and drafttaskpanels/.
These functions should deal with the internal shapes of the objects,
or other special properties. They should not be very generic;
if they are very generic then they are more appropriate to be included
in the modules in draftutils/.
For more information see the thread: [Discussion] Splitting Draft tools into their own modules