How to avoid excessive parameter passing?

Question

I am developing a medium size program in python spread across 5 modules. The program accepts command line arguments using OptionParser in the main module e.g. main.py. These opt

Answer 1

Create objects of types relevant to your program, and store the command line options relevant to each in them. Example:

import WidgetFrobnosticator
f = WidgetFrobnosticator()
f.allow_oncave_widgets = option_allow_concave_widgets
f.respect_weasel_pins = option_respect_weasel_pins

# Now the methods of WidgetFrobnosticator have access to your command-line parameters,
# in a way that's not dependent on the input format.

import PlatypusFactory
p = PlatypusFactory()
p.allow_parthenogenesis = option_allow_parthenogenesis
p.max_population = option_max_population

# The platypus factory knows about its own options, but not those of the WidgetFrobnosticator
# or vice versa.  This makes each class easier to read and implement.