Clean your mac of desktop and download folder.

CleanDesktopAndDownload.py

import os
import datetime
import shutil

desktop_path = os.environ['HOME'] + "/Desktop/"
downloads_path = os.environ['HOME'] + "/Downloads/"
days = 7
oldF_folder = "old/"

def moveOldFiles(current_path,oldFolder,dasy):
    print(current_path)
    dir = os.listdir(current_path)

    old_folder = os.path.join(current_path ,oldFolder)
    if(os.path.exists(old_folder)):
        None
    else:
        os.mkdir(old_folder)


    today = datetime.date.today()
    minus = datetime.timedelta(days=days)

    deadline = today - minus
    print(deadline)


    for file_name in dir:
        print(file_name)
        target = current_path+file_name
        print(target)

        if os.path.exists(target):
            dt = datetime.datetime.fromtimestamp(os.stat(target).st_mtime)
            key = dt.strftime('%Y/%m/%d  %H:%M:%S')
            print(str(key) + " - " + str(dt))

            if(dt.date()<deadline):
                try:
                    shutil.move(target,old_folder)
                except Exception as e:
                    print(e)
                print("moved")
            else:
                print("keep")
        else:
            print("Can't open " + file_name)

        print("")

if __name__ == '__main__':
    moveOldFiles(downloads_path,oldF_folder,days)

    moveOldFiles(desktop_path,oldF_folder,days)