Path python ---- get files (in various ways)

# Get the current file to the file folder directory 
ABSPATH = os.path.abspath with (the os.path.realpath (os.path.dirname (__ file__))) 

# obtain a relative path 
FRONTEND = os.path.abspath (os .path.join (ABSPATH, the sys.argv [0])) 
Print ABSPATH 
Print FRONTEND 
     
# obtain a relative path 
print sys.argv [0] 


results:

/Users/lucky/PycharmProjects/lucky_L/test_02
/Users/lucky/PycharmProjects/lucky_L/test_02/test.py
/Users/lucky/PycharmProjects/lucky_L/test_02/test.py