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HOWTO convert package to python-central
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=======================================
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1) create "debian/pycompat" file with a content of "2"
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2) debian/control
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* source package:
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- add XS-Python-Version: header with list of python versions that package
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supports. Examples: all / >=2.3 / 2.3, 2.4 / >=2.3, <<2.6
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- extend Build-Depends: header with:
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debhelper (>= 5.0.38), python-all-dev (>= 2.3.5-11), python-central (>= 0.5.6)
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- for Egg support (optional) extend Build-Depends: header with:
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python-setuptools (>= 0.6b3-1)
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* binary package:
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- add/extend headers:
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Depends: ${python:Depends}
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XB-Python-Version: ${python:Versions}
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- change Architecture: to "all" ("any" if package contains arch dep files)
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- if previous package version had python2.X-foo packages, add:
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Conflicts: python2.X-foo (<< current_version)
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Replaces: python2.X-foo (<< current_version)
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- extend Provides: header with:
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+ ${python:Provides} if your package is arch "any"
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+ list of pythonX.Y-foo packages that external packages still depend on [1]
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* remove python2.X-foo binary packages
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3) debian/rules
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* build modules for all python versions specified in XS-Python-Version, example rules:
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PYVERS=$(shell pyversions -vr)
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build: $(PYVERS:%=build-python%)
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touch $@
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build-python%:
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python$* setup.py build
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touch $@
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install: build $(PYVERS:%=install-python%)
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install-python%:
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python$* setup.py install --root $(CURDIR)/debian/python-foo
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* replace dh_python with dh_pycentral in binary rule
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* If the public modules can't be shared, add
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export DH_PYCENTRAL=nomove
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at the top of debian/rules
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* Egg support (optional):
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- add "--single-version-externally-managed" option to setup.py install command
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- remove python's (and optionally module's) version from Egg's dirname
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- remove *-nspkg.pth file
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4) debian/{postinst,prerm}
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* remove unneeded postinst and prerm files, debhelper will generate them now
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5) example packages
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http://wiki.debian.org/DebianPython/NewPolicy#head-361ba69b3cd19d9b6bab84fbac6099268ddb3366
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# package without .so files
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apt-get source pyparallel
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# package with .so files
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apt-get source python-imaging
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# package with .so files and Egg support
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apt-get source pyenchant
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6) useful links:
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http://www.debian.org/doc/packaging-manuals/python-policy/
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http://wiki.debian.org/DebianPython/NewPolicy
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[1] remove that list as soon as external packages will depend on python-foo only
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