Fix indents

contract.py

@@ -1,16 +1,14 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-#from datetime import datetime
 from trytond.model import ModelView, Workflow, ModelSQL, fields
 from trytond.pyson import Eval
 from trytond.pool import Pool
 from trytond.transaction import Transaction
-from trytond import backend
-from sql import Table, Null
+from sql import Null
 
 __all__ = ['StaffContract']
 
-STATES = {'readonly': (Eval('state') != 'draft'),}
+STATES = {'readonly': (Eval('state') != 'draft')}
 
 
 class StaffContract(Workflow, ModelSQL, ModelView):
@@ -39,10 +37,10 @@ class StaffContract(Workflow, ModelSQL, ModelView):
             ], 'Kind', select=True, states=STATES)
     kind_string = kind.translated('kind')
     state = fields.Selection([
-                ('draft', 'Draft'),
-                ('active', 'Active'),
-                ('finished', 'Finished'),
-            ], 'State', readonly=True, select=True)
+            ('draft', 'Draft'),
+            ('active', 'Active'),
+            ('finished', 'Finished'),
+        ], 'State', readonly=True, select=True)
     payment_term = fields.Char('Payment Term', states=STATES)
     comment = fields.Text("Comment", states=STATES)
     position = fields.Many2One('staff.position', 'Position',
@@ -53,21 +51,21 @@ class StaffContract(Workflow, ModelSQL, ModelView):
         super(StaffContract, cls).__setup__()
         cls._order.insert(0, ('number', 'DESC'))
         cls._transitions |= set((
-                ('draft', 'active'),
-                ('active', 'draft'),
-                ('active', 'finished'),
-            ))
+            ('draft', 'active'),
+            ('active', 'draft'),
+            ('active', 'finished'),
+        ))
         cls._buttons.update({
-                'draft': {
-                    'invisible': Eval('state') != 'active',
-                    },
-                'active': {
-                    'invisible': Eval('state') != 'draft',
-                    },
-                'finished': {
-                    'invisible': Eval('state') != 'active',
-                    },
-                })
+            'draft': {
+                'invisible': Eval('state') != 'active',
+            },
+            'active': {
+                'invisible': Eval('state') != 'draft',
+            },
+            'finished': {
+                'invisible': Eval('state') != 'active',
+            },
+        })
         cls._error_messages.update({
             'employee_with_contract_current': ('The employee %s already has a contract in draft or active!'),
             'missing_contract_sequence': ('The contract sequence is missing on configuration!'),
@@ -120,7 +118,7 @@ class StaffContract(Workflow, ModelSQL, ModelView):
         return [bool_op,
             ('number',) + tuple(clause[1:]),
             ('employee',) + tuple(clause[1:]),
-            ]
+        ]
 
     @classmethod
     @ModelView.button