try except is not working while using hdfs command

Question

Hi,
 I am trying to run following things in code, but it's not working
def create_if_not_exists(dir_fullpath):
  """Creates a given directory if it doesn't exist yet

 Args:                                                                                                                                                                                                     
    dir_fullpath: full path to the directory                                        

  if dir_fullpath.startswith("/hdfs") :
    print 'Entering hdfs area'
    hdfsdir = re.sub('/hdfs','',dir_fullpath)
    cmd  = 'hdfs dfs -mkdir -p %s' %hdfsdir
    try:
      os.system(cmd)
      print ' directory is created successfully'
    except OSError as exc:
      print 'error'
      print 'directory is not created'
      cmd = 'hdfs dfs -test -d %s' %hdfsdir
      direxist = os.system(cmd)==0
      if exc.errno == errno.EEXIST and direxist :
        pass
      else:
        raise
  else :
    print 'Entering home dir'
    cmd = 'mkdir %s' %dir_fullpath
    try :
      os.system(cmd)
      #os.makedirs(dir_fullpath)                                                                                                                                                                            
      print ' directory is created succesfully'
    except OSError as exc:
      print 'directory is not created'
      if exc.errno == errno.EEXIST and os.path.isdir(dir_fullpath):
        pass

      else:

        return

while it works when directory name starts w/ 'home ', but it gets stuck, try:
      os.system(cmd)
      print ' directory is created successfully' when directory name starts w/ '/hdfs'. Could you please help me to solve this problem?
Thanks

Comments

Seems like some problem with the hdfs path. Could you please the post the path that you are using?