webkit2-gtk failed to build

[amadeus24]

Tried to install webkit2-gtk, but build fails with the following message:

:info:build Traceback (most recent call last):
:info:build   File "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/webkitgtk-2.11.4/Tools/gtk/generate-inspector-gresource-manifest.py", line 18, in <module>
:info:build     import argparse
:info:build ImportError: No module named argparse
:info:build make[2]: *** [DerivedSources/webkit2gtk/InspectorGResourceBundle.xml] Error 1
:info:build make[2]: *** Waiting for unfinished jobs....
:info:build make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/build'
:info:build make[1]: *** [Source/WebKit2/CMakeFiles/WebKit2.dir/all] Error 2
:info:build make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/build'
:info:build make: *** [all] Error 2
:info:build make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/build'
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/build" && /usr/bin/make -j8 -w all VERBOSE=ON 
:info:build Exit code: 2
:error:build org.macports.build for port webkit2-gtk returned: command execution failed
:debug:build Error code: CHILDSTATUS 44916 2
:debug:build Backtrace: command execution failed
    while executing
"system -nice 0 $fullcmdstring"
    ("eval" body line 1)
    invoked from within
"eval system $notty $nice \$fullcmdstring"
    invoked from within
"command_exec build"
    (procedure "portbuild::build_main" line 8)
    invoked from within
"portbuild::build_main org.macports.build"
    ("eval" body line 1)
    invoked from within
"eval $procedure $targetname"
:info:build Warning: targets not executed for webkit2-gtk: org.macports.activate org.macports.build org.macports.destroot org.macports.install