we have os.path.abspath() and os.path.realpath(). the difference according to the documentation is realpath() returns the physical path (i.e. no symlinks in the path). while abspath() uses getcwd() but because of POSIX.1-2008 (IEEE Std 1003.1-2008) says os.getcwd() returns without symbolic links as well, so os.path.abspath() == os.path.realpath() near as I can tell. I think os.path.abspath() should return a logical path(i.e. one with symlinks). The only solution I know of is to getenv('PWD') except that is not guaranteed to be around in POSIX (some BSD's don't offer PWD I understand). The other option is to ask /bin/pwd which is part of the POSIX standard. Anyways, I couldn't find a previous bug around this issue, but I think there should be a way in the standard library to get a logical path, as well as a realpath().
> while abspath() uses getcwd() but because of POSIX.1-2008 (IEEE Std > 1003.1-2008) says os.getcwd() returns without symbolic links as well, > so os.path.abspath() == os.path.realpath() near as I can tell. Just because getcwd() doesn't contain any symbolic links doesn't mean the rest of the path is stripped of all symlinks. > I think there should be a way in the standard library to get a logical > path, as well as a realpath(). This doesn't make sense. There could be an arbitrary number of "logical" paths pointing to a single physical one. Which one should Python choose?
Antoine, I see your point about getcwd() not having symlinks, doesn't mean any path outside of getcwd() might have symlinks, and I agree this is true. I apologize. As for which one to choose, it should choose based on PWD (i.e. the current working directory's parent directories). I'd love to see something like os.path.abspath(path, logical=True) which would use PWD instead of getcwd() to get the current working directories path. i.e. symlinks are honored within the current path. From a language perspective this probably means needing os.getpwd() or something similar, that would return the pwd information. I know pwd isn't always guaranteed to be around, so the failsafe should be to return getcwd() in that case, just like os.path.abspath() does now.
