Issue #27706: Fix regression in random.seed(somestr, version=1)

1 files changed, 7 insertions, 0 deletions

diff --git a/Lib/random.py b/Lib/random.py
index 5950735e3e..06513c824f 100644
--- a/Lib/random.py
+++ b/Lib/random.py
@@ -112,6 +112,13 @@ class Random(_random.Random):
                 import time
                 a = int(time.time() * 256) # use fractional seconds
 
+        if version == 1 and isinstance(a, (str, bytes)):
+            x = ord(a[0]) << 7 if a else 0
+            for c in a:
+                x = ((1000003 * x) ^ ord(c)) & 0xFFFFFFFFFFFFFFFF
+            x ^= len(a)
+            a = -2 if x == -1 else x
+
         if version == 2:
             if isinstance(a, (str, bytes, bytearray)):
                 if isinstance(a, str):