Remove loop, made unnecessary by removal of support for Pyrex

1 files changed, 7 insertions, 8 deletions

diff --git a/setuptools/extension.py b/setuptools/extension.py
index a7c40f86..35eb7c7c 100644
--- a/setuptools/extension.py
+++ b/setuptools/extension.py
@@ -16,14 +16,13 @@ def _have_cython():
     """
     Return True if Cython can be imported.
     """
-    cython_impls = 'Cython.Distutils.build_ext',
-    for cython_impl in cython_impls:
-        try:
-            # from (cython_impl) import build_ext
-            __import__(cython_impl, fromlist=['build_ext']).build_ext
-            return True
-        except Exception:
-            pass
+    cython_impl = 'Cython.Distutils.build_ext',
+    try:
+        # from (cython_impl) import build_ext
+        __import__(cython_impl, fromlist=['build_ext']).build_ext
+        return True
+    except Exception:
+        pass
     return False
 
 # for compatibility