better regex, avoid Python keyword name collisions: WHERE = type == "btrfs" or a_pass == "1" other usage: WHERE = type == "btrfs" or a_pass == "1"; r[0] = "TROLL!!!"

add TODO comments, n.b. this is very experimental code

local variables named like attributes → simple queries: WHERE = a == "c" or b == "f" or r[0] == "aX"

fix class name

modify records from Python: r[1] = "hello from Python"

pass record data from C++ to Python and filtering: WHERE = record[0] == "a"

relational restriction possible through Python: WHERE = False

execute arbitrary python code, e.g. relpipe-tr-python 'fstab' 'import sys; print("hello from Python", file=sys.stderr)'

Python included

project skeleton