Mastering GUI Programming with Python

QLineEdit

The QLineEdit class is a single-line text-entry widget that you might commonly use in a data-entry or login form. QLineEdit can be called with no arguments, with only a parent widget, or with a default string value as the first argument, like so:

        line_edit = qtw.QLineEdit('default value', self)

There are also a number of properties we can pass in:

Property	Arguments	Description
text	string	The contents of the box.
readOnly	Boolean	Whether the field can be edited.
clearButtonEnabled	Boolean	Whether a clear button is added.
placeholderText	string	Text that will appear when the field is empty.
maxLength	integer	The maximum number of characters that can be entered.
echoMode	QLineEdit.EchoMode	Switches the way text ...