Missing dependency for py35-pyfits

[informatimago (Pascal J. Bourguignon)]

Installing py35-pyfits fails:

--->  Verifying checksums for py35-pyfits
--->  Extracting py35-pyfits
--->  Configuring py35-pyfits
--->  Building py35-pyfits
Error: org.macports.build for port py35-pyfits returned: command execution failed
Please see the log file for port py35-pyfits for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_python_py-pyfits/py35-pyfits/main.log
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port py35-pyfits failed

with main.log containing:

:info:build ImportError: No module named 'Help2Man'
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_python_py-pyfits/py35-pyfits/work/pyfits-3.3" && /opt/local/Library/Frameworks/Python.framework/Versions/3.5/bin/python3.5 setup.py --no-user-cfg build

Note: even after installing help2man, (help2man @1.47.4_1 (textproc)), it still fails to find the Help2Main package; would that be a case problem?

[informatimago (Pascal J. Bourguignon)]

log before port install help2man

[informatimago (Pascal J. Bourguignon)]

main.log after port install help2man

[mf2k (Frank Schima)]

In the future, please fill in the Port field and Cc the port maintainers (port info --maintainers py35-pyfits), if any.

[lpsinger (Leo Singer)]

Note that py-pyfits is obsolete and is replaced by py-astropy (#52649).