system ()): # already_checked just saves a few microseconds -) If ( not already_checked_os ) and ( 'Darwin' != platform. replace ( ' ', '' ) if ( 'true' = line2 ): return True else : return False else : print ( 'resolve_osx_alias: Error: subprocess returned non-zero exit code ' + str ( retval )) return None # returns the full path of the file 'pointed to' by the aliasĭef resolve_osx_alias ( path, already_checked_os = False, convert = False ): # single file/path name Popen ( args, shell = False, stdout = subprocess. split ( cmd ) # shlex splits cmd up appropriately so we can call subprocess.Popen with shell=False (better security) Line_1 = 'tell application 'Finder'' line_2 = 'set theItem to (POSIX file '' + checkpath + '') as alias' line_3 = 'if the kind of theItem is 'alias' then' line_4 = ' return true' line_5 = 'else' line_6 = ' return false' line_7 = 'end if' line_8 = 'end tell' cmd = 'osascript -e '' + line_1 + '' -e '' + line_2 + '' -e '' + line_3 + '' -e '' + line_4 + '' -e '' + line_5 + '' -e '' + line_6 + '' -e '' + line_7 + '' -e '' + line_8 + ''' args = shlex.

abspath ( path ) # osascript needs absolute paths Import subprocess import platform import os # returns true if a file is an OSX alias, false otherwiseĭef isAlias ( path, already_checked_os = False ): if ( not already_checked_os ) and ( 'Darwin' != platform.

# but if you set convert=True, it will also convert aliases to symbolic links. # NOTE: By default, this only returns the names of the original source files, # TODO: - could make it work in parallel when mutliple filenames are given # Requirements: osascript (AppleScript), platform, subprocess, shlex # Intended to be called from within other python code Run these to change the filename before trying to read a file. Trying to read one will probably crash your code. # Mac OSX aliases are not symbolic links. # Resolve Mac OS X 'aliases' by finding where they point to Links, so that “next time” you won’t have to deal with this. As an added bonus, you can tell it to convert aliases to symbolic Happy to share with you, so that you won’t have to worry about this. Old post on MacWorld where one solution is given, and I ported that There is a mac_alias package but the documentation is lacking. There used to be some libraries to handle this, but they relied on Apple’s old Carbon framework which is no longer supported. Instead, they will cause an exception to be thrown. Written in UNIX will not follow or “resolve” Mac aliases. UNIX users are accustomed to symbolic links, and codes This creates an “alias”, which is a special file that Apple dreamed up. Other places on their machine, and this is most easily achieved for many of them by Cmd-Option-Dragging and dropping the files. In an app I’m developing, I want users to be able to easily create a “library” of symbolic links to

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