refactor validation functions

test_cerberus.py

@@ -1,36 +1,7 @@
 #!/usr/bin/env python3
 
 from cerberus import Validator
-from schwifty import IBAN, BIC
-import datetime
-
-def valid_iban(field, value, error):
-    try:
-        IBAN(value)
-        return True
-    except ValueError:
-        error(field, 'not a valid IBAN')
-
-def valid_bic(field, value, error):
-    try:
-        BIC(value)
-        return True
-    except ValueError:
-        error(field, 'not a valid BIC')
-
-def iso_date(field, value, error):
-    try:
-        datetime.datetime.strptime(value, "%Y-%m-%d")
-        return True
-    except ValueError:
-        error(field, 'not a valid ISO 8601 date')
-
-def valid_money_amount(field, value, error):
-    try:
-        float(value)
-        return True
-    except (ValueError, TypeError):
-        error(field, 'not a valid money value')
+from validators import *
 
 document = {
             'finanzdaten': 

validators.py

@@ -0,0 +1,30 @@
+from schwifty import IBAN, BIC
+import datetime
+
+def valid_iban(field, value, error):
+    try:
+        IBAN(value)
+        return True
+    except ValueError:
+        error(field, 'not a valid IBAN')
+
+def valid_bic(field, value, error):
+    try:
+        BIC(value)
+        return True
+    except ValueError:
+        error(field, 'not a valid BIC')
+
+def iso_date(field, value, error):
+    try:
+        datetime.datetime.strptime(value, "%Y-%m-%d")
+        return True
+    except ValueError:
+        error(field, 'not a valid ISO 8601 date')
+
+def valid_money_amount(field, value, error):
+    try:
+        float(value)
+        return True
+    except (ValueError, TypeError):
+        error(field, 'not a valid money value')