Set Cython language_level=2

Author: rmk135

Makefile

@@ -2,7 +2,7 @@ VERSION := $(shell python setup.py --version)
 
 CYTHON_SRC := $(shell find src/dependency_injector -name '*.pyx')
 
-CYTHON_DIRECTIVES =
+CYTHON_DIRECTIVES = -Xlanguage_level=2
 
 ifdef DEPENDENCY_INJECTOR_DEBUG_MODE
 CYTHON_DIRECTIVES += -Xprofile=True

docs/main/changelog.rst

@@ -7,6 +7,10 @@ that were made in every particular version.
 From version 0.7.6 *Dependency Injector* framework strictly 
 follows `Semantic versioning`_
 
+3.14.2
+------
+- Set Cython ``language_level=2``.
+
 3.14.1
 ------
 - Fix bug `#208 <https://github.com/ets-labs/python-dependency-injector/issues/208>`_:

src/dependency_injector/__init__.py

@@ -1,6 +1,6 @@
 """Dependency injector top-level package."""
 
-__version__ = '3.14.1'
+__version__ = '3.14.2'
 """Version number that follows semantic versioning.
 
 :type: str