PyQt5 QLineEditor help!!!

[Souvik Dutta]

Hi guys I just started to learn PyQt5 and was wondering if like kivy we can
delete the text in a textbox after taking the input. That is I want to make
the textbox blank after the text is read. Also can you suggest a way to
connect a cancel button with a function so that when the cancel button is
clicked it exists a window. Tank you in advance.
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