Filehandling

#!/usr/bin/env python
import sys,os
from time import *
# This is my second pythonscript.
# Its intention is to get used to fileaccess.
# This program doesn't serve a certain purpose.
# @author: [email protected]
 
def launch():
    print "Current working Directory: ", os.getcwd()
    print "Contents: ", os.listdir(os.getcwd())
    #chdir('foldername')    change into folder "foldername"
    #mkdir('name')    create folder "name"
    #mkdirs('name/subname/subsubname')  
    #rmdir('name') removes if empty
    print "Operating System: ", os.name
    print "Current directory: ", os.curdir
    print "Parent directory: ", os.pardir 
    #path.isdir('path')   true if path is directory
    #path.isfile('filename')    true if filename is file
    #path.exists('path')  true if exists
    filehandle = file('test.dat', 'w+')
    #modi: r,w,a,r+,w+,a+,
    #modi: rb,wb,ab (binary) rU, aU (Universal Newline n)
    #filehandle.read()    read everything from filehandle
    #filehandle.readline()    read one line
    #filehandle.readlines()   read everything linewisely
    #filehandle.close()    close file handle
    #filehandle.write()    write string to file handle
    #filehandle.writelines() 
    filehandle.write("test")
    filehandle.close()
    #remove('filename')    removes file
    #rename('filename_orig', 'filename_new')
    #filehandle.mode    gets mod (rwx)
    #filehandle.closed    true if closed
    #Utility-Funktionen
    #seek(int)    set filepointer position
    #tell()    get filepointer position
#Aufruf
launch()