graphene @1.6.0: fails to build without python3

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/23533/steps/install-port/logs/stdio

checking for gobject-introspection... yes
checking for python3... no
checking for python3.5... no
checking for python3.4... no
checking for python3.3... no
checking for python3.2... no
checking for python3.1,... no
checking for python3.0... no
configure: error: Cannot build introspection data without Python3
DEBUG: Privilege de-escalation not attempted as not running as root.
DEBUG: build phase started at Fri Mar 17 07:55:56 UTC 2017
--->  Building graphene
DEBUG: Executing proc-pre-org.macports.build-build-0
DEBUG: Executing org.macports.build (graphene)
DEBUG: Environment: 
CC_PRINT_OPTIONS='YES'
CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_graphics_graphene/graphene/work/.CC_PRINT_OPTIONS'
CPATH='/opt/local/include'
LIBRARY_PATH='/opt/local/lib'
MACOSX_DEPLOYMENT_TARGET='10.12'
Executing:  cd "/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_graphics_graphene/graphene/work/graphene-1.6.0" && /usr/bin/make -j8 -w all CC="/usr/bin/clang -arch x86_64" 
DEBUG: system:  cd "/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_graphics_graphene/graphene/work/graphene-1.6.0" && /usr/bin/make -j8 -w all CC="/usr/bin/clang -arch x86_64" 
make: Entering directory `/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_graphics_graphene/graphene/work/graphene-1.6.0'
make: *** No rule to make target `all'.  Stop.

[raimue (Rainer Müller)]

Proposed patch

[Ionic (Mihai Moldovan)]

Any reason why you don't select the latest and greatest - python 3.6?

I've just tested with 3.6 and it seems to build fine as well.

[mf2k (Frank Schima)]

While python 3.6 is the latest version of python, I think that python 3.5 is better supported in Macports currently.

$ port list py35-* | wc -l
     525
$ port list py36-* | wc -l
     336

and

$ port echo depends:python35 | wc -l
     508
$ port echo depends:python36 | wc -l
     323

Maybe making a policy of using the latest python version would help get more py36 modules added.

[ryandesign (Ryan Carsten Schmidt)]

This ticket is about building graphene. It doesn't seem like the availability of python modules has any bearing on that. (graphene doesn't declare a dependency on any python modules, does it?)

[Ionic (Mihai Moldovan)]

It's also only a build dependency, so once the port has been built it doesn't matter in the grand scheme of things.

The only dependency is on the interpreter itself, yeah.

[raimue (Rainer Müller)]

In 1b71df7243fdd1ee6c2272978d7c249fe7f202df/macports-ports:

graphene: Add missing dependency on Python 3

Closes: #53806

[raimue (Rainer Müller)]

It is now using python36 as it makes sense to me to use the latest. There is also no other python3x port in the recursive dependencies, so it does not matter much.