Pass python_requires argument to setuptools
Helps pip decide what version of the library to install.
https://packaging.python.org/tutorials/distributing-packages/#python-requires
> If your project only runs on certain Python versions, setting the
> python_requires argument to the appropriate PEP 440 version specifier
> string will prevent pip from installing the project on other Python
> versions.
https://setuptools.readthedocs.io/en/latest/setuptools.html#new-and-changed-setup-keywords
> python_requires
>
> A string corresponding to a version specifier (as defined in PEP 440)
> for the Python version, used to specify the Requires-Python defined in
> PEP 345.
diff --git a/setup.py b/setup.py
index 36496d5..3641168 100644
--- a/setup.py
+++ b/setup.py
@@ -60,4 +60,5 @@
'Topic :: Software Development :: Libraries :: Python Modules',
'Topic :: Software Development :: Quality Assurance',
],
+ python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
)
