COSMIT: two empty lines between functions

Author: GaelVaroquaux

sklearn/neighbors/dist_metrics.pxd

@@ -23,6 +23,7 @@ cdef inline DTYPE_t euclidean_dist(DTYPE_t* x1, DTYPE_t* x2,
         d += tmp * tmp
     return sqrt(d)
 
+
 cdef inline DTYPE_t euclidean_rdist(DTYPE_t* x1, DTYPE_t* x2,
                                     ITYPE_t size) except -1:
     cdef DTYPE_t tmp, d=0
@@ -31,15 +32,19 @@ cdef inline DTYPE_t euclidean_rdist(DTYPE_t* x1, DTYPE_t* x2,
         d += tmp * tmp
     return d
 
+
 cdef inline DTYPE_t euclidean_dist_to_rdist(DTYPE_t dist) except -1:
     return dist * dist
 
+
 cdef inline DTYPE_t euclidean_rdist_to_dist(DTYPE_t dist) except -1:
     return sqrt(dist)
 
+
 cdef int euclidean_cdist(DTYPE_t[:, ::1] X, DTYPE_t[:, ::1] Y,
                          DTYPE_t[:, ::1] D) except -1
 
+
 ######################################################################
 # DistanceMetric base class
 cdef class DistanceMetric: