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

modules/creditmutuel/backend.py

@@ -19,6 +19,8 @@
 
 from __future__ import with_statement
 
+from decimal import Decimal
+
 from weboob.capabilities.bank import ICapBank, AccountNotFound, Recipient, Account
 from weboob.tools.backend import BaseBackend, BackendConfig
 from weboob.tools.value import ValueBackendPassword
@@ -78,7 +80,7 @@ class CreditMutuelBackend(BaseBackend, ICapBank):
         try:
             assert account.isdigit()
             assert to.isdigit()
-            amount = float(amount)
+            amount = Decimal(amount)
         except (AssertionError, ValueError):
             raise AccountNotFound()
 

modules/creditmutuel/pages.py

@@ -18,6 +18,7 @@
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
 
+from decimal import Decimal
 import re
 
 from weboob.tools.browser import BasePage
@@ -70,7 +71,7 @@ class AccountsPage(BasePage):
                         balance += c
                     if c == ',':
                         balance += '.'
-                account.balance = float(balance)
+                account.balance = Decimal(balance)
                 l.append(account)
             #raise NotImplementedError()
         return l
@@ -135,7 +136,7 @@ class OperationsPage(BasePage):
                         balance += c
                     if c == ',':
                         balance += '.'
-                operation.amount = float(balance)
+                operation.amount = Decimal(balance)
                 yield operation
 
     def next_page_url(self):