"""
Append module search paths for third-party packages to sys.path.
This is stripped down and customized for use in py2app applications
"""
import sys
# os is actually in the zip, so we need to do this here.
# we can't call it python24.zip because zlib is not a built-in module (!)
_libdir = '/lib/python' + sys.version[:3]
_parent = '/'.join(__file__.split('/')[:-1])
if not _parent.endswith(_libdir):
_parent += _libdir
sys.path.append(_parent + '/site-packages.zip')
# Stuffit decompresses recursively by default, that can mess up py2app bundles,
# add the uncompressed site-packages to the path to compensate for that.
sys.path.append(_parent + '/site-packages')
import os
def makepath(*paths):
dir = os.path.abspath(os.path.join(*paths))
return dir, os.path.normcase(dir)
for m in sys.modules.values():
f = getattr(m, '__file__', None)
if isinstance(f, basestring) and os.path.exists(f):
m.__file__ = os.path.abspath(m.__file__)
del m
# This ensures that the initial path provided by the interpreter contains
# only absolute pathnames, even if we're running from the build directory.
L = []
_dirs_in_sys_path = {}
dir = dircase = None # sys.path may be empty at this point
for dir in sys.path:
# Filter out duplicate paths (on case-insensitive file systems also
# if they only differ in case); turn relative paths into absolute
# paths.
dir, dircase = makepath(dir)
if not dircase in _dirs_in_sys_path:
L.append(dir)
_dirs_in_sys_path[dircase] = 1
sys.path[:] = L
del dir, dircase, L
_dirs_in_sys_path = None
def _init_pathinfo():
global _dirs_in_sys_path
_dirs_in_sys_path = d = {}
for dir in sys.path:
if dir and not os.path.isdir(dir):
continue
dir, dircase = makepath(dir)
d[dircase] = 1
def addsitedir(sitedir):
global _dirs_in_sys_path
if _dirs_in_sys_path is None:
_init_pathinfo()
reset = 1
else:
reset = 0
sitedir, sitedircase = makepath(sitedir)
if not sitedircase in _dirs_in_sys_path:
sys.path.append(sitedir) # Add path component
try:
names = os.listdir(sitedir)
except os.error:
return
names.sort()
for name in names:
if name[-4:] == os.extsep + "pth":
addpackage(sitedir, name)
if reset:
_dirs_in_sys_path = None
def addpackage(sitedir, name):
global _dirs_in_sys_path
if _dirs_in_sys_path is None:
_init_pathinfo()
reset = 1
else:
reset = 0
fullname = os.path.join(sitedir, name)
try:
f = open(fullname)
except IOError:
return
while 1:
dir = f.readline()
if not dir:
break
if dir[0] == '#':
continue
if dir.startswith("import"):
exec dir
continue
if dir[-1] == '\n':
dir = dir[:-1]
dir, dircase = makepath(sitedir, dir)
if not dircase in _dirs_in_sys_path and os.path.exists(dir):
sys.path.append(dir)
_dirs_in_sys_path[dircase] = 1
if reset:
_dirs_in_sys_path = None
#sys.setdefaultencoding('utf-8')
#
# Run custom site specific code, if available.
#
try:
import sitecustomize
except ImportError:
pass
#
# Remove sys.setdefaultencoding() so that users cannot change the
# encoding after initialization. The test for presence is needed when
# this module is run as a script, because this code is executed twice.
#
if hasattr(sys, "setdefaultencoding"):
del sys.setdefaultencoding
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