try except is not working while using hdfs command

0 votes

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                                       
  Inspired by: http://stackoverflow.com/a/600612 

  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

Mar 6, 2019 in Python by anonymous
933 views
Seems like some problem with the hdfs path. Could you please the post the path that you are using?

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