MAINT: Use a simpler invocation of cython

Run it using python -m cython, which works fine even on 0.19

1 files changed, 2 insertions, 4 deletions

diff --git a/tools/cythonize.py b/tools/cythonize.py
index f0f1b5516..37c28fad0 100755
--- a/tools/cythonize.py
+++ b/tools/cythonize.py
@@ -73,10 +73,8 @@ def process_pyx(fromfile, tofile):
         except OSError:
             # There are ways of installing Cython that don't result in a cython
             # executable on the path, see scipy/scipy#2397.
-            r = subprocess.call([sys.executable, '-c',
-                                 'import sys; from Cython.Compiler.Main import '
-                                 'setuptools_main as main; sys.exit(main())'] + flags +
-                                 ["-o", tofile, fromfile])
+            r = subprocess.call([sys.executable, '-m', 'cython'] + flags +
+                                ["-o", tofile, fromfile])
             if r != 0:
                 raise Exception('Cython failed')
     except OSError: