MNT Removing Cython compilation warnings in WeightVector template (#20739)

jjerphan · lorentzenchr · thomasjpfan · web-flow · commit 0b570053ca23 · 2021-08-13T09:25:37.000-04:00
Co-authored-by: Christian Lorentzen &lt;lorentzen.ch@gmail.com&gt;
Co-authored-by: Thomas J. Fan &lt;thomasjpfan@gmail.com&gt;
diff --git a/sklearn/utils/_weight_vector.pxd.tp b/sklearn/utils/_weight_vector.pxd.tp
@@ -18,14 +18,11 @@ dtypes = [('64', 'double'),
 
 }}
 
+# WARNING: Do not edit this .pyx file directly, it is generated from its .pyx.tp
 cimport numpy as np
 
 {{for name_suffix, c_type in dtypes}}
 
-cdef extern from "math.h":
-    cdef extern {{c_type}} sqrt({{c_type}} x)
-
-
 cdef class WeightVector{{name_suffix}}(object):
     cdef readonly {{c_type}}[::1] w
     cdef readonly {{c_type}}[::1] aw
diff --git a/sklearn/utils/_weight_vector.pyx.tp b/sklearn/utils/_weight_vector.pyx.tp
@@ -18,16 +18,24 @@ dtypes = [('64', 'double', 1e-9),
 
 }}
 
+# cython: language_level=3
 # cython: cdivision=True
 # cython: boundscheck=False
 # cython: wraparound=False
+# cython: profile=False
+# cython: linetrace=False
+# cython: initializedcheck=False
+# cython: binding=False
+# distutils: define_macros=CYTHON_TRACE_NOGIL=0
 #
 # Author: Peter Prettenhofer <peter.prettenhofer@gmail.com>
 #         Lars Buitinck
 #         Danny Sullivan <dsullivan7@hotmail.com>
 #
 # License: BSD 3 clause
 
+# WARNING: Do not edit this .pyx file directly, it is generated from its .pyx.tp
+
 cimport cython
 from libc.limits cimport INT_MAX
 from libc.math cimport sqrt
