Hello Everyone While writing python code, I frequently come across the need to do certain tasks based on combined conditions. Much of the task for all the sub-conditions are common but some are specific to one or more of these sub-conditions. A simplified example: ########################## Code ########################## if (color == BLUE and count == 20) or (color == RED and count % 5 == 0): rotate_the_wheel() # Common to the two sub-conditions if(color == BLUE and count == 20): # First sub-condition set_signal() if(color == RED and count % 5 == 0): # Second sub-condition clear_signal() proc_post_rotate() # Common to the two sub-conditions I am not sure if there is a better way to do this. If not, maybe there can be an extension to the language, which would allow marking a sub-condition just like we mark a sub-expression in a regular expression. Tentative syntax for this could be ({} marks the sub-condition and \number refers back to it): ########################## Code ########################## if {(color == BLUE and count == 20)} or {(color == RED and count % 5 == 0)}: rotate_the_wheel() if(\1): # First marked condition set_signal() if(\2): # Second marked condition unset_signal() proc_post_rotate() And like sub-expressions, the nesting of marked sub-condions should also be possible: ########################## Code ########################## if {{(color == BLUE and count == 20)} and {value == 20}} or {(color == RED and count % 5 == 0)}: if(\1):# Refers to the entire subcondition {{(color == BLUE and count == 20)} and {value = 20}} proc1() if(\2):# Refers to sub-subcondition {value == 20} This will not only avoid the repetition of sub-conditions, but make code readable since something like \1 will give an immediate indication of a sub-condition that's defined earlier. Please let me know something similar is already implemented. Even otherwise, all your thoughts, inputs and criticism are welcome. Thanks and best regards Shrinivas Kulkarni