1 files changed, 15 insertions, 16 deletions
diff --git a/docs/examples/userguide/buffer/matrix.pyx b/docs/examples/userguide/buffer/matrix.pyx
index abdb2d3c7..f2547f6c3 100644
--- a/docs/examples/userguide/buffer/matrix.pyx
+++ b/docs/examples/userguide/buffer/matrix.pyx
@@ -1,16 +1,15 @@
-# distutils: language = c++
-
-# matrix.pyx
-
-from libcpp.vector cimport vector
-
-cdef class Matrix:
-    cdef unsigned ncols
-    cdef vector[float] v
-
-    def __cinit__(self, unsigned ncols):
-        self.ncols = ncols
-
-    def add_row(self):
-        """Adds a row, initially zero-filled."""
-        self.v.resize(self.v.size() + self.ncols)
+# distutils: language = c++
+
+from libcpp.vector cimport vector
+
+
+cdef class Matrix:
+    cdef unsigned ncols
+    cdef vector[float] v
+
+    def __cinit__(self, unsigned ncols):
+        self.ncols = ncols
+
+    def add_row(self):
+        """Adds a row, initially zero-filled."""
+        self.v.resize(self.v.size() + self.ncols)