From c9ea79f0f94a1d34dc6f8dc36f9f7471f6d840b9 Mon Sep 17 00:00:00 2001
From: Jon Dufresne <jon.dufresne@gmail.com>
Date: Thu, 12 Apr 2018 04:31:53 -0700
Subject: Pass python_requires argument to setuptools (#847)

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.
---
 setup.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/setup.py b/setup.py
index 21d7f8ab..d0e3ff3a 100644
--- a/setup.py
+++ b/setup.py
@@ -132,6 +132,7 @@ setup(
     zip_safe=False,
     license='BSD',
     cmdclass={'test': pytest},
+    python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
     install_requires=reqs('default.txt'),
     tests_require=reqs('test.txt'),
     extras_require={
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