<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>The problem is due to the upgrade of python3 from 3.6 to 3.7 version.<br></div><div><br data-mce-bogus="1"></div><div> In line 81 of /usr/share/pyzo/pyzo/yoton/clientserver.py, there is:<br></div><div> def __init__(self, address, async=False, verbose=0):<br>which is not possible anymore as async is now a reserved name. <br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>A simple solution: change async to another name (e.g. asyn) in this line and in the line it is used (line 85):</div><div>self._async = async<br><br data-mce-bogus="1"></div><div>This simple modification solves the problem and enable to correctly finish the installation of all updated python3 packages. As far as I could try, pyzo can also be launched (but I have not tested it thoroughly, so there may be other similar bugs somewhere else in the code).<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Raphaël<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div></div></body></html>