random-python
diff --git a/‎scipy/optimize/_milp.py
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+1-1Lines changed: 1 addition & 1 deletion b/‎scipy/optimize/_milp.py
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+1-1Lines changed: 1 addition & 1 deletion
diff --git a/‎scipy/sparse/__init__.py
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+1-4Lines changed: 1 addition & 4 deletions b/‎scipy/sparse/__init__.py
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+1-4Lines changed: 1 addition & 4 deletions
diff --git a/‎scipy/sparse/_arrays.py
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-98Lines changed: 0 additions & 98 deletions b/‎scipy/sparse/_arrays.py
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-98Lines changed: 0 additions & 98 deletions
@@ -61,7 +61,7 @@ def _constraints_to_components(constraints):
         b_us.append(np.atleast_1d(constraint.ub).astype(np.double))
 
     if len(As) > 1:
-        A = vstack(As)
+        A = vstack(As, format="csc")
         b_l = np.concatenate(b_ls)
         b_u = np.concatenate(b_us)
     else:  # avoid unnecessary copying
 
@@ -279,12 +279,9 @@
 from ._bsr import *
 from ._construct import *
 from ._extract import *
+from ._matrix import spmatrix
 from ._matrix_io import *
 
-from ._arrays import (
-    csr_array, csc_array, lil_array, dok_array, coo_array, dia_array, bsr_array
-)
-
 # For backward compatibility with v0.19.
 from . import csgraph