Issues with QMimeData.text()

[Bryce Beagle]

Hi,

I'm trying to implement drag-and-drop behavior in my widget and I'm having
issues with the QMimeData that is provided in the QDropEvent.

When dragging text from some applications (e.g. PyCharm),
event.mimeData().text() always returns an empty string. If I manually use
event.mimeData().data('text/plain'), I get my text just fine, albeit as a
bytes object.

The Qt documentation for QMimeData::text() says that it "Returns a plain
text (MIME type text/plain) representation of the data.", so I feel that if
the 'text/plain' format is defined, this should work fine. For reference,
dragging from PyCharm, event.mimeData().formats returns:

['text/plain', 'text/plain;charset=UTF-16', 'text/plain;charset=UTF-8',
'text/plain;charset=UTF-16BE', 'text/plain;charset=UTF-16LE',
'text/plain;charset=ISO-8859-1', 'text/plain;charset=US-ASCII',
'text/plain;charset=unicode']

Here's an MCVE using PyQt 5.15.0

from PyQt5.QtGui import QDragEnterEvent, QDragMoveEvent, QDropEvent
from PyQt5.QtWidgets import QApplication, QTextEdit


class DragTextEdit(QTextEdit):

    def dragEnterEvent(self, event: QDragEnterEvent):
        event.acceptProposedAction()

    def dragMoveEvent(self, event: QDragMoveEvent):
        event.acceptProposedAction()

    def dropEvent(self, event: QDropEvent):
        data = event.mimeData()
        print("data.text():", data.text())  # Empty string
        print("data.data('text/plain'):", data.data('text/plain'))  # bytes


app = QApplication([])
text_edit = DragTextEdit()
text_edit.show()
app.exec_()
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