fix

scikit-hep · May 17, 2023 · 771f64d · 771f64d
1 parent 7e7b156
commit 771f64d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/pyhf/tensor/numpy_backend.py b/src/pyhf/tensor/numpy_backend.py
@@ -9,14 +9,16 @@
 # Needed while numpy lower bound is older than v1.21.0
 if TYPE_CHECKING:
     from numpy.typing import ArrayLike, DTypeLike, NBitBase, NDArray
+else:
+    NBitBase = "NBitBase"
 
 from scipy import special
 from scipy.special import gammaln, xlogy
 from scipy.stats import norm, poisson
 
 from pyhf.typing import Literal, Shape
 
-T = TypeVar("T", bound="NBitBase")
+T = TypeVar("T", bound=NBitBase)
 
 Tensor = Union["NDArray[np.number[T]]", "NDArray[np.bool_]"]
 FloatIntOrBool = Literal["float", "int", "bool"]