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"""
Installation paths.
Map the .data/ subdirectory names to install paths.
"""
import os.path
import sys
import distutils.dist as dist
import distutils.command.install as install
def get_install_paths(name):
"""
Return the (distutils) install paths for the named dist.
A dict with ('purelib', 'platlib', 'headers', 'scripts', 'data') keys.
"""
paths = {}
# late binding due to potential monkeypatching
d = dist.Distribution({'name':name})
i = install.install(d)
i.finalize_options()
for key in install.SCHEME_KEYS:
paths[key] = getattr(i, 'install_'+key)
# pip uses this path as an alternative to the system's (read-only)
# include directory:
if hasattr(sys, 'real_prefix'): # virtualenv
paths['headers'] = os.path.join(sys.prefix,
'include',
'site',
'python' + sys.version[:3])
return paths
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