using the edit window any time you're in idleyou can open an existing application in an edit window and execute itjust as you have in previous sections of this to perform this taskload the file you saved earlier by choosing fileopen you see an open dialog box that looks similar to the save as dialog box shown in figure - choose the folder containing the application in the look in field and highlight it in the list provided click open to open the file at this pointyou can choose runrun module to run the applicationjust as you would normally using the python shell window or python command line when you're in the idle python shell window or at the python command lineyou're in an environment where you can type commands and see them executed immediately howeveryou need to know the right commands to perform specific tasks in this casethe command is little more complex than the print(command you've been using to date if you want to execute firstappyou need really odd-looking command like one of the two shown hereexec(open(" :\\bp \\\\firstapp py"read()exec(open(" :/bp //firstapp py"read()the preceding two commands are really the same one using different type of slash the command works equally well with forward slashes or backslashes what this command says to do is this open the firstapp py file located in the \bp dfolder on the drive (open(command read the content of this file into the python environment (read(command execute the instructions found in the file after it' loaded (exec(commandit' little early for command like this onebut you'll discover that you can create combined commands of all sorts later in the book for nowjust try the command to see that it works figure - shows typical results