Update project structure

setup.py

@@ -40,22 +40,15 @@ setup(name='dependency-injector',
       install_requires=requirements,
       packages=[
           'dependency_injector',
+          'dependency_injector.containers',
           'dependency_injector.providers',
       ],
       package_dir={
           '': 'src',
       },
       ext_modules=[
-          Extension('dependency_injector.injections',
+          Extension('dependency_injector.providers.injections',
-                    ['src/dependency_injector/injections.c'],
+                    ['src/dependency_injector/providers/injections.c'],
-                    define_macros=defined_macros,
-                    extra_compile_args=['-O2']),
-          Extension('dependency_injector.utils',
-                    ['src/dependency_injector/utils.c'],
-                    define_macros=defined_macros,
-                    extra_compile_args=['-O2']),
-          Extension('dependency_injector.errors',
-                    ['src/dependency_injector/errors.c'],
                     define_macros=defined_macros,
                     extra_compile_args=['-O2']),
       ],

src/dependency_injector/containers.py

@@ -1,363 +0,0 @@
-"""Dependency injector IoC containers module."""
-
-import six
-
-from dependency_injector import (
-    providers,
-    utils,
-    errors,
-)
-
-
-class DynamicContainer(object):
-    """Dynamic inversion of control container.
-
-    .. code-block:: python
-
-        services = DynamicContainer()
-        services.auth = providers.Factory(AuthService)
-        services.users = providers.Factory(UsersService,
-                                           auth_service=services.auth)
-
-    .. py:attribute:: providers
-
-        Read-only dictionary of all providers.
-
-        :type: dict[str, :py:class:`dependency_injector.providers.Provider`]
-
-    .. py:attribute:: overridden
-
-        Tuple of overriding containers.
-
-        :type: tuple[:py:class:`DynamicContainer`]
-
-    .. py:attribute:: provider_type
-
-        Type of providers that could be placed in container.
-
-        :type: type
-    """
-
-    __IS_CONTAINER__ = True
-
-    def __init__(self):
-        """Initializer.
-
-        :rtype: None
-        """
-        self.provider_type = providers.Provider
-        self.providers = dict()
-        self.overridden = tuple()
-        super(DynamicContainer, self).__init__()
-
-    def __setattr__(self, name, value):
-        """Set instance attribute.
-
-        If value of attribute is provider, it will be added into providers
-        dictionary.
-
-        :param name: Attribute's name
-        :type name: str
-
-        :param value: Attribute's value
-        :type value: object
-
-        :rtype: None
-        """
-        if utils.is_provider(value):
-            _check_provider_type(self, value)
-            self.providers[name] = value
-        super(DynamicContainer, self).__setattr__(name, value)
-
-    def __delattr__(self, name):
-        """Delete instance attribute.
-
-        If value of attribute is provider, it will be deleted from providers
-        dictionary.
-
-        :param name: Attribute's name
-        :type name: str
-
-        :rtype: None
-        """
-        if name in self.providers:
-            del self.providers[name]
-        super(DynamicContainer, self).__delattr__(name)
-
-    def override(self, overriding):
-        """Override current container by overriding container.
-
-        :param overriding: Overriding container.
-        :type overriding: :py:class:`DynamicContainer`
-
-        :raise: :py:exc:`dependency_injector.errors.Error` if trying to
-                override container by itself
-
-        :rtype: None
-        """
-        if overriding is self:
-            raise errors.Error('Container {0} could not be overridden '
-                               'with itself'.format(self))
-
-        self.overridden += (overriding,)
-
-        for name, provider in six.iteritems(overriding.providers):
-            try:
-                getattr(self, name).override(provider)
-            except AttributeError:
-                pass
-
-    def reset_last_overriding(self):
-        """Reset last overriding provider for each container providers.
-
-        :rtype: None
-        """
-        if not self.overridden:
-            raise errors.Error('Container {0} is not overridden'.format(self))
-
-        self.overridden = self.overridden[:-1]
-
-        for provider in six.itervalues(self.providers):
-            provider.reset_last_overriding()
-
-    def reset_override(self):
-        """Reset all overridings for each container providers.
-
-        :rtype: None
-        """
-        self.overridden = tuple()
-
-        for provider in six.itervalues(self.providers):
-            provider.reset_override()
-
-
-class DeclarativeContainerMetaClass(type):
-    """Declarative inversion of control container meta class."""
-
-    def __new__(mcs, class_name, bases, attributes):
-        """Declarative container class factory."""
-        cls_providers = tuple((name, provider)
-                              for name, provider in six.iteritems(attributes)
-                              if utils.is_provider(provider))
-
-        inherited_providers = tuple((name, provider)
-                                    for base in bases if utils.is_container(
-                                        base) and base is not DynamicContainer
-                                    for name, provider in six.iteritems(
-                                        base.cls_providers))
-
-        attributes['cls_providers'] = dict(cls_providers)
-        attributes['inherited_providers'] = dict(inherited_providers)
-        attributes['providers'] = dict(cls_providers + inherited_providers)
-
-        cls = type.__new__(mcs, class_name, bases, attributes)
-
-        for provider in six.itervalues(cls.providers):
-            _check_provider_type(cls, provider)
-
-        return cls
-
-    def __setattr__(cls, name, value):
-        """Set class attribute.
-
-        If value of attribute is provider, it will be added into providers
-        dictionary.
-
-        :param name: Attribute's name
-        :type name: str
-
-        :param value: Attribute's value
-        :type value: object
-
-        :rtype: None
-        """
-        if utils.is_provider(value):
-            _check_provider_type(cls, value)
-            cls.providers[name] = value
-            cls.cls_providers[name] = value
-        super(DeclarativeContainerMetaClass, cls).__setattr__(name, value)
-
-    def __delattr__(cls, name):
-        """Delete class attribute.
-
-        If value of attribute is provider, it will be deleted from providers
-        dictionary.
-
-        :param name: Attribute's name
-        :type name: str
-
-        :rtype: None
-        """
-        if name in cls.providers and name in cls.cls_providers:
-            del cls.providers[name]
-            del cls.cls_providers[name]
-        super(DeclarativeContainerMetaClass, cls).__delattr__(name)
-
-
-@six.add_metaclass(DeclarativeContainerMetaClass)
-class DeclarativeContainer(object):
-    """Declarative inversion of control container.
-
-    .. code-block:: python
-
-        class Services(DeclarativeContainer):
-            auth = providers.Factory(AuthService)
-            users = providers.Factory(UsersService,
-                                      auth_service=auth)
-    """
-
-    __IS_CONTAINER__ = True
-
-    provider_type = providers.Provider
-    """Type of providers that could be placed in container.
-
-    :type: type
-    """
-
-    instance_type = DynamicContainer
-    """Type of container that is returned on instantiating declarative
-    container.
-
-    :type: type
-    """
-
-    providers = dict()
-    """Read-only dictionary of all providers.
-
-    :type: dict[str, :py:class:`dependency_injector.providers.Provider`]
-    """
-
-    cls_providers = dict()
-    """Read-only dictionary of current container providers.
-
-    :type: dict[str, :py:class:`dependency_injector.providers.Provider`]
-    """
-
-    inherited_providers = dict()
-    """Read-only dictionary of inherited providers.
-
-    :type: dict[str, :py:class:`dependency_injector.providers.Provider`]
-    """
-
-    overridden = tuple()
-    """Tuple of overriding containers.
-
-    :type: tuple[:py:class:`DeclarativeContainer`]
-    """
-
-    def __new__(cls, *args, **kwargs):
-        """Constructor.
-
-        :return: Dynamic container with copy of all providers.
-        :rtype: :py:class:`DynamicContainer`
-        """
-        container = cls.instance_type(*args, **kwargs)
-        container.provider_type = cls.provider_type
-
-        for name, provider in six.iteritems(utils.deepcopy(cls.providers)):
-            setattr(container, name, provider)
-
-        return container
-
-    @classmethod
-    def override(cls, overriding):
-        """Override current container by overriding container.
-
-        :param overriding: Overriding container.
-        :type overriding: :py:class:`DeclarativeContainer`
-
-        :raise: :py:exc:`dependency_injector.errors.Error` if trying to
-                override container by itself or its subclasses
-
-        :rtype: None
-        """
-        if issubclass(cls, overriding):
-            raise errors.Error('Container {0} could not be overridden '
-                               'with itself or its subclasses'.format(cls))
-
-        cls.overridden += (overriding,)
-
-        for name, provider in six.iteritems(overriding.cls_providers):
-            try:
-                getattr(cls, name).override(provider)
-            except AttributeError:
-                pass
-
-    @classmethod
-    def reset_last_overriding(cls):
-        """Reset last overriding provider for each container providers.
-
-        :rtype: None
-        """
-        if not cls.overridden:
-            raise errors.Error('Container {0} is not overridden'.format(cls))
-
-        cls.overridden = cls.overridden[:-1]
-
-        for provider in six.itervalues(cls.providers):
-            provider.reset_last_overriding()
-
-    @classmethod
-    def reset_override(cls):
-        """Reset all overridings for each container providers.
-
-        :rtype: None
-        """
-        cls.overridden = tuple()
-
-        for provider in six.itervalues(cls.providers):
-            provider.reset_override()
-
-
-def override(container):
-    """:py:class:`DeclarativeContainer` overriding decorator.
-
-    :param container: Container that should be overridden by decorated
-                      container.
-    :type container: :py:class:`DeclarativeContainer`
-
-    :return: Declarative container's overriding decorator.
-    :rtype: callable(:py:class:`DeclarativeContainer`)
-    """
-    def _decorator(overriding_container):
-        """Overriding decorator."""
-        container.override(overriding_container)
-        return overriding_container
-    return _decorator
-
-
-def copy(container):
-    """:py:class:`DeclarativeContainer` copying decorator.
-
-    This decorator copy all providers from provided container to decorated one.
-    If one of the decorated container providers matches to source container
-    providers by name, it would be replaced by reference.
-
-    :param container: Container that should be copied by decorated container.
-    :type container: :py:class:`DeclarativeContainer`
-
-    :return: Declarative container's copying decorator.
-    :rtype: callable(:py:class:`DeclarativeContainer`)
-    """
-    def _decorator(copied_container):
-        memo = dict()
-        for name, provider in six.iteritems(copied_container.cls_providers):
-            try:
-                source_provider = getattr(container, name)
-            except AttributeError:
-                pass
-            else:
-                memo[id(source_provider)] = provider
-
-        providers_copy = utils.deepcopy(container.providers, memo)
-        for name, provider in six.iteritems(providers_copy):
-            setattr(copied_container, name, provider)
-
-        return copied_container
-    return _decorator
-
-
-def _check_provider_type(cls, provider):
-    if not isinstance(provider, cls.provider_type):
-        raise errors.Error('{0} can contain only {1} '
-                           'instances'.format(cls, cls.provider_type))

src/dependency_injector/containers/__init__.py

@@ -0,0 +1,26 @@
+"""Dependency injector containers."""
+
+from .declarative import (
+    DeclarativeContainerMetaClass,
+    DeclarativeContainer,
+)
+from .dynamic import (
+    DynamicContainer,
+)
+from .utils import (
+    is_container,
+    override,
+    copy,
+)
+
+
+__all__ = (
+    'DeclarativeContainerMetaClass',
+    'DeclarativeContainer',
+
+    'DynamicContainer',
+
+    'is_container',
+    'override',
+    'copy',
+)

src/dependency_injector/containers/declarative.py

@@ -0,0 +1,191 @@
+"""Dependency injector declarative container."""
+
+import six
+
+from dependency_injector.providers import Provider
+from dependency_injector.errors import Error
+
+from .dynamic import DynamicContainer
+from .utils import (
+    is_container,
+    deepcopy,
+    _check_provider_type,
+)
+
+
+class DeclarativeContainerMetaClass(type):
+    """Declarative inversion of control container meta class."""
+
+    def __new__(mcs, class_name, bases, attributes):
+        """Declarative container class factory."""
+        cls_providers = tuple((name, provider)
+                              for name, provider in six.iteritems(attributes)
+                              if isinstance(provider, Provider))
+
+        inherited_providers = tuple((name, provider)
+                                    for base in bases if is_container(
+                                        base) and base is not DynamicContainer
+                                    for name, provider in six.iteritems(
+                                        base.cls_providers))
+
+        attributes['cls_providers'] = dict(cls_providers)
+        attributes['inherited_providers'] = dict(inherited_providers)
+        attributes['providers'] = dict(cls_providers + inherited_providers)
+
+        cls = type.__new__(mcs, class_name, bases, attributes)
+
+        for provider in six.itervalues(cls.providers):
+            _check_provider_type(cls, provider)
+
+        return cls
+
+    def __setattr__(cls, name, value):
+        """Set class attribute.
+
+        If value of attribute is provider, it will be added into providers
+        dictionary.
+
+        :param name: Attribute's name
+        :type name: str
+
+        :param value: Attribute's value
+        :type value: object
+
+        :rtype: None
+        """
+        if isinstance(value, Provider):
+            _check_provider_type(cls, value)
+            cls.providers[name] = value
+            cls.cls_providers[name] = value
+        super(DeclarativeContainerMetaClass, cls).__setattr__(name, value)
+
+    def __delattr__(cls, name):
+        """Delete class attribute.
+
+        If value of attribute is provider, it will be deleted from providers
+        dictionary.
+
+        :param name: Attribute's name
+        :type name: str
+
+        :rtype: None
+        """
+        if name in cls.providers and name in cls.cls_providers:
+            del cls.providers[name]
+            del cls.cls_providers[name]
+        super(DeclarativeContainerMetaClass, cls).__delattr__(name)
+
+
+@six.add_metaclass(DeclarativeContainerMetaClass)
+class DeclarativeContainer(object):
+    """Declarative inversion of control container.
+
+    .. code-block:: python
+
+        class Services(DeclarativeContainer):
+            auth = providers.Factory(AuthService)
+            users = providers.Factory(UsersService,
+                                      auth_service=auth)
+    """
+
+    __IS_CONTAINER__ = True
+
+    provider_type = Provider
+    """Type of providers that could be placed in container.
+
+    :type: type
+    """
+
+    instance_type = DynamicContainer
+    """Type of container that is returned on instantiating declarative
+    container.
+
+    :type: type
+    """
+
+    providers = dict()
+    """Read-only dictionary of all providers.
+
+    :type: dict[str, :py:class:`dependency_injector.providers.Provider`]
+    """
+
+    cls_providers = dict()
+    """Read-only dictionary of current container providers.
+
+    :type: dict[str, :py:class:`dependency_injector.providers.Provider`]
+    """
+
+    inherited_providers = dict()
+    """Read-only dictionary of inherited providers.
+
+    :type: dict[str, :py:class:`dependency_injector.providers.Provider`]
+    """
+
+    overridden = tuple()
+    """Tuple of overriding containers.
+
+    :type: tuple[:py:class:`DeclarativeContainer`]
+    """
+
+    def __new__(cls, *args, **kwargs):
+        """Constructor.
+
+        :return: Dynamic container with copy of all providers.
+        :rtype: :py:class:`DynamicContainer`
+        """
+        container = cls.instance_type(*args, **kwargs)
+        container.provider_type = cls.provider_type
+
+        for name, provider in six.iteritems(deepcopy(cls.providers)):
+            setattr(container, name, provider)
+
+        return container
+
+    @classmethod
+    def override(cls, overriding):
+        """Override current container by overriding container.
+
+        :param overriding: Overriding container.
+        :type overriding: :py:class:`DeclarativeContainer`
+
+        :raise: :py:exc:`dependency_injector.errors.Error` if trying to
+                override container by itself or its subclasses
+
+        :rtype: None
+        """
+        if issubclass(cls, overriding):
+            raise Error('Container {0} could not be overridden '
+                        'with itself or its subclasses'.format(cls))
+
+        cls.overridden += (overriding,)
+
+        for name, provider in six.iteritems(overriding.cls_providers):
+            try:
+                getattr(cls, name).override(provider)
+            except AttributeError:
+                pass
+
+    @classmethod
+    def reset_last_overriding(cls):
+        """Reset last overriding provider for each container providers.
+
+        :rtype: None
+        """
+        if not cls.overridden:
+            raise Error('Container {0} is not overridden'.format(cls))
+
+        cls.overridden = cls.overridden[:-1]
+
+        for provider in six.itervalues(cls.providers):
+            provider.reset_last_overriding()
+
+    @classmethod
+    def reset_override(cls):
+        """Reset all overridings for each container providers.
+
+        :rtype: None
+        """
+        cls.overridden = tuple()
+
+        for provider in six.itervalues(cls.providers):
+            provider.reset_override()

src/dependency_injector/containers/dynamic.py

@@ -0,0 +1,130 @@
+"""Dependency injector dynamic container."""
+
+import six
+
+from dependency_injector.providers import Provider
+from dependency_injector.errors import Error
+
+from .utils import _check_provider_type
+
+
+class DynamicContainer(object):
+    """Dynamic inversion of control container.
+
+    .. code-block:: python
+
+        services = DynamicContainer()
+        services.auth = providers.Factory(AuthService)
+        services.users = providers.Factory(UsersService,
+                                           auth_service=services.auth)
+
+    .. py:attribute:: providers
+
+        Read-only dictionary of all providers.
+
+        :type: dict[str, :py:class:`dependency_injector.providers.Provider`]
+
+    .. py:attribute:: overridden
+
+        Tuple of overriding containers.
+
+        :type: tuple[:py:class:`DynamicContainer`]
+
+    .. py:attribute:: provider_type
+
+        Type of providers that could be placed in container.
+
+        :type: type
+    """
+
+    __IS_CONTAINER__ = True
+
+    def __init__(self):
+        """Initializer.
+
+        :rtype: None
+        """
+        self.provider_type = Provider
+        self.providers = dict()
+        self.overridden = tuple()
+        super(DynamicContainer, self).__init__()
+
+    def __setattr__(self, name, value):
+        """Set instance attribute.
+
+        If value of attribute is provider, it will be added into providers
+        dictionary.
+
+        :param name: Attribute's name
+        :type name: str
+
+        :param value: Attribute's value
+        :type value: object
+
+        :rtype: None
+        """
+        if isinstance(value, Provider):
+            _check_provider_type(self, value)
+            self.providers[name] = value
+        super(DynamicContainer, self).__setattr__(name, value)
+
+    def __delattr__(self, name):
+        """Delete instance attribute.
+
+        If value of attribute is provider, it will be deleted from providers
+        dictionary.
+
+        :param name: Attribute's name
+        :type name: str
+
+        :rtype: None
+        """
+        if name in self.providers:
+            del self.providers[name]
+        super(DynamicContainer, self).__delattr__(name)
+
+    def override(self, overriding):
+        """Override current container by overriding container.
+
+        :param overriding: Overriding container.
+        :type overriding: :py:class:`DynamicContainer`
+
+        :raise: :py:exc:`dependency_injector.errors.Error` if trying to
+                override container by itself
+
+        :rtype: None
+        """
+        if overriding is self:
+            raise Error('Container {0} could not be overridden '
+                        'with itself'.format(self))
+
+        self.overridden += (overriding,)
+
+        for name, provider in six.iteritems(overriding.providers):
+            try:
+                getattr(self, name).override(provider)
+            except AttributeError:
+                pass
+
+    def reset_last_overriding(self):
+        """Reset last overriding provider for each container providers.
+
+        :rtype: None
+        """
+        if not self.overridden:
+            raise Error('Container {0} is not overridden'.format(self))
+
+        self.overridden = self.overridden[:-1]
+
+        for provider in six.itervalues(self.providers):
+            provider.reset_last_overriding()
+
+    def reset_override(self):
+        """Reset all overridings for each container providers.
+
+        :rtype: None
+        """
+        self.overridden = tuple()
+
+        for provider in six.itervalues(self.providers):
+            provider.reset_override()

src/dependency_injector/containers/utils.py

@@ -0,0 +1,85 @@
+"""Dependency injector container utils."""
+
+import copy as _copy
+import types
+
+import six
+
+from dependency_injector.errors import Error
+
+
+if six.PY2:  # pragma: no cover
+    _copy._deepcopy_dispatch[types.MethodType] = \
+        lambda obj, memo: type(obj)(obj.im_func,
+                                    _copy.deepcopy(obj.im_self, memo),
+                                    obj.im_class)
+
+
+def is_container(instance):
+    """Check if instance is container instance.
+
+    :param instance: Instance to be checked.
+    :type instance: object
+
+    :rtype: bool
+    """
+    return getattr(instance, '__IS_CONTAINER__', False) is True
+
+
+def override(container):
+    """:py:class:`DeclarativeContainer` overriding decorator.
+
+    :param container: Container that should be overridden by decorated
+                      container.
+    :type container: :py:class:`DeclarativeContainer`
+
+    :return: Declarative container's overriding decorator.
+    :rtype: callable(:py:class:`DeclarativeContainer`)
+    """
+    def _decorator(overriding_container):
+        """Overriding decorator."""
+        container.override(overriding_container)
+        return overriding_container
+    return _decorator
+
+
+def copy(container):
+    """:py:class:`DeclarativeContainer` copying decorator.
+
+    This decorator copy all providers from provided container to decorated one.
+    If one of the decorated container providers matches to source container
+    providers by name, it would be replaced by reference.
+
+    :param container: Container that should be copied by decorated container.
+    :type container: :py:class:`DeclarativeContainer`
+
+    :return: Declarative container's copying decorator.
+    :rtype: callable(:py:class:`DeclarativeContainer`)
+    """
+    def _decorator(copied_container):
+        memo = dict()
+        for name, provider in six.iteritems(copied_container.cls_providers):
+            try:
+                source_provider = getattr(container, name)
+            except AttributeError:
+                pass
+            else:
+                memo[id(source_provider)] = provider
+
+        providers_copy = deepcopy(container.providers, memo)
+        for name, provider in six.iteritems(providers_copy):
+            setattr(copied_container, name, provider)
+
+        return copied_container
+    return _decorator
+
+
+def deepcopy(instance, memo=None):
+    """Make full copy of instance."""
+    return _copy.deepcopy(instance, memo)
+
+
+def _check_provider_type(cls, provider):
+    if not isinstance(provider, cls.provider_type):
+        raise Error('{0} can contain only {1} '
+                    'instances'.format(cls, cls.provider_type))

src/dependency_injector/errors.pxd

@@ -1,8 +0,0 @@
-"""Dependency injector errors.
-
-Powered by Cython.
-"""
-
-
-cdef class Error(Exception):
-    pass

src/dependency_injector/errors.py

@@ -1,10 +1,7 @@
-"""Dependency injector errors.
+"""Dependency injector errors."""
-
-Powered by Cython.
-"""
 
 
-cdef class Error(Exception):
+class Error(Exception):
     """Base error.
 
     All dependency injector errors extend this error class.

src/dependency_injector/providers/__init__.py

@@ -1,6 +1,6 @@
-"""Dependency injector providers package."""
+"""Dependency injector providers."""
 
-from dependency_injector.providers.base import (
+from .base import (
     Provider,
     Delegate,
     Object,
@@ -8,17 +8,22 @@ from dependency_injector.providers.base import (
     OverridingContext,
     override,
 )
-from dependency_injector.providers.callable import (
+from .callable import (
     Callable,
     DelegatedCallable,
 )
-from dependency_injector.providers.creational import (
+from .creational import (
     Factory,
     DelegatedFactory,
     Singleton,
     DelegatedSingleton,
     ThreadLocalSingleton,
-    DelegatedThreadLocalSingleton
+    DelegatedThreadLocalSingleton,
+)
+from .injections import (
+    Injection,
+    PositionalInjection,
+    NamedInjection,
 )
 
 
@@ -42,4 +47,8 @@ __all__ = (
 
     'ThreadLocalSingleton',
     'DelegatedThreadLocalSingleton',
+
+    'Injection',
+    'PositionalInjection',
+    'NamedInjection',
 )

src/dependency_injector/providers/injections.pyx

@@ -5,7 +5,7 @@ Powered by Cython.
 
 cimport cython
 
-from .utils cimport (
+from dependency_injector.utils import (
     is_provider,
     is_delegated,
 )

src/dependency_injector/utils.pxd

@@ -1,16 +0,0 @@
-"""Dependency injector utils.
-
-Powered by Cython.
-"""
-
-cpdef bint is_provider(object instance)
-
-cpdef object ensure_is_provider(object instance)
-
-cpdef bint is_delegated(object instance)
-
-cpdef bint is_container(object instance)
-
-cpdef str represent_provider(object provider, object provides)
-
-cpdef object deepcopy(object instance, dict memo=*)

src/dependency_injector/utils.py

@@ -1,36 +1,19 @@
-"""Dependency injector utils.
+"""Dependency injector utils."""
 
-Powered by Cython.
+import six
-"""
 
-cimport cpython.version
-
-from dependency_injector cimport errors
-
-import copy as _copy
-import types
 import threading
 
+from .errors import Error
 
 GLOBAL_LOCK = threading.RLock()
-"""Dependency injector global reentrant lock.
+"""Global reentrant lock.
 
 :type: :py:class:`threading.RLock`
 """
 
-if cpython.version.PY_MAJOR_VERSION < 3:  # pragma: no cover
-    CLASS_TYPES = (type, types.ClassType)
 
-    _copy._deepcopy_dispatch[types.MethodType] = \
+def is_provider(instance):
-        lambda obj, memo: type(obj)(obj.im_func,
-                                    _copy.deepcopy(obj.im_self, memo),
-                                    obj.im_class)
-else:  # pragma: no cover
-    CLASS_TYPES = (type,)
-
-
-
-cpdef bint is_provider(object instance):
     """Check if instance is provider instance.
 
     :param instance: Instance to be checked.
@@ -38,11 +21,11 @@ cpdef bint is_provider(object instance):
 
     :rtype: bool
     """
-    return (not isinstance(instance, CLASS_TYPES) and
+    return (not isinstance(instance, six.class_types) and
             getattr(instance, '__IS_PROVIDER__', False) is True)
 
 
-cpdef object ensure_is_provider(object instance):
+def ensure_is_provider(instance):
     """Check if instance is provider instance and return it.
 
     :param instance: Instance to be checked.
@@ -54,12 +37,12 @@ cpdef object ensure_is_provider(object instance):
     :rtype: :py:class:`dependency_injector.providers.Provider`
     """
     if not is_provider(instance):
-        raise errors.Error('Expected provider instance, '
+        raise Error('Expected provider instance, '
-                           'got {0}'.format(str(instance)))
+                    'got {0}'.format(str(instance)))
     return instance
 
 
-cpdef bint is_delegated(object instance):
+def is_delegated(instance):
     """Check if instance is delegated provider.
 
     :param instance: Instance to be checked.
@@ -67,22 +50,11 @@ cpdef bint is_delegated(object instance):
 
     :rtype: bool
     """
-    return (not isinstance(instance, CLASS_TYPES) and
+    return (not isinstance(instance, six.class_types) and
             getattr(instance, '__IS_DELEGATED__', False) is True)
 
 
-cpdef bint is_container(object instance):
+def represent_provider(provider, provides):
-    """Check if instance is container instance.
-
-    :param instance: Instance to be checked.
-    :type instance: object
-
-    :rtype: bool
-    """
-    return getattr(instance, '__IS_CONTAINER__', False) is True
-
-
-cpdef str represent_provider(object provider, object provides):
     """Return string representation of provider.
 
     :param provider: Provider object
@@ -99,9 +71,3 @@ cpdef str represent_provider(object provider, object provides):
                            provider.__class__.__name__)),
         provides=repr(provides) if provides is not None else '',
         address=hex(id(provider)))
-
-
-cpdef object deepcopy(object instance, dict memo=None):
-    """Make full copy of instance."""
-    return _copy.deepcopy(instance, memo)
-

tests/unit/containers/__init__.py

@@ -0,0 +1 @@
+"""Dependency injector container unit tests."""

tests/unit/containers/test_declarative.py

@@ -1,4 +1,4 @@
-"""Dependency injector container unit tests."""
+"""Dependency injector declarative container unit tests."""
 
 import unittest2 as unittest
 
@@ -10,27 +10,18 @@ from dependency_injector import (
 
 
 class ContainerA(containers.DeclarativeContainer):
-    """Declarative IoC container A."""
-
     p11 = providers.Provider()
     p12 = providers.Provider()
 
 
 class ContainerB(ContainerA):
-    """Declarative IoC container B.
-
-    Extends container A.
-    """
-
     p21 = providers.Provider()
     p22 = providers.Provider()
 
 
 class DeclarativeContainerTests(unittest.TestCase):
-    """Declarative container tests."""
 
     def test_providers_attribute(self):
-        """Test providers attribute."""
         self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
                                                     p12=ContainerA.p12))
         self.assertEqual(ContainerB.providers, dict(p11=ContainerA.p11,
@@ -39,21 +30,18 @@ class DeclarativeContainerTests(unittest.TestCase):
                                                     p22=ContainerB.p22))
 
     def test_cls_providers_attribute(self):
-        """Test cls_providers attribute."""
         self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
                                                         p12=ContainerA.p12))
         self.assertEqual(ContainerB.cls_providers, dict(p21=ContainerB.p21,
                                                         p22=ContainerB.p22))
 
     def test_inherited_providers_attribute(self):
-        """Test inherited_providers attribute."""
         self.assertEqual(ContainerA.inherited_providers, dict())
         self.assertEqual(ContainerB.inherited_providers,
                          dict(p11=ContainerA.p11,
                               p12=ContainerA.p12))
 
     def test_set_get_del_providers(self):
-        """Test set/get/del provider attributes."""
         a_p13 = providers.Provider()
         b_p23 = providers.Provider()
 
@@ -92,7 +80,6 @@ class DeclarativeContainerTests(unittest.TestCase):
                                                         p22=ContainerB.p22))
 
     def test_declare_with_valid_provider_type(self):
-        """Test declaration of container with valid provider type."""
         class _Container(containers.DeclarativeContainer):
             provider_type = providers.Object
             px = providers.Object(object())
@@ -100,14 +87,12 @@ class DeclarativeContainerTests(unittest.TestCase):
         self.assertIsInstance(_Container.px, providers.Object)
 
     def test_declare_with_invalid_provider_type(self):
-        """Test declaration of container with invalid provider type."""
         with self.assertRaises(errors.Error):
             class _Container(containers.DeclarativeContainer):
                 provider_type = providers.Object
                 px = providers.Provider()
 
     def test_seth_valid_provider_type(self):
-        """Test setting of valid provider."""
         class _Container(containers.DeclarativeContainer):
             provider_type = providers.Object
 
@@ -116,7 +101,6 @@ class DeclarativeContainerTests(unittest.TestCase):
         self.assertIsInstance(_Container.px, providers.Object)
 
     def test_set_invalid_provider_type(self):
-        """Test setting of invalid provider."""
         class _Container(containers.DeclarativeContainer):
             provider_type = providers.Object
 
@@ -124,7 +108,6 @@ class DeclarativeContainerTests(unittest.TestCase):
             _Container.px = providers.Provider()
 
     def test_override(self):
-        """Test override."""
         class _Container(containers.DeclarativeContainer):
             p11 = providers.Provider()
 
@@ -146,17 +129,14 @@ class DeclarativeContainerTests(unittest.TestCase):
                           _OverridingContainer2.p11))
 
     def test_override_with_itself(self):
-        """Test override with itself."""
         with self.assertRaises(errors.Error):
             ContainerA.override(ContainerA)
 
     def test_override_with_parent(self):
-        """Test override with parent."""
         with self.assertRaises(errors.Error):
             ContainerB.override(ContainerA)
 
     def test_override_decorator(self):
-        """Test override decorator."""
         class _Container(containers.DeclarativeContainer):
             p11 = providers.Provider()
 
@@ -177,7 +157,6 @@ class DeclarativeContainerTests(unittest.TestCase):
                           _OverridingContainer2.p11))
 
     def test_reset_last_overridding(self):
-        """Test reset of last overriding."""
         class _Container(containers.DeclarativeContainer):
             p11 = providers.Provider()
 
@@ -198,12 +177,10 @@ class DeclarativeContainerTests(unittest.TestCase):
                          (_OverridingContainer1.p11,))
 
     def test_reset_last_overridding_when_not_overridden(self):
-        """Test reset of last overriding."""
         with self.assertRaises(errors.Error):
             ContainerA.reset_last_overriding()
 
     def test_reset_override(self):
-        """Test reset all overridings."""
         class _Container(containers.DeclarativeContainer):
             p11 = providers.Provider()
 
@@ -222,7 +199,6 @@ class DeclarativeContainerTests(unittest.TestCase):
         self.assertEqual(_Container.p11.overridden, tuple())
 
     def test_copy(self):
-        """Test copy decorator."""
         @containers.copy(ContainerA)
         class _Container1(ContainerA):
             pass
@@ -241,7 +217,6 @@ class DeclarativeContainerTests(unittest.TestCase):
         self.assertIsNot(_Container1.p12, _Container2.p12)
 
     def test_copy_with_replacing(self):
-        """Test copy decorator with providers replacement."""
         class _Container(containers.DeclarativeContainer):
             p11 = providers.Object(0)
             p12 = providers.Factory(dict, p11=p11)
@@ -275,163 +250,3 @@ class DeclarativeContainerTests(unittest.TestCase):
 
         self.assertEqual(_Container1.p13(), 11)
         self.assertEqual(_Container2.p13(), 22)
-
-
-class DeclarativeContainerInstanceTests(unittest.TestCase):
-    """Declarative container instance tests."""
-
-    def test_providers_attribute(self):
-        """Test providers attribute."""
-        container_a1 = ContainerA()
-        container_a2 = ContainerA()
-
-        self.assertIsNot(container_a1.p11, container_a2.p11)
-        self.assertIsNot(container_a1.p12, container_a2.p12)
-        self.assertNotEqual(container_a1.providers, container_a2.providers)
-
-    def test_set_get_del_providers(self):
-        """Test set/get/del provider attributes."""
-        p13 = providers.Provider()
-
-        container_a1 = ContainerA()
-        container_a2 = ContainerA()
-
-        container_a1.p13 = p13
-        container_a2.p13 = p13
-
-        self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
-                                                    p12=ContainerA.p12))
-        self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
-                                                        p12=ContainerA.p12))
-
-        self.assertEqual(container_a1.providers, dict(p11=container_a1.p11,
-                                                      p12=container_a1.p12,
-                                                      p13=p13))
-        self.assertEqual(container_a2.providers, dict(p11=container_a2.p11,
-                                                      p12=container_a2.p12,
-                                                      p13=p13))
-
-        del container_a1.p13
-        self.assertEqual(container_a1.providers, dict(p11=container_a1.p11,
-                                                      p12=container_a1.p12))
-
-        del container_a2.p13
-        self.assertEqual(container_a2.providers, dict(p11=container_a2.p11,
-                                                      p12=container_a2.p12))
-
-        del container_a1.p11
-        del container_a1.p12
-        self.assertEqual(container_a1.providers, dict())
-        self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
-                                                    p12=ContainerA.p12))
-
-        del container_a2.p11
-        del container_a2.p12
-        self.assertEqual(container_a2.providers, dict())
-        self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
-                                                    p12=ContainerA.p12))
-
-    def test_set_invalid_provider_type(self):
-        """Test setting of invalid provider."""
-        container_a = ContainerA()
-        container_a.provider_type = providers.Object
-
-        with self.assertRaises(errors.Error):
-            container_a.px = providers.Provider()
-
-        self.assertIs(ContainerA.provider_type,
-                      containers.DeclarativeContainer.provider_type)
-
-    def test_override(self):
-        """Test override."""
-        class _Container(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-
-        class _OverridingContainer1(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-
-        class _OverridingContainer2(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-            p12 = providers.Provider()
-
-        container = _Container()
-        overriding_container1 = _OverridingContainer1()
-        overriding_container2 = _OverridingContainer2()
-
-        container.override(overriding_container1)
-        container.override(overriding_container2)
-
-        self.assertEqual(container.overridden,
-                         (overriding_container1,
-                          overriding_container2))
-        self.assertEqual(container.p11.overridden,
-                         (overriding_container1.p11,
-                          overriding_container2.p11))
-
-        self.assertEqual(_Container.overridden, tuple())
-        self.assertEqual(_Container.p11.overridden, tuple())
-
-    def test_override_with_itself(self):
-        """Test override container with itself."""
-        container = ContainerA()
-        with self.assertRaises(errors.Error):
-            container.override(container)
-
-    def test_reset_last_overridding(self):
-        """Test reset of last overriding."""
-        class _Container(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-
-        class _OverridingContainer1(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-
-        class _OverridingContainer2(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-            p12 = providers.Provider()
-
-        container = _Container()
-        overriding_container1 = _OverridingContainer1()
-        overriding_container2 = _OverridingContainer2()
-
-        container.override(overriding_container1)
-        container.override(overriding_container2)
-        container.reset_last_overriding()
-
-        self.assertEqual(container.overridden,
-                         (overriding_container1,))
-        self.assertEqual(container.p11.overridden,
-                         (overriding_container1.p11,))
-
-    def test_reset_last_overridding_when_not_overridden(self):
-        """Test reset of last overriding."""
-        container = ContainerA()
-
-        with self.assertRaises(errors.Error):
-            container.reset_last_overriding()
-
-    def test_reset_override(self):
-        """Test reset all overridings."""
-        class _Container(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-
-        class _OverridingContainer1(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-
-        class _OverridingContainer2(containers.DeclarativeContainer):
-            p11 = providers.Provider()
-            p12 = providers.Provider()
-
-        container = _Container()
-        overriding_container1 = _OverridingContainer1()
-        overriding_container2 = _OverridingContainer2()
-
-        container.override(overriding_container1)
-        container.override(overriding_container2)
-        container.reset_override()
-
-        self.assertEqual(container.overridden, tuple())
-        self.assertEqual(container.p11.overridden, tuple())
-
-
-if __name__ == '__main__':
-    unittest.main()

tests/unit/containers/test_dynamic.py

@@ -0,0 +1,165 @@
+"""Dependency injector dynamic container unit tests."""
+
+import unittest2 as unittest
+
+from dependency_injector import (
+    containers,
+    providers,
+    errors,
+)
+
+
+class ContainerA(containers.DeclarativeContainer):
+    p11 = providers.Provider()
+    p12 = providers.Provider()
+
+
+class DeclarativeContainerInstanceTests(unittest.TestCase):
+
+    def test_providers_attribute(self):
+        container_a1 = ContainerA()
+        container_a2 = ContainerA()
+
+        self.assertIsNot(container_a1.p11, container_a2.p11)
+        self.assertIsNot(container_a1.p12, container_a2.p12)
+        self.assertNotEqual(container_a1.providers, container_a2.providers)
+
+    def test_set_get_del_providers(self):
+        p13 = providers.Provider()
+
+        container_a1 = ContainerA()
+        container_a2 = ContainerA()
+
+        container_a1.p13 = p13
+        container_a2.p13 = p13
+
+        self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
+                                                    p12=ContainerA.p12))
+        self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
+                                                        p12=ContainerA.p12))
+
+        self.assertEqual(container_a1.providers, dict(p11=container_a1.p11,
+                                                      p12=container_a1.p12,
+                                                      p13=p13))
+        self.assertEqual(container_a2.providers, dict(p11=container_a2.p11,
+                                                      p12=container_a2.p12,
+                                                      p13=p13))
+
+        del container_a1.p13
+        self.assertEqual(container_a1.providers, dict(p11=container_a1.p11,
+                                                      p12=container_a1.p12))
+
+        del container_a2.p13
+        self.assertEqual(container_a2.providers, dict(p11=container_a2.p11,
+                                                      p12=container_a2.p12))
+
+        del container_a1.p11
+        del container_a1.p12
+        self.assertEqual(container_a1.providers, dict())
+        self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
+                                                    p12=ContainerA.p12))
+
+        del container_a2.p11
+        del container_a2.p12
+        self.assertEqual(container_a2.providers, dict())
+        self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
+                                                    p12=ContainerA.p12))
+
+    def test_set_invalid_provider_type(self):
+        container_a = ContainerA()
+        container_a.provider_type = providers.Object
+
+        with self.assertRaises(errors.Error):
+            container_a.px = providers.Provider()
+
+        self.assertIs(ContainerA.provider_type,
+                      containers.DeclarativeContainer.provider_type)
+
+    def test_override(self):
+        class _Container(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+
+        class _OverridingContainer1(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+
+        class _OverridingContainer2(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+            p12 = providers.Provider()
+
+        container = _Container()
+        overriding_container1 = _OverridingContainer1()
+        overriding_container2 = _OverridingContainer2()
+
+        container.override(overriding_container1)
+        container.override(overriding_container2)
+
+        self.assertEqual(container.overridden,
+                         (overriding_container1,
+                          overriding_container2))
+        self.assertEqual(container.p11.overridden,
+                         (overriding_container1.p11,
+                          overriding_container2.p11))
+
+        self.assertEqual(_Container.overridden, tuple())
+        self.assertEqual(_Container.p11.overridden, tuple())
+
+    def test_override_with_itself(self):
+        container = ContainerA()
+        with self.assertRaises(errors.Error):
+            container.override(container)
+
+    def test_reset_last_overridding(self):
+        class _Container(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+
+        class _OverridingContainer1(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+
+        class _OverridingContainer2(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+            p12 = providers.Provider()
+
+        container = _Container()
+        overriding_container1 = _OverridingContainer1()
+        overriding_container2 = _OverridingContainer2()
+
+        container.override(overriding_container1)
+        container.override(overriding_container2)
+        container.reset_last_overriding()
+
+        self.assertEqual(container.overridden,
+                         (overriding_container1,))
+        self.assertEqual(container.p11.overridden,
+                         (overriding_container1.p11,))
+
+    def test_reset_last_overridding_when_not_overridden(self):
+        container = ContainerA()
+
+        with self.assertRaises(errors.Error):
+            container.reset_last_overriding()
+
+    def test_reset_override(self):
+        class _Container(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+
+        class _OverridingContainer1(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+
+        class _OverridingContainer2(containers.DeclarativeContainer):
+            p11 = providers.Provider()
+            p12 = providers.Provider()
+
+        container = _Container()
+        overriding_container1 = _OverridingContainer1()
+        overriding_container2 = _OverridingContainer2()
+
+        container.override(overriding_container1)
+        container.override(overriding_container2)
+        container.reset_override()
+
+        self.assertEqual(container.overridden, tuple())
+        self.assertEqual(container.p11.overridden, tuple())
+
+
+if __name__ == '__main__':
+    unittest.main()

tests/unit/providers/test_injections.py

@@ -2,22 +2,21 @@
 
 import unittest2 as unittest
 
-from dependency_injector import injections
 from dependency_injector import providers
 
 
 class PositionalInjectionTests(unittest.TestCase):
 
     def test_isinstance(self):
-        injection = injections.PositionalInjection(1)
+        injection = providers.PositionalInjection(1)
-        self.assertIsInstance(injection, injections.Injection)
+        self.assertIsInstance(injection, providers.Injection)
 
     def test_get_value_with_not_provider(self):
-        injection = injections.PositionalInjection(123)
+        injection = providers.PositionalInjection(123)
         self.assertEquals(injection.get_value(), 123)
 
     def test_get_value_with_factory(self):
-        injection = injections.PositionalInjection(providers.Factory(object))
+        injection = providers.PositionalInjection(providers.Factory(object))
 
         obj1 = injection.get_value()
         obj2 = injection.get_value()
@@ -30,20 +29,20 @@ class PositionalInjectionTests(unittest.TestCase):
 class NamedInjectionTests(unittest.TestCase):
 
     def test_isinstance(self):
-        injection = injections.NamedInjection('name', 1)
+        injection = providers.NamedInjection('name', 1)
-        self.assertIsInstance(injection, injections.Injection)
+        self.assertIsInstance(injection, providers.Injection)
 
     def test_get_name(self):
-        injection = injections.NamedInjection('name', 123)
+        injection = providers.NamedInjection('name', 123)
         self.assertEquals(injection.get_name(), 'name')
 
     def test_get_value_with_not_provider(self):
-        injection = injections.NamedInjection('name', 123)
+        injection = providers.NamedInjection('name', 123)
         self.assertEquals(injection.get_value(), 123)
 
     def test_get_value_with_factory(self):
-        injection = injections.NamedInjection('name',
+        injection = providers.NamedInjection('name',
-                                              providers.Factory(object))
+                                             providers.Factory(object))
 
         obj1 = injection.get_value()
         obj2 = injection.get_value()