LablTk: getOpenFile

Dialog box to display a directory. The button calls Tk.getOpenFile, which popups a dialog box containing the names of the files in directory specified by the argument initialdir. It returns the name of the file entered by the user, and displays a warning if the user enters the name of a non-existing file.

The file name is usually given to a routine to open the file (open_in).

Here is the dialog box I get when I press "Open File". The default option for initialdir is ".", i.e. the current directory. I can specify the argument defaultextension, which will serve to complete the file name. For instance, specifying ".html" as the default extension, I can enter "basics", and the programme will understand "basics.html" since I have such a file in the directory.