diff options
Diffstat (limited to 'Lib/secrets.py')
| -rw-r--r-- | Lib/secrets.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Lib/secrets.py b/Lib/secrets.py index 27fa4503d7..130434229e 100644 --- a/Lib/secrets.py +++ b/Lib/secrets.py @@ -26,6 +26,8 @@ choice = _sysrand.choice def randbelow(exclusive_upper_bound): """Return a random int in the range [0, n).""" + if exclusive_upper_bound <= 0: + raise ValueError("Upper bound must be positive.") return _sysrand._randbelow(exclusive_upper_bound) DEFAULT_ENTROPY = 32 # number of bytes to return by default |