Small ape circle python learning - system calls sys module

sys.argv command line parameters List, the first element of the program itself is the path
sys.exit (n) to exit the program, when the normal exit Exit (0)
sys.version Version Get Python interpreter
sys.maxint largest Int value
sys .path return path search module, using initialization value of environment variable PYTHONPATH
sys.platform returns the operating system platform name
sys.stdout.write ( 'please:') # standard output lead-out example of the progress bar, note, on py3 not, may be used instead of print
val = sys.stdin.readline () [: - 1] # standard input
sys.getrecursionlimit () # Get the maximum recursion layers
sys.setrecursionlimit (1200) # set the maximum recursion layers
sys.getdefaultencoding ( ) # get the interpreter default encoding
sys.getfilesystemencoding # get stored memory data to a file in the default encoding