[root@inet noc]# ./scripts/check-postgis.py
Checking PostGIS installation
   ... not found
Installing postgis
Traceback (most recent call last):
  File "./scripts/check-postgis.py", line 241, in <module>
    PGDriver().check()
  File "./scripts/check-postgis.py", line 65, in check
    self.install_postgis()
  File "./scripts/check-postgis.py", line 205, in install_postgis
    self.check_paths()
  File "./scripts/check-postgis.py", line 69, in check_paths
    self.assert_dir(self.pg_sharedir)
  File "./scripts/check-postgis.py", line 100, in assert_dir
    if not os.path.isdir(path):
  File "/opt/noc/lib64/python2.6/genericpath.py", line 41, in isdir
    st = os.stat(s)
TypeError: coercing to Unicode: need string or buffer, NoneType found