requires and provides. requires is a sequence of strings, of the
form 'packagename-version'. The dependency checking so far merely
does an '__import__(packagename)' and checks for packagename.__version__
You can also leave off the version, and any version of the package
will be installed.
There's a special case for the package 'python' - sys.version_info
is used, so
requires= ( 'python-2.3', )
just works.
Provides is of the same format as requires - but if it's not supplied,
a provides is generated by adding the version to each entry in packages,
or modules if packages isn't there.
Provides is currently only used in the PKG-INFO file. Shortly, PyPI
will grow the ability to accept these lines, and register will be
updated to send them.
There's a new command 'checkdep' command that runs these checks.
For this version, only greater-than-or-equal checking is done. We'll
add the ability to specify an optional operator later.
necessary to support it.
Details:
- build command additionally calls build_scripts
- build_scripts builds your scripts in 'build/scripts' and adjusts the
first line if it begins with "#!" and ends with "python", optionally
ending with commandline options (like -O, -t ...). Adjusting means we
write the current path to the Python interpreter in the first line.
- install_scripts copies the scripts to the install_scripts dir
- install_data copies your data_files in install_data. You can
supply individual directories for your data_files:
data_files = ['doc/info.txt', # copy this file in install_scripts dir
('testdata', ['a.dat', 'b.dat']), # copy these files in
# install_scripts/testdata
('/etc', ['packagerc']), # copy this in /etc. When --root is
# given, copy this in rootdir/etc
]
So you can use the --root option with absolute data paths.
adds the 'install_data' and 'install_scripts' commands; these two
are trivial thanks to the 'install_misc' base class in cmd.py.
(Minor tweaks and commentary by me; the code is untested so far.)
Martin v. Löwis
Anthony Baxter
Andrew M. Kuchling
Marc-André Lemburg
Greg Ward
Gregory P. Smith