* Fix
Error "IndexError: list index out of range" occurs when there is no "predefined_classes.txt".
* Fix an error when default label is null.
Error "IndexError: list index out of range" occurs when there is no "/data/predefined_classes.txt".
* Update README.rst
ADD: Package as a separate exe file method.
* Fixed an error after opening a file to cancel
The cause of the error:
QFileDialog.getOpenFileName(...) second parameter required cannot be empty.
* Fix
Error "IndexError: list index out of range" occurs when there is no "predefined_classes.txt".
* Fix an error when default label is null.
Error "IndexError: list index out of range" occurs when there is no "/data/predefined_classes.txt".
* Update README.rst
ADD: Package as a separate exe file method.