Shuffle two file names and copy the active file to a destination folder.

fileshuffle.py

#!/bin/python3

import os
import sys
from shutil import copyfile

def getScriptPath():
	"""
	Returns the full directory path of this script.
	"""
	return sys.path[0]


FILE_ACTIVE = "{0}/file.xml".format(getScriptPath())
FILE1_INACTIVE = "{0}/file1.xml".format(getScriptPath())
FILE2_INACTIVE = "{0}/file2.xml".format(getScriptPath())
FILE_PATH_ACTIVE = "/tmp/file.xml"

class FileNotFoundException(Exception):
    pass


def shuffleFileNames():
	"""
	Shuffles the names of two files.
	Initially there must be two files 
	matching FILE_ACTIVE and 
	FILE1_INACTIVE or FILE2_INACTIVE.
	"""
	if os.path.isfile(FILE_ACTIVE) and os.path.isfile(FILE2_INACTIVE):
		print(f"Renaming {FILE_ACTIVE} -> {FILE1_INACTIVE}")
		os.rename(FILE_ACTIVE, FILE1_INACTIVE)
		print(f"Renaming {FILE2_INACTIVE} -> {FILE_ACTIVE}")
		os.rename(FILE2_INACTIVE, FILE_ACTIVE)

	elif os.path.isfile(FILE_ACTIVE) and os.path.isfile(FILE1_INACTIVE):
		print(f"Renaming {FILE_ACTIVE} -> {FILE2_INACTIVE}")
		os.rename(FILE_ACTIVE, FILE2_INACTIVE)
		print(f"Renaming {FILE1_INACTIVE} -> {FILE_ACTIVE}")
		os.rename(FILE1_INACTIVE, FILE_ACTIVE)
	else:
		raise "File(s) not found."

def copyFile():
	"""
	Copies a file to a destination folder.
	"""
	if not os.path.isfile(FILE_ACTIVE):
		raise FileNotFoundException(f"File {FILE_ACTIVE} not found.")
	if not os.path.isfile(FILE_PATH_ACTIVE):
		raise FileNotFoundException(f"File path {FILE_PATH_ACTIVE} not found.")
	print(f"Coping {FILE_ACTIVE} -> {FILE_PATH_ACTIVE}")
	copyfile(FILE_ACTIVE, FILE_PATH_ACTIVE)


shuffleFileNames()
copyFile()