#Copy a file in python
shutil.copyfile(sys.argv[0],path)

#Clear a file in python
history = open(os.path.join(home,f),”w”))
history.seek(0)
history.truncate()
history.close()

#Check if a file has been updated in python
while True:
    if stamp != os.stat(log).st_mtime:
        stamp = os.stat(log).st_mtime

#Check if the path is a file
os.path.isfile(fname)
#Check if the path exists
os.path.exists(file_path)