[MacPorts] #56127: How to get the py27-pygraphviz py27-goocanvas py27-kiwi dependencies for Macports on OS 10.11.6

[MacPorts]

#56127: How to get the py27-pygraphviz py27-goocanvas py27-kiwi  dependencies for
Macports on OS 10.11.6
-------------------------------------+-------------------------------------
 Reporter:  mohibi                   |      Owner:
     Type:  defect                   |     Status:  new
 Priority:  Normal                   |  Milestone:
Component:  ports                    |    Version:
 Keywords:  py27-pygraphviz          |       Port:  py27-pygraphviz
  py27-goocanvas py27-kiwi           |  py27-goocanvas py27-kiwi
-------------------------------------+-------------------------------------
 How to get the py27-pygraphviz py27-goocanvas py27-kiwi  dependencies for
 Macports on OS 10.11.6?
 This is the error i got and shared earlier
 > 166:~ mohibihussain$ sudo port install  py27-pygraphviz py27-goocanvas
 > py27-kiwi
 > Password:
 > Warning: xcodebuild exists but failed to execute
 > Warning: Xcode does not appear to be installed; most ports will likely
 > fail to build.
 > --->  Computing dependencies for py27-pygraphviz
 > --->  Cleaning py27-pygraphviz
 > Warning: Xcode does not appear to be installed; most ports will likely
 > fail to build.
 > Warning: All compilers are either blacklisted or unavailable; defaulting
 > to first fallback option
 > Warning: All compilers are either blacklisted or unavailable; defaulting
 > to first fallback option
 > --->  Computing dependencies for py27-goocanvas
 > --->  Staging py27-goocanvas into destroot
 > Error: Failed to destroot py27-goocanvas: command execution failed
 > Error: See
 >
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports
 > .org_macports_release_tarballs_ports_python_py-
 > goocanvas/py27-goocanvas/main.log for details.
 > Error: Follow https://guide.macports.org/#project.tickets to report a
 > bug.
 I am wondering if this is lack of support of Macports for py27-pygraphviz
 py27-goocanvas py27-kiwi or is it because of Xcode being missing and using
 only command line

 This is the log after cleaning as suggested earlier.
 166:~ mohibihussain$ sudo port clean py27-goocanvas
 Password:
 Warning: xcodebuild exists but failed to execute
 --->  Cleaning py27-goocanvas
 166:~ mohibihussain$

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Ticket URL: <https://trac.macports.org/ticket/56127>
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