/usr/lib/python2.7/dist-packages/pywcs/hooks.py is in python-pywcs 1.12-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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To compile another package that wants to link with the C code in pywcs:
[build_ext]
pre-hook.pywcs = pywcs.hooks.setup
[extension=drizzlepac.cdriz]
include_dirs = numpy pywcs
libraries = pywcs m
'''
import os
def setup(command_obj) :
# warning if we somehow get called when not building a c extension
command_name = command_obj.get_command_name()
if command_name != 'build_ext':
log.warn('%s is meant to be used with the build_ext command only; '
'it is not for use with the %s command.' %
(__name__, command_name))
# get information from pywcs (ourselves)
import pywcs
pywcslib = pywcs.__path__[0]
includes = [os.path.join(pywcslib, 'include'),
os.path.join(pywcslib, 'include', 'wcslib')]
# each place where the include directory is named exactly "pywcs",
# replace it with the include directories computed above
for extension in command_obj.extensions:
if 'pywcs' not in extension.include_dirs:
continue
idx = extension.include_dirs.index('pywcs')
for inc in includes:
extension.include_dirs.insert(idx, inc)
extension.include_dirs.remove('pywcs')
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