Build Failure on ports-10.12_x86_64: py26-pybtex, py37-pybtex

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.12_x86_64
Full logs:    https://build.macports.org/builders/ports-10.12_x86_64-watcher/builds/15386
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-pybtex
Subport list:
	- py27-pybtex
	- py-pybtex
	- py26-pybtex
	- py36-pybtex
	- py37-pybtex
Variants:     None
Revision:     390e51b2b953b3f3d1b555313964ba3ce044452e
Build time:   0:17:02
Author:       Perry E. Metzger <pmetzger at macports.org>

Log from failed builds:
	Building 'py26-pybtex' ... [ERROR] (failed to calculate dependencies)
	> maintainers: .
	Building 'py37-pybtex' ... [ERROR] (failed to calculate dependencies)
	> maintainers: .

Broken ports:
	- py26-pybtex
	- py37-pybtex

Links to individual build jobs:
- ports-10.12_x86_64-builder #63301
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63301
- ports-10.12_x86_64-builder #63302
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63302
- ports-10.12_x86_64-builder #63303
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63303
- ports-10.12_x86_64-builder #63304
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63304
- ports-10.12_x86_64-builder #63305
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63305

-- 
Best regards,
MacPorts Buildbot
https://build.macports.org/