[Satosa-dev] type hints and Python 3.4 support

Hello all, Looking into this, I see that * python 3.4 is EOL since March 18, 2019 The oldest python version we should support is python 3.5. Python 3.5 is the default python on many systems, including Debian, which a platform we want to support. * function annotations are supported since python 3.0 This is the basis for type hints in function definitions. * the typing module is supported since python 3.5 The typing module introduced official support for all types supported in python, as well as things like the "Any" type. * type hinting was introduced officially in python 3.5 Using function annotations and the typing module, one can now have type hinting in function definitions. * variable annotations were introduced in python 3.6 Same story as with function annotations; by allowing variable annotations and having the typing module, we can now have type hints for variable definitions. References: https://www.python.org/dev/peps/pep-0429/ -- PEP 429 -- Python 3.4 Release Schedule https://www.python.org/dev/peps/pep-3107/ -- PEP 3107 -- Function Annotations https://devguide.python.org/#status-of-python-branches -- Status of Python branches https://docs.python.org/3/library/typing.html -- typing -- Support for type hints https://www.python.org/dev/peps/pep-0483/ -- PEP 483 -- The Theory of Type Hints https://www.python.org/dev/peps/pep-0484/ -- PEP 484 -- Type Hints https://www.python.org/dev/peps/pep-0526/ -- PEP 526 -- Syntax for Variable Annotations + + + + + This means we can safely drop support for python 3.4 and have python 3.5 as the minimum version we support from now on. Python 3.5 supports type hints in function definitions only; it does not support type hints for variables. This is supported in python 3.5 -- type hints as part of the function definition ``` def double(x: int): # function annotation with a type value = 2 * x return value ``` This is supported only in python 3.6 -- type hints as part of variable definitions ``` def double(x: int): value: int = 2 * x # variable annotation with a type return value ``` -- Ivan c00kiemon5ter Kanakarakis >:3 _______________________________________________ Satosa-dev mailing list Satosa-dev at lists.sunet.se https://lists.sunet.se/listinfo/satosa-dev