So I wanted to do my taxes. I wrote a 'tax2003' Python module containing
a bunch of stuff like this:
class employer1:
earnings = 12345.67
federal_wh = 1234.56
class employer2:
earnings = 123456.78
federal_wh = 12345.67
class form1040:
# income
wages = employer1.earnings + employer2.earnings
business_income = scheduleC.net_profit
total_income = wages + business_income
# ...
assert line39 > 103000
taxable_income = max(line39 - line40, 0)
# ...
# payments
federal_wh = employer1.federal_wh + employer2.federal_wh
amount_owed = total_tax - total_payments
etc. When I imported this module, I could inspect things like
form1040.amount_owed; I did this interactively with Emacs's python-mode,
which let me just C-c RET to reimport the module; then I could look at
the values of variables. When I was done, though, I wanted to get a
printout of all these values (so I could fill out the actual forms, and
also so I could find any errors I'd made) and delete this module so I
could put my computer back online. So I wrote this function to print
out all the amounts:
import types
def listmod(module, name=None):
if name is None: name = module.__name__
if type(module) in (type(''), type(1), type(1.2)):
print "%s = %s" % (name, module)
else:
for subname in dir(module):
if subname[:2] == '__': continue
obj = getattr(module, subname)
if type(obj) is type(types): continue # no submodules!
listmod(obj, name + '.' + subname)
Then I ran listmod.listmod(tax2003) and got output like:
tax2003.employer1.earnings = 12345.67
tax2003.employer1.federal_wh = 1234.56
...
tax2003.form1040.tax = 22032532
tax2003.form1040.amount_owed = 22030403.8215375
It's not TurboTax, but it keeps me from making any arithmetic errors.
