Build Failure on ports-10.9_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.9_x86_64
Full logs:    https://build.macports.org/builders/ports-10.9_x86_64-watcher/builds/38466
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-zope-event
Subport list:
	- py39-zope-event
Variants:     None
Revision:     0f59a9c1b316bd05ed448b71c39522a5cdaf1808
Build time:   0:04:28
Author:       Ryan Schmidt <ryandesign at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.9_x86_64-builder #128383
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/128383

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MacPorts Buildbot
https://build.macports.org/