Pretty print a nested dictionary into a RichTextCtrl(self)

pretty_print.py

def pretty_print(self, elem, level=0):
    """
    Adds indentation to output of an ElementTree based on depth of element. Recursive.
    """
    # Todo: Write to be compliant with a dictionary
    i = "\r\n" + 2 * level * "  "
    for item in elem:
        (attr, val) = item
        if not type(val) is dict:
            self.BeginBold()
            self.WriteText(i + attr + ": ")
            self.EndBold()
            self.WriteText(val)
        else:
            self.BeginBold()
            self.WriteText(i + attr + ": ")
            self.EndBold()
            self.pretty_print(val.items(), level + 1)