use decimal.Decimal instead of float to store amounts of money

weboob/tools/capabilities/bank/transactions.py

@@ -18,6 +18,7 @@
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
 
+from decimal import Decimal
 import re
 import datetime
 
@@ -53,9 +54,9 @@ class FrenchTransaction(Transaction):
         debit = self.clean_amount(debit)
 
         if len(debit) > 0:
-            self.amount = - float(debit)
+            self.amount = - Decimal(debit)
         else:
-            self.amount = float(credit)
+            self.amount = Decimal(credit)
 
     def parse(self, date, raw):
         """

weboob/tools/config/iniconfig.py

@@ -21,6 +21,7 @@
 from __future__ import with_statement
 
 from ConfigParser import RawConfigParser, DEFAULTSECT
+from decimal import Decimal
 import logging
 import os
 
@@ -70,7 +71,7 @@ class INIConfig(IConfig):
     def save(self):
         def save_section(values, root_section=self.ROOTSECT):
             for k, v in values.iteritems():
-                if isinstance(v, (int, float, basestring)):
+                if isinstance(v, (int, Decimal, float, basestring)):
                     if not self.config.has_section(root_section):
                         self.config.add_section(root_section)
                     self.config.set(root_section, k, unicode(v))