Code_Aster command files do not require any mandatory indent at all as long as we do not use conventional Python inside them, however a command must start at the beginning of a line without any indent. 2 Code_Aster is case sensitive: ’TRUE’, ’true’ and ’truE’ point to 3 different objects while ’True’ is a Python reserved word. And a concept can be named ’modele’, while ’MODELE’ is a Code_Aster reserved word. 3 More generally the .comm file follows the Python syntax. 4 The names created on the left hand side on the “=” sign.