Merge pull request #162 from m-dz/possible_fix_for_153

Possible fix for #153

Author: lmcinnes

hdbscan/dist_metrics.pxd

@@ -3,8 +3,12 @@
 #cython: wraparound=False
 #cython: cdivision=True
 
+import cython
 cimport cython
+
+import numpy as np
 cimport numpy as np
+
 from libc.math cimport fabs, sqrt, exp, cos, pow
 
 ctypedef np.double_t DTYPE_t

hdbscan/dist_metrics.pyx

@@ -1135,10 +1135,9 @@ cdef class PyFuncDistance(DistanceMetric):
                              ITYPE_t size) except -1 with gil:
         cdef np.ndarray x1arr
         cdef np.ndarray x2arr
-        with gil:
-            x1arr = _buffer_to_ndarray(x1, size)
-            x2arr = _buffer_to_ndarray(x2, size)
-            return self.func(x1arr, x2arr, **self.kwargs)
+        x1arr = _buffer_to_ndarray(x1, size)
+        x2arr = _buffer_to_ndarray(x2, size)
+        return self.func(x1arr, x2arr, **self.kwargs)
 
 
 cdef inline double fmax(double a, double b) nogil: