Fixing broken library for python 2 because of open() encoding kwarg (…

…#34)

* Fixed `open()` function in `setup.py` that broke on python 2.7.3 because of `encoding` keyword argument. The fix calls `io` native library that ensures backward compatibility for the `open()` built-in function. 
* Removed useless `requirements.txt` that caused the dependency bot to raise security alerts (because of some known vulnerabilities on django 3.0.X)

django_rest/deserializers/base.py

@@ -121,7 +121,7 @@ class Deserializer(six.with_metaclass(DeclarativeFieldsMetaclass, BaseDeserializ
 
 
 class AllPassDeserializer(Deserializer):
-    """ Deserializer that accepts any given data. the clean always returns
+    """Deserializer that accepts any given data. the clean always returns
     the data received as input.
     """
 

django_rest/permissions.py

@@ -6,7 +6,7 @@
 
 
 class MetaOperand(type):
-    """ Metaclass that allows its instances (permission classes) to use logical
+    """Metaclass that allows its instances (permission classes) to use logical
     using logical operators (AND, OR, ..) with the follwing syntax:
 
         FinalPermClass = (Perm1 | Perm2) & ~Perm3
@@ -43,7 +43,7 @@ def __invert__(first_class):
 
 
 class BinaryOperator(object):
-    """ Class that describes how to build a permission class as a result of a
+    """Class that describes how to build a permission class as a result of a
     Binary operators only. The current class is intended to be inherited by operators
     like: `AND`, `OR`, `XOR`, etc.
 
@@ -108,7 +108,7 @@ def has_permission(self, request, view):
 
 
 class UnaryOperator(object):
-    """  Class that describes how to build a permission class as a result of a
+    """Class that describes how to build a permission class as a result of a
     Unary operators only. The current class is intended to be inherited by operators
     like: `NOT` and Identity operators.
 
@@ -168,7 +168,7 @@ def has_permission(self, request, view):
 
 
 class AND(six.with_metaclass(MetaOperand, BinaryOperator)):
-    """ AND Logical operator class.
+    """AND Logical operator class.
 
     Example of use:
 
@@ -186,7 +186,7 @@ def calculate(first_function, second_function, *args, **kwargs):
 
 
 class OR(six.with_metaclass(MetaOperand, BinaryOperator)):
-    """ OR Logical operator class.
+    """OR Logical operator class.
 
     Example of use:
 
@@ -204,7 +204,7 @@ def calculate(first_function, second_function, *args, **kwargs):
 
 
 class XOR(six.with_metaclass(MetaOperand, BinaryOperator)):
-    """ XOR (eXclusive OR) Logical operator class.
+    """XOR (eXclusive OR) Logical operator class.
 
     Example of use:
 
@@ -222,7 +222,7 @@ def calculate(first_function, second_function, *args, **kwargs):
 
 
 class NOT(six.with_metaclass(MetaOperand, UnaryOperator)):
-    """ NOT Logical operator class.
+    """NOT Logical operator class.
 
     Example of use:
 

django_rest/serializers/base.py

@@ -4,7 +4,7 @@
 
 
 class Field(object):
-    """ The Field class is used to define what attributes will be serialized.
+    """The Field class is used to define what attributes will be serialized.
 
     It maps a property or function on an object to a value in the serialized result.
     Subclass this to make custom fields. For most simple cases, overriding
@@ -37,7 +37,7 @@ def __init__(self, attr_name=None, call=False, label=None, required=True):
 
     def to_value(self, value):
         # type:(Any) -> Any
-        """ Transforms the serialized value. It could be used for cleaning
+        """Transforms the serialized value. It could be used for cleaning
         and validating the value serialized by the current field. For example,
         to implement an `int` field, the Field.to_value() method will looks like:
 
@@ -60,7 +60,7 @@ def _is_to_value_overridden(self):
 
     def as_getter(self, serializer_field_name, serializer_cls):
         # type:(str, type) -> Optional[Callable]
-        """ Returns a function that fetches an attribute from an object.
+        """Returns a function that fetches an attribute from an object.
 
         If `None` is returned, the default getter defined in `Serializer.default_getter`
         will be used instead.

django_rest/serializers/fields.py

@@ -74,7 +74,7 @@ def _is_valid_field_instance(field_instance):
 
 def ListField(field_instance):
     # type:(Field) -> Field
-    """ Allows to apply the Field.to_value() method on an iterable of values,
+    """Allows to apply the Field.to_value() method on an iterable of values,
     instead of a single value. The same purpose could be achieved with `MethodField()`,
     but it'll be just too annoying.
     Example:
@@ -190,7 +190,7 @@ def _is_primitive_const(cls, constant):
 
 
 class MethodField(Field):
-    """ A Field class that calls a method on the `Serializer` class.
+    """A Field class that calls a method on the `Serializer` class.
 
     This is useful if a Field needs to serialize a value that may come from multiple
     attributes on the same object. For example:

django_rest/serializers/serializers.py

@@ -71,7 +71,7 @@ def __new__(cls, name, bases, attrs):
 
 
 class Serializer(six.with_metaclass(SerializerMeta, SerializerBase)):
-    """ The Serializer class is used as a base for custom serializers.
+    """The Serializer class is used as a base for custom serializers.
 
     A Serializer class is also a subclass of Field class, which allows nesting
     Serializers. A new serializer is defined by subclassing the `Serializer` class,
@@ -134,7 +134,7 @@ def to_value(self, instance):
     @property
     def data(self):
         # type:() -> Dict[str, Any]
-        """ Get the serialized data from the Serializer instance. The data is cached
+        """Get the serialized data from the Serializer instance. The data is cached
         for further accesses.
         """
         # Cache the data for next time `.data` is called.
@@ -144,7 +144,7 @@ def data(self):
 
 
 class DictSerializer(Serializer):
-    """ DictSerializer serializes python `dicts` instead of objects.
+    """DictSerializer serializes python `dicts` instead of objects.
 
     `DictSerializer` uses `operator.itemgetter` to fetch data from the object
     to serialize, while `Serializer` class uses `operator.attrgetter`.

setup.py

@@ -1,11 +1,12 @@
+from io import open
 from setuptools import find_packages, setup
 
 with open("README.md", "r", encoding="utf-8") as f:
     long_description = f.read()
 
 setup(
     name="django-rest",
-    version="0.8.6",
+    version="0.8.7",
     url="https://github.com/alaouimehdi1995/django-rest/",
     license="MIT",
     description="Tiny, lightweight, blazing fast REST library for django",

tests/requirements/requirements.in

@@ -10,7 +10,7 @@ django==2.*; python_version >= '3' and python_version < '3.6'
 django==3.*; python_version >= '3.6'
 enum34; python_version < '3'
 flake8
-mock; python_version < '3'
+mock
 pudb
 pytest
 pytest-cov