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Diffstat (limited to 'Lib/lib-old/addpack.py')
-rw-r--r-- | Lib/lib-old/addpack.py | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/Lib/lib-old/addpack.py b/Lib/lib-old/addpack.py deleted file mode 100644 index 2fb2601..0000000 --- a/Lib/lib-old/addpack.py +++ /dev/null @@ -1,67 +0,0 @@ -# This module provides standard support for "packages". -# -# The idea is that large groups of related modules can be placed in -# their own subdirectory, which can be added to the Python search path -# in a relatively easy way. -# -# The current version takes a package name and searches the Python -# search path for a directory by that name, and if found adds it to -# the module search path (sys.path). It maintains a list of packages -# that have already been added so adding the same package many times -# is OK. -# -# It is intended to be used in a fairly stylized manner: each module -# that wants to use a particular package, say 'Foo', is supposed to -# contain the following code: -# -# from addpack import addpack -# addpack('Foo') -# <import modules from package Foo> -# -# Additional arguments, when present, provide additional places where -# to look for the package before trying sys.path (these may be either -# strings or lists/tuples of strings). Also, if the package name is a -# full pathname, first the last component is tried in the usual way, -# then the full pathname is tried last. If the package name is a -# *relative* pathname (UNIX: contains a slash but doesn't start with -# one), then nothing special is done. The packages "/foo/bar/bletch" -# and "bletch" are considered the same, but unrelated to "bar/bletch". -# -# If the algorithm finds more than one suitable subdirectory, all are -# added to the search path -- this makes it possible to override part -# of a package. The same path will not be added more than once. -# -# If no directory is found, ImportError is raised. - -_packs = {} # {pack: [pathname, ...], ...} - -def addpack(pack, *locations): - import os - if os.path.isabs(pack): - base = os.path.basename(pack) - else: - base = pack - if _packs.has_key(base): - return - import sys - path = [] - for loc in _flatten(locations) + sys.path: - fn = os.path.join(loc, base) - if fn not in path and os.path.isdir(fn): - path.append(fn) - if pack != base and pack not in path and os.path.isdir(pack): - path.append(pack) - if not path: raise ImportError, 'package ' + pack + ' not found' - _packs[base] = path - for fn in path: - if fn not in sys.path: - sys.path.append(fn) - -def _flatten(locations): - locs = [] - for loc in locations: - if type(loc) == type(''): - locs.append(loc) - else: - locs = locs + _flatten(loc) - return locs |