Fix numpy DeprecationWarning when converting integers to PyTensor Constants

Author: ricardoV94

pytensor/misc/safe_asarray.py

@@ -32,7 +32,7 @@ def _asarray(a, dtype, order=None):
     if str(dtype) == "floatX":
         dtype = config.floatX
     dtype = np.dtype(dtype)  # Convert into dtype object.
-    rval = np.asarray(a, dtype=dtype, order=order)
+    rval = np.asarray(a, order=order).astype(dtype)
     # Note that dtype comparison must be done by comparing their `num`
     # attribute. One cannot assume that two identical data types are pointers
     # towards the same object (e.g. under Windows this appears not to be the

tests/tensor/test_basic.py

@@ -1,4 +1,5 @@
 import itertools
+import warnings
 from functools import partial
 from tempfile import mkstemp
 
@@ -3171,6 +3172,7 @@ def ok(z, floatX):
                 ok(np.float64(x), floatX)
 
 
+@pytest.mark.filterwarnings("error")
 class TestLongTensor:
     def test_fit_int64(self):
         bitwidth = PYTHON_INT_BITWIDTH