describe exception types in docstrings (#10)

Author: escherba

pip-freeze.txt

@@ -10,7 +10,7 @@ ipdb==0.13.9
 ipython==7.30.1
 jedi==0.18.1
 matplotlib-inline==0.1.3
--e git+https://github.com/escherba/python-metrohash@73e7ff6160a666ec7075a7f02d1a14031a1385c3#egg=metrohash
+-e git+https://github.com/escherba/python-metrohash@c6d18bcf22fa6e4a0bc8a98fb8f94f2c60d4f12d#egg=metrohash
 numpy==1.21.5
 packaging==21.3
 parso==0.8.3

setup.py

@@ -1,15 +1,17 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+import warnings
 from os.path import join, dirname
 from setuptools import setup
 from setuptools.extension import Extension
 from setuptools.dist import Distribution
 
 try:
     from cpuinfo import get_cpu_info
-    have_sse42 = 'sse4.2' in get_cpu_info()['flags']
-except Exception:
-    have_sse42 = False
+    cpu_info = get_cpu_info()
+    HAVE_SSE42 = 'sse4_2' in cpu_info['flags']
+except Exception as exc:
+    HAVE_SSE42 = False
 
 try:
     from Cython.Distutils import build_ext
@@ -33,8 +35,11 @@ def is_pure(self):
 -Wno-unused-function
 """.split()
 
-if have_sse42:
+if HAVE_SSE42:
+    warnings.warn("Compiling with SSE4.2 enabled")
     CXXFLAGS.append('-msse4.2')
+else:
+    warnings.warn("compiling without SSE4.2 support")
 
 
 INCLUDE_DIRS = ['include']
@@ -77,7 +82,7 @@ def is_pure(self):
         )
 
 
-VERSION = '0.1.0.post4'
+VERSION = '0.1.0.post5'
 URL = "https://github.com/escherba/python-metrohash"