All entropy/seed not None must be non-negative

1 files changed, 3 insertions, 0 deletions

diff --git a/numpy/random/bit_generator.pyx b/numpy/random/bit_generator.pyx
index 3da4fabce..9a7917462 100644
--- a/numpy/random/bit_generator.pyx
+++ b/numpy/random/bit_generator.pyx
@@ -260,6 +260,7 @@ cdef class SeedSequence():
     ----------
     entropy : {None, int, sequence[int]}, optional
         The entropy for creating a `SeedSequence`.
+        note: all entropy not None must be non-negative.
     spawn_key : {(), sequence[int]}, optional
         An additional source of entropy based on the position of this
         `SeedSequence` in the tree of such objects created with the
@@ -490,6 +491,8 @@ cdef class BitGenerator():
         ``array_like[ints]`` is passed, then it will be passed to
         `~numpy.random.SeedSequence` to derive the initial `BitGenerator` state.
         One may also pass in a `SeedSequence` instance.
+        
+        note: all seed not None must be non-negative.
 
     Attributes
     ----------