py2.7.5 compatibility fix

10 jobs for py275-fix in 4 minutes and 20 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #834361
build:debian:jessie

00:03:08

passed #834362
build:debian:stretch

00:01:34

passed #834360
build:el7

00:01:22

passed #834359
build:tarball

00:00:30

 
  Test
passed #834367
docs

00:01:03

passed #834368
syntax

00:01:10

passed #834363
test:python2.7

00:00:50

84.0%
passed #834364
test:python3.5

00:00:45

84.0%
passed #834365
test:python3.6

00:01:02

84.0%
passed #834366
test:python3.7

00:00:48

84.0%