Use relative imports in skimage files

skimage/transform/_hough_transform.pyx

@@ -10,12 +10,12 @@ cimport cython
 from libc.math cimport abs, fabs, sqrt, ceil, atan2, M_PI
 from libc.stdlib cimport rand
 
-from skimage.draw import circle_perimeter
+from ..draw import circle_perimeter
 
 cdef double PI_2 = 1.5707963267948966
 cdef double NEG_PI_2 = -PI_2
 
-from skimage._shared.interpolation cimport round
+from .._shared.interpolation cimport round
 
 
 def _hough_circle(cnp.ndarray img,

skimage/transform/_warps_cy.pyx

@@ -4,10 +4,10 @@
 #cython: wraparound=False
 import numpy as np
 cimport numpy as cnp
-from skimage._shared.interpolation cimport (nearest_neighbour_interpolation,
-                                            bilinear_interpolation,
-                                            biquadratic_interpolation,
-                                            bicubic_interpolation)
+from .._shared.interpolation cimport (nearest_neighbour_interpolation,
+                                      bilinear_interpolation,
+                                      biquadratic_interpolation,
+                                      bicubic_interpolation)
 
 
 cdef inline void _matrix_transform(double x, double y, double* H, double *x_,

skimage/transform/hough_transform.py

@@ -1,6 +1,6 @@
 import numpy as np
 from scipy import ndimage
-from skimage import measure, morphology
+from .. import measure, morphology
 from ._hough_transform import _hough_circle
 
 

skimage/transform/pyramids.py

@@ -1,8 +1,8 @@
 import math
 import numpy as np
 from scipy import ndimage
-from skimage.transform import resize
-from skimage.util import img_as_float
+from ..transform import resize
+from ..util import img_as_float
 
 
 def _smooth(image, sigma, mode, cval):