a concept of code structuring

abstract

#   ________________________________________________________
#   A title                                             ####
# this is a level 1 section. l1 sections are are high-level 
# blocks.

# [your code here]

##  ........................................................
##  A sub title                                         ####
# this is a level 2 section. These sections are medium-level 
# blocks and sub-blocks of l1 sections.

# [your code here]

### . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
### Another one                                         ####
# level 3 sections, reflecting th lowest level of 
# granularity.

# [your code here]