Provided by: dh-python_3.20180325ubuntu2_all bug


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


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


          · if necessary, describe supported Python 3 versions  via  X-Python3-Version  field  in

          · build depend on dh-python

          · 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's
            install command if your package is using distutils,

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

          · include  /usr/share/cdbs/1/class/  in  debian/rules  and depend on
            cdbs (>= 0.4.90), or:

          · call dh_python3 in the binary-* target,

          · add ${python3:Depends} to Depends

       dh_python3 tries to translate Python dependencies from the  requires.txt  file  to  Debian
       dependencies.  In  many  cases,  this  works  without any additional configuration because
       dh_python3 comes with a build-in mapping of Python module names to Debian packages that is
       periodically  regenerated  from the Debian archive. By default, the version information in
       the Python dependencies is discarded. If you  want  dh_python3  to  generate  more  strict
       dependencies  (e.g.  to  avoid  ABI  problems),  or if the automatic mapping does not work
       correctly for your package, you have to provide dh_python3 with additional rules  for  the
       translation of Python module to Debian package dependencies.

       For  a package python3-foo that depends on a package python3-bar, there are two files that
       may provide such rules:

       1. If the python3-foo source package ships with a debian/py3dist-overrides file, this file
          is used by dh_python3 during the build of python3-foo.

       2. If the python3-bar source package ships with a debian/python3-bar.pydist file (and uses
          dh_python3),   this   file   will   be   included   in   the    binary    package    as
          /usr/share/dh-python/dist/cpython3/python3-bar.   During   the  build  of  python3-foo,
          dh_python3 will then find and use the file.

       Both files have the same format described  in  /usr/share/doc/dh-python/README.PyDist.  If
       all  you  want  is  to  generate versioned dependencies (and assuming that the python3-bar
       package provides the pybar Python module), in most cases it will be sufficient to put  the
       line pybar python3-bar; PEP386 into either of the above files.

   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.

   pyinstall files
       Files  listed  in debian/pkg.pyinstall file will be installed as public modules (i.e. into
       .../dist-packages/ directory) for all requested Python versions.

       Syntax: path/to/file [VERSION_RANGE] [NAMESPACE]

       debian directory is automatically removed from the path, so you can place  your  files  in
       debian/  directory  and  install  them  from this location (if you want to install them in
       "debian" namespace, set NAMESPACE to debian). If NAMESPACE is set, all listed  files  will
       be installed in .../dist-packages/NAMESPACE/ directory.


              · installs .../dist-packages/ for all supported Python versions

              · foo/ 3.3- installs .../dist-packages/foo/ for versions >= 3.3

              · foo/ spam installs .../dist-packages/spam/

              · debian/*.py spam.egg 3.2 installs .../python3.2/dist-packages/spam/egg/*.py files

   pyremove files
       If  you  want  to  remove some public modules (i.e. files in .../dist-packages/ directory)
       installed by build system (from all supported Python versions or only  from  a  subset  of
       these versions), add them to debian/pkg.pyremove file.


              · *.pth removes .pth files from .../dist-packages/

              · bar/ 3.2 removes .../python3.2/dist-packages/bar/

   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


              show program's version number and exit

       -h, --help
              show help message and exit

              disable guessing dependencies

              do not remove any files from debug packages

              do not add magic tags nor multiarch tuples to extension file names

              do not rewrite shebangs

              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 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

              accept upstream versions while translating Python dependencies into Debian ones

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

              translate  requirements  from  given  sections  of  requres.txt  file  into  Debian
              dependencies and add them to ${python3:Depends}.

              translate  given  requirements  into  Debian   dependencies   and   add   them   to

              translate  requirements  from  given  sections  of  requres.txt  file  into  Debian
              dependencies and add them to ${python3:Recommends}.

              translate  given  requirements  into  Debian   dependencies   and   add   them   to

              translate  requirements  from  given  sections  of  requres.txt  file  into  Debian
              dependencies and add them to ${python3:Suggests}.

              translate requirements from given file(s) into Debian dependencies and add them  to

              use given command as shebang in scripts

              do not translate shebangs into Debian dependencies


       · /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)

       · - most recent version of this document


       Piotr Ożarowski, 2012-2013