commit 0c59a0732f10c42940fd7b8b6698e43d52441b7b
Author: Tim Burke <tim.burke@gmail.com>
Date:   Fri Oct 16 14:48:40 2020 -0700

    Update git submodules
    
    * Update swift from branch 'master'
      - Get unit tests passing on py39
    
        They finally got rid of Thread.isAlive, having added Thread.is_alive as
        an alias back in 2.6.
    
        array.tostring is also gone; use array.tofile instead, but only on py3.
    
        Change-Id: I0b7e426c60118a5df879a8908729d7feb12dfc1b

diff --git a/swift b/swift
index 127bf97..6b7eeca 160000
--- a/swift
+++ b/swift
@@ -1 +1 @@
-Subproject commit 127bf9707c383ac737fce9f243bcc8f6655910df
+Subproject commit 6b7eecab5de70b454fa836515183432e1a97359c