* test/lisp/emacs-lisp/package-resources/package-test-server.py:
Support Python 3.
* test/lisp/emacs-lisp/package-tests.el
(package-test-update-archives-async): Search for an executable
named "python", "python3", or "python2". (Bug#70722)
Co-authored-by: Lin Sun <sunlin7@hotmail.com>
* test/lisp/emacs-lisp/package-resources/package-test-server.py: Set
'server_address' when port number is given on the command line. Print
IP and port number as a URL, and flush it after printing.
* test/lisp/emacs-lisp/package-tests.el:
(package-test-update-archives-async): Grab the whole URL from server
output.
* test/lisp/emacs-lisp/package-resources/package-test-server.py:
Do not hard-code port.
* test/lisp/emacs-lisp/package-tests.el (package-test-update-archives-async):
Update for the above change.
