This script takes a Google Play sales report CSV as input and outputs a plain text summary in the same folder. No guarantees for accuracy or validity.

taxman_android.py

'''
Copyright (c) 2013 Martin Jonasson, grapefrukt games

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
'''
from __future__ import print_function

import csv
from decimal import Decimal
import locale
import os
import sys
import platform

onWindows = platform.system() == 'Windows'

if not len(sys.argv) == 2 :
	raise Exception('This script expects exactly one argument: A path to a Google Play CSV file')

filename = sys.argv[1]
out_filename, ext = os.path.splitext(filename)

# redirect output to textfile
f = open(out_filename +'.txt', 'w');
sys.stdout = f

if not ext == '.csv' :
	raise Exception('Input has to be .csv')

# Locale settings, tweak as needed
# annoyingly, windows has different locale strings
if onWindows :
	# http://msdn.microsoft.com/en-us/library/39cwe7zf(vs.71).aspx
	locale.setlocale(locale.LC_ALL, 'swedish')
	def printf(str, *args):
		print(str % args, end='\n')
else :
	locale.setlocale(locale.LC_ALL, 'sv_SE')
	def printf(str, *args):
		print(str % args, end='\r\n')

input_file = csv.DictReader(open(filename))

transactions = {};

for row in input_file:
	key = row['Description']
	if key not in transactions:
		transactions[key] = {'Charge' : Decimal(0), 'Google fee' : Decimal(0), 'Tax' : Decimal(0), 'Charge refund' : Decimal(0), 'Google fee refund' : Decimal(0)}

	transactions[key][row['Transaction Type']] += Decimal(row['Amount (Merchant Currency)'])

count_taxed_sales = 0
count_untaxed_sales = 0
count_refunds = 0

sum_taxed_sales = Decimal(0)
sum_untaxed_sales = Decimal(0)
sum_tax = Decimal(0)
sum_fees = Decimal(0)
sum_fee_refund = Decimal(0)
sum_sales_refund = Decimal(0)

for key, row in transactions.iteritems() :
	if row['Tax'] > 0 :
		sum_taxed_sales += row['Charge']
		sum_tax += row['Tax']
		count_taxed_sales += 1
	else :
		sum_untaxed_sales += row['Charge']
		count_untaxed_sales += 1

	sum_fees += row['Google fee']
	sum_fee_refund += row['Google fee refund']
	sum_sales_refund += row['Charge refund']

	if row['Google fee refund'] > 0 :
		count_refunds += 1


printf("Sales report for Google Play Apps " + out_filename[-6:-2] + '-' + out_filename[-2:])
printf("")
printf("Taxed sales:        " + str(locale.currency(sum_taxed_sales,   grouping=True)).rjust(13) + str('({0} units)'.format(locale.format('%d', count_taxed_sales, grouping=True))).rjust(16))
printf("Tax:                " + str(locale.currency(sum_tax,           grouping=True)).rjust(13))
printf("Untaxed sales:      " + str(locale.currency(sum_untaxed_sales, grouping=True)).rjust(13) + str('({0} units)'.format(locale.format('%d', count_untaxed_sales, grouping=True))).rjust(16))
printf("Google fees:        " + str(locale.currency(sum_fees,          grouping=True)).rjust(13))
printf("Refunds:            " + str(locale.currency(sum_sales_refund,  grouping=True)).rjust(13) + str('({0} units)'.format(locale.format('%d', count_refunds, grouping=True))).rjust(16))
printf("Google fee refunds: " + str(locale.currency(sum_fee_refund,    grouping=True)).rjust(13))
printf("")
printf("Sum:                " + str(locale.currency(sum_taxed_sales + sum_untaxed_sales + sum_tax + sum_fees + sum_sales_refund + sum_fee_refund, grouping=True)).rjust(13) + str('({0} units)'.format(locale.format('%d', count_taxed_sales + count_untaxed_sales - count_refunds, grouping=True)).rjust(16)))