NAME

       dh_python3 - calculates Python dependencies, adds maintainer scripts to byte compile files, etc.

SYNOPSIS

          dh_python3 -p PACKAGE [-V [X.Y][-][A.B]] DIR [-X REGEXPR]

DESCRIPTION

   QUICK GUIDE FOR MAINTAINERS
          • if necessary, describe supported Python 3 versions via X-Python3-Version field in debian/control,

          • build-depend on python3 or python3-all or python3-all-dev,

          • build  module/application  using  its  standard  build  system, remember to build extensions for all
            supported Python 3 versions (loop over py3versions -vr),

          • install files to the standard locations, add --install-layout=deb to setup.py's install  command  if
            your package is using distutils,

          • add python3 to dh's --with option, or:

          • include  /usr/share/cdbs/1/class/python-distutils.mk in debian/rules and depend on cdbs (>= 0.4.90),
            or:

          • call dh_python3 in the binary-* target,

          • add ${python3:Depends} to Depends

   NOTES
   dependencies
       dh_python3 tries to translate Python dependencies from requires.txt  file  to  Debian  dependencies.  Use
       debian/py3dist-overrides  or  --no-guessing-deps  option to override it if the guess is incorrect. If you
       want  dh_python3  to  generate  more  strict  dependencies  (f.e.   to   avoid   ABI   problems)   create
       debian/python3-foo.pydist  file.  See /usr/share/doc/dh-python/README.PyDist for more information. If the
       pydist file contains PEP386 flag or set of  (uscan  like)  rules,  dh_python3  will  make  the  depedency
       versioned (version requirements are ignored by default).

   private dirs
       /usr/share/foo, /usr/share/games/foo, /usr/lib/foo and /usr/lib/games/foo private directories are scanned
       for  Python files by default (where foo is binary package name). If your package is shipping Python files
       in some other directory, add another dh_python3 call in debian/rules with directory name as an argument -
       you can use different set of options in this call. If  you  need  to  change  options  (f.e.  a  list  of
       supported  Python  3 versions) for a private directory that is checked by default, invoke dh_python3 with
       --skip-private option and add another call with a path to this directory and new options.

   debug packages
       In binary packages which name ends with -dbg, all files in /usr/lib/python3/dist-packages/ directory that
       have extensions different than so or h are removed by default.  Use --no-dbg-cleaning option  to  disable
       this feature.

   overriding supported / default Python versions
       If  you  want  to override system's list of supported Python versions or the default one (f.e. to build a
       package that includes symlinks for  older  version  of  Python  or  compile  .py  files  only  for  given
       interpreter version), you can do that via DEBPYTHON3_SUPPORTED and/or DEBPYTHON3_DEFAULT env. variables.

       Example: 3.2,3.3 limits the list of supported Python versions to Python 3.2 and Python 3.3.

OPTIONS

       --version
              show program's version number and exit

       -h, --help
              show help message and exit

       --no-guessing-deps
              disable guessing dependencies

       --no-dbg-cleaning
              do not remove any files from debug packages

       --no-ext-rename do not add magic tags nor multiarch tuples to extension file names

       --no-shebang-rewrite
              do not rewrite shebangs

       --skip-private
              don't check private directories

       -v, --verbose
              turn verbose mode on

       -i, --indep
              act on architecture independent packages

       -a, --arch
              act on architecture dependent packages

       -q, --quiet
              be quiet

       -p PACKAGE, --package=PACKAGE
              act on the package named PACKAGE

       -N NO_PACKAGE, --no-package=NO_PACKAGE
              do not act on the specified package

       -V VRANGE
              specify list of supported Python 3 versions. See py3compile(1) for examples

       -X REGEXPR, --exclude=REGEXPR
              exclude  items that match given REGEXPR. You may use this option multiple times to build up a list
              of things to exclude.

       --compile-all
              compile all files from given private directory in postinst/rtupdate not just the ones provided  by
              the package (i.e. do not pass the --package parameter to py3compile/py3clean)

       --depends=DEPENDS
              translate  given  requirements into Debian dependencies and add them to ${python3:Depends}. Use it
              for missing items in requires.txt

       --recommends=RECOMMENDS
              translate given requirements into Debian dependencies and add them to ${python3:Recommends}

       --suggests=SUGGESTS
              translate given requirements into Debian dependencies and add them to ${python3:Suggests}

       --requires=FILENAME
              translate  requirements  from  given  file(s)  into  Debian   dependencies   and   add   them   to
              ${python3:Depends}

       --shebang=COMMAND
              use given command as shebang in scripts

       --ignore-shebangs
              do not translate shebangs into Debian dependencies

SEE ALSO

       • /usr/share/doc/python/python-policy.txt.gz

       • /usr/share/doc/dh-python/README.PyDist

       • pybuild(1)

       • py3compile(1), py3clean(1)

       • dh_python2(1), pycompile(1), pyclean(1)

       • http://deb.li/dhp3 - most recent version of this document

AUTHOR

       Piotr Ożarowski, 2012-2013

                                                                                                   DH_PYTHON3(1)