fix issue that sometimes there is conflict between distutils and setuptools (#208)

* fix issue that cython and setuptools conflict

* follow the accepted temp workaround

* update comment, it should be conflict between setuptools and distutils

.github/linters/tox.ini

@@ -18,7 +18,8 @@ exclude =
     .vscode,
     .github,
     scripts,
-    tests
+    tests,
+    setup.py
 
 max-line-length = 120
 
@@ -35,4 +36,4 @@ use_parentheses = True
 multi_line_output = 6
 known_first_party = maro
 filter_files = True
-skip_glob = maro/__init__.py, tests/*, examples/*
+skip_glob = maro/__init__.py, tests/*, examples/*, setup.py

setup.py

@@ -4,7 +4,12 @@
 import io
 import os
 
-from setuptools import Extension, find_packages, setup
+# NOTE: DO NOT change the import order, as sometimes there is a conflict between setuptools and distutils,
+# it will cause following error:
+# error: each element of 'ext_modules' option must be an Extension instance or 2-tuple
+from setuptools import find_packages
+from distutils.core import setup
+from distutils.extension import Extension
 
 from maro import __version__