Use os.urandom().

Author: serhiy-storchaka

Lib/asyncio/windows_utils.py

@@ -8,7 +8,6 @@
 import _winapi
 import msvcrt
 import os
-import random
 import subprocess
 import warnings
 
@@ -51,7 +50,7 @@ def pipe(*, duplex=False, overlapped=(True, True), bufsize=BUFSIZE):
     h1 = h2 = None
     try:
         while True:
-            address = r'\\.\pipe\python-pipe-' + random.randbytes(8).hex()
+            address = r'\\.\pipe\python-pipe-' + os.urandom(8).hex()
             try:
                 h1 = _winapi.CreateNamedPipe(
                     address, openmode, _winapi.PIPE_WAIT,

Lib/multiprocessing/connection.py

@@ -12,7 +12,6 @@
 import errno
 import io
 import os
-import random
 import sys
 import socket
 import struct
@@ -76,7 +75,7 @@ def arbitrary_address(family):
     elif family == 'AF_UNIX':
         return tempfile.mktemp(prefix='sock-', dir=util.get_temp_dir())
     elif family == 'AF_PIPE':
-        return r'\\.\pipe\pyc-' + random.randbytes(8).hex()
+        return r'\\.\pipe\pyc-' + os.urandom(8).hex()
     else:
         raise ValueError('unrecognized family')