May 2019
Intermediate to advanced
542 pages
13h 37m
English
Content preview from Mastering GUI Programming with Python
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Questions
Try these questions to test your knowledge of this chapter:
- Look at the following table and determine which of the connections could actually be made, and which would result in an error. You may need to look up the signatures of these signals and slots in the documentation:
| # | Signal | Slot |
|---|---|---|
| 1 | QPushButton.clicked | QLineEdit.clear |
| 2 | QComboBox.currentIndexChanged | QListWidget.scrollToItem |
| 3 | QLineEdit.returnPressed | QCalendarWidget.setGridVisible |
| 4 | QLineEdit.textChanged |
QTextEdit.scrollToAnchor |
- The emit() method does not exist on a signal object until the signal has been bound (that is, connected to a slot). Rewrite the CategoryWindow.onSubmit() method from our first calendar_app.py file to protect against the possibility ...
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