tree 11e4d355d5d8d5a03a14a5df5349546943e1166a
parent 4246edda7c055359443ec44a0b862310042d3a1d
author Guido van Rossum <guido@python.org> 861982711 +0000
committer Guido van Rossum <guido@python.org> 861982711 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/legacy-trunk%407815

Expand one level of symbolic link in sys.argv[0] before inserting its
dirname in sys.path.  This means that you can create a symbolic link
foo in /usr/local/bin pointing to /usr/yourname/src/foo/foo.py, and
then invoking foo will insert /usr/yourname/src/foo in sys.path, not
/usr/local/bin.  This makes it easier to have multifile programs
(before, the program would have to do an os.readlink(sys.argv[0])
itself and insert the resulting directory in sys.path -- Grail does
this).

Note that the expansion is only used for sys.path; sys.argv[0] is
still the original, unadorned filename (/usr/local/bin/foo in the
example).