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+:mod:`macholib.dyld` --- Dyld emulation
+=======================================
+
+.. module:: macholib.dyld
+ :synopsis: Emulation of functonality of the dynamic linker
+
+This module defines a number of functions that can be used
+to emulate the functionality of the dynamic linker (``dyld``)
+w.r.t. looking for library files and framworks.
+
+.. function:: dyld_image_suffix([env])
+
+ Looks up the suffix to append to shared library and
+ framework names and returns this value when found.
+ Returns ``None`` when no suffix should be appended.
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+ See the description of ``DYLD_IMAGE_SUFFIX`` in the
+ manual page for dyld(1) for more information.
+
+.. function:: dydl_framework_path([env])
+
+ Returns a user-specified framework search path,
+ or an empty list when only the default search path
+ should be used.
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+ See the description of ``DYLD_FRAMEWORK_PATH`` in the
+ manual page for dyld(1) for more information.
+
+.. function:: dyld_library_path([env])
+
+ Returns a user-specified library search path,
+ or an empty list when only the default search path
+ should be used.
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+ See the description of ``DYLD_LIBRARY_PATH`` in the
+ manual page for dyld(1) for more information.
+
+.. function:: dyld_fallback_framework_path([env])
+
+ Return a user specified list of of directories where
+ to look for frameworks that aren't in their install path,
+ or an empty list when the default fallback path should
+ be used.
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+ See the description of ``DYLD_FALLBACK_FRAMEWORK_PATH`` in the
+ manual page for dyld(1) for more information.
+
+.. function:: dyld_fallback_library_path([env])
+
+ Return a user specified list of of directories where
+ to look for libraries that aren't in their install path,
+ or an empty list when the default fallback path should
+ be used.
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+ See the description of ``DYLD_FALLBACK_LIBRARY_PATH`` in the
+ manual page for dyld(1) for more information.
+
+.. function:: dyld_image_suffix_search(iterator[, env])
+
+ Yields all items in *iterator*, and prepents names
+ with the image suffix to those items when the suffix
+ is specified.
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+.. function:: dyld_override_search(name[, env])
+
+ If *name* is a framework name yield filesystem
+ paths relative to the entries in the framework
+ search path.
+
+ Always yield the filesystem paths relative to the
+ entries in the library search path.
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+.. function:: dyld_executable_path_search(name, executable_path)
+
+ If *name* is a path starting with ``@executable_path/`` yield
+ the path relative to the specified *executable_path*.
+
+ If *executable_path* is None nothing is yielded.
+
+.. function:: dyld_loader_search(name, loader_path)
+
+ If *name* is a path starting with ``@loader_path/`` yield
+ the path relative to the specified *loader_path*.
+
+ If *loader_path* is None nothing is yielded.
+
+ .. versionadded: 1.6
+
+.. function:: dyld_default_search(name[, env])
+
+ Yield the filesystem locations to look for a dynamic
+ library or framework using the default locations
+ used by the system dynamic linker.
+
+ This function will look in ``~/Library/Frameworks``
+ for frameworks, even though the system dynamic linker
+ doesn't.
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+.. function:: dyld_find(name[, executable_path[, env [, loader]]])
+
+ Returns the path of the requested dynamic library,
+ raises :exc:`ValueError` when the library cannot be found.
+
+ This function searches for the library in the same
+ locations and de system dynamic linker.
+
+ The *executable_path* should be the filesystem path
+ of the executable to which the library is linked (either
+ directly or indirectly).
+
+ The *env* argument is a dictionary, which defaults
+ to :data:`os.environ`.
+
+ The *loader_path* argument is an optional filesystem path for
+ the object file (binary of shared library) that references
+ *name*.
+
+ .. versionchanged:: 1.6
+
+ Added the *loader_path* argument.
+
+.. function:: framework_find(fn[, executable_path[, env]])
+
+ Find a framework using the same semantics as the
+ system dynamic linker, but will accept looser names
+ than the system linker.
+
+ This function will return a correct result for input
+ values like:
+
+ * Python
+
+ * Python.framework
+
+ * Python.framework/Versions/Current