add python3 support

 - replace iteritems with items
 - cast map into list to avoid python3 changes on iterables
 - This is a temp change, until we make a permanent fix
 - fix pypandoc exception

README.md

@@ -29,8 +29,9 @@ to query you want to make on the column name on the queryset.
 # validations.py
 
 ```python
+import six
 
-from filters.schema import base_query_param_schema
+from filters.schema import base_query_params_schema
 from filters.validations import (
     CSVofIntegers,
     IntegerLike,
@@ -41,7 +42,7 @@ from filters.validations import (
 players_query_schema = base_query_param_schema.extend(
     {
         "id": IntegerLike(),
-        "name": unicode,
+        "name": six.text_type,  # Depends on python version
         "team_id": CSVofIntegers(),  # /?team_id=1,2,3
         "install_ts": DatetimeWithTZ(),
         "update_ts": DatetimeWithTZ(),

docs/README.md

@@ -29,8 +29,9 @@ to query you want to make on the column name on the queryset.
 # validations.py
 
 ```python
+import six
 
-from filters.schema import base_query_param_schema
+from filters.schema import base_query_params_schema
 from filters.validations import (
     CSVofIntegers,
     IntegerLike,
@@ -41,7 +42,7 @@ from filters.validations import (
 players_query_schema = base_query_param_schema.extend(
     {
         "id": IntegerLike(),
-        "name": unicode,
+        "name": six.text_type, # Depends on python version
         "team_id": CSVofIntegers(),  # /?team_id=1,2,3
         "install_ts": DatetimeWithTZ(),
         "update_ts": DatetimeWithTZ(),

example_app/validations.py

@@ -1,26 +1,27 @@
+import six
 
-from filters.schema import base_query_param_schema
+from filters.schema import base_query_params_schema
 from filters.validations import (
     CSVofIntegers,
     IntegerLike,
     DatetimeWithTZ
 )
 
 # make a validation schema for players filter query params
-players_query_schema = base_query_param_schema.extend(
+players_query_schema = base_query_params_schema.extend(
     {
         "id": IntegerLike(),
-        "name": unicode,
+        "name": six.text_type,
         "team_id": CSVofIntegers(),  # /?team_id=1,2,3
         "install_ts": DatetimeWithTZ(),
         "update_ts": DatetimeWithTZ(),
     }
 )
 
-teams_query_schema = base_query_param_schema.extend(
+teams_query_schema = base_query_params_schema.extend(
     {
         "id": IntegerLike(),
-        "name": unicode,
+        "name": six.text_type,
         "player_id": CSVofIntegers(),  # /?player_id=1,2,3
         "install_ts": DatetimeWithTZ(),
         "update_ts": DatetimeWithTZ(),

filters/mixins.py

@@ -1,3 +1,4 @@
+import six
 from voluptuous import Invalid
 from rest_framework.exceptions import ParseError
 
@@ -37,7 +38,11 @@ def __get_queryset_filters(self, query_params, *args, **kwargs):
             except Invalid as inst:
                 raise ParseError(detail=inst)
 
-            for query, value in query_params.iteritems():
+            iterable_query_params = (
+                query_params.iteritems() if six.PY2 else query_params.items()
+            )
+
+            for query, value in iterable_query_params:
                 # [1] ~ sign is used to exclude a filter.
                 is_exclude = '~' in query
                 if query in self.filter_mappings and value:

filters/schema.py

@@ -1,3 +1,4 @@
+import six
 from voluptuous import Schema, ALLOW_EXTRA
 from .validations import (
     IntegerLike,
@@ -8,8 +9,8 @@
 # specific requirements.
 base_query_params_schema = Schema(
         {
-            'q': unicode,
-            'name': unicode,
+            'q': six.text_type,
+            'name': six.text_type,
             'offset': IntegerLike(),
             'limit': IntegerLike(),
             'install_ts': DatetimeWithTZ(),

filters/validations.py

@@ -1,4 +1,5 @@
 # This module is define and keep all generic type of data-validations.
+import six
 import re
 from voluptuous import Invalid
 from django.utils.dateparse import parse_datetime, parse_date
@@ -15,10 +16,10 @@ def IntegerLike(msg=None):
     def fn(value):
         if not (
             isinstance(value, int) or
-            isinstance(value, long) or
             (isinstance(value, float) and value.is_integer()) or
             (isinstance(value, str) and value.isdigit()) or
-            (isinstance(value, unicode) and value.isdigit())
+            ((isinstance(value, unicode) and value.isdigit() or
+            isinstance(value, long)) if six.PY2 else None)
         ):
             raise Invalid(msg or (
                 'Invalid input <{0}>; expected an integer'.format(value))
@@ -39,10 +40,10 @@ def Alphanumeric(msg=None):
     def fn(value):
         if not (
             isinstance(value, int) or
-            isinstance(value, long) or
             (isinstance(value, float) and value.is_integer()) or
             (isinstance(value, str) and value.isalnum()) or
-            (isinstance(value, unicode) and value.isalnum())
+            ((isinstance(value, unicode) and value.isdigit() or
+            isinstance(value, long)) if six.PY2 else None)
         ):
             raise Invalid(msg or (
                 'Invalid input <{0}>; expected an integer'.format(value))
@@ -64,7 +65,7 @@ def StrictlyAlphanumeric(msg=None):
     '''
     def fn(value):
         if not (
-            (isinstance(value, str) or isinstance(value, unicode)) and
+            (isinstance(value, str) or (isinstance(value, unicode) if six.PY2 else None)) and
             re_alphabets.search(value) and
             re_digits.search(value)
         ):
@@ -101,15 +102,15 @@ def CSVofIntegers(msg=None):
     '''
     def fn(value):
         try:
-            if isinstance(value, unicode):
+            if isinstance(value, six.text_type):
                 if ',' in value:
-                    value = map(
+                    value = list(map(
                         int, filter(
-                            bool, map(
+                            bool, list(map(
                                 lambda x: x.strip(), value.split(',')
-                            )
+                            ))
                         )
-                    )
+                    ))
                     return value
                 else:
                     return [int(value)]

setup.py

@@ -6,7 +6,7 @@
 try:
     import atexit
     import pypandoc
-    README = pypandoc.convert('README.md', 'rst')
+    README = pypandoc.convert('README.md', 'rst', 'markdown')
     with open('README.rst', 'w') as f:
         f.write(README)
     atexit.register(lambda: os.unlink('README.rst'))
@@ -19,7 +19,7 @@
 os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))
 
 __name__ = 'drf-url-filters'
-__version__ = '0.2.1'
+__version__ = '0.3.0'
 __author__ = 'Manjit Kumar'
 __author_email__ = 'manjit1727@gmail.com'
 __url__ = 'https://github.com/manjitkumar/drf-url-filters'