QKeySequence PySide和PySide2之间的差异

因为我目前正在将Python 2.7.14 / PySide 1.2.4中的gui应用程序移植到Python 3.7.1 / PySide2 5.11.2我遇到了一些快捷机制的问题 . 进一步来说：

与PySide相比，PySide2中的

• QKeySequence instantiation似乎返回了不同/令人惊讶的结果 .

• Qt.Key_* 枚举上的 + 运算符似乎没有返回预期结果 . 例如 QKeySequence(Qt.SHIFT + Qt.CTRL + Qt.Key_Z) 似乎无法正常工作 .

• 当使用字符串代码实例化 QKeySequences 时，它起作用，例如 QKeySequence("Shift+Ctrl+Z") 似乎有效 .

• QKeySequence.StandardKey 实例化如 QKeySequence(QKeySequence.Redo) 只是在PySide2中崩溃 .

这些已知的错误？预期用途有什么变化吗？我错过了something in the docs吗？

Win7x64 / Python 3.7.1 / PySide2 5.11.2（失效/崩溃）

# -*- coding: utf-8 -*-
"""Test QKeySequence equality/matching in PySide2."""
from PySide2.QtCore import Qt
from PySide2.QtGui import QKeySequence

sequence_a = QKeySequence("Shift+Ctrl+Z")
sequence_b = QKeySequence(Qt.SHIFT + Qt.CTRL + Qt.Key_Z)

# string representation
print(sequence_a.toString())
print(sequence_b.toString())

print("-"*20)

# equality/matching
print(sequence_a.matches(sequence_b))
print(sequence_a == sequence_b)

print("-"*20)

# this causes a crash in PySide2 (Process finished with exit code -1073741819 (0xC0000005))
print(QKeySequence(QKeySequence.Redo))

# Ctrl+Shift+Z
# [
# --------------------
# PySide2.QtGui.QKeySequence.SequenceMatch.NoMatch
# False
# --------------------
# Process finished with exit code -1073741819 (0xC0000005)

Win7x64 / Python 2.7.14 / PySide 1.2.4（正常工作）

# -*- coding: utf-8 -*-
"""Test QKeySequence equality/matching in PySide."""
from PySide.QtCore import Qt
from PySide.QtGui import QKeySequence

sequence_a = QKeySequence("Shift+Ctrl+Z")
sequence_b = QKeySequence(Qt.SHIFT + Qt.CTRL + Qt.Key_Z)

# string representation
print(sequence_a.toString())
print(sequence_b.toString())

print("-"*20)

# equality/matching
print(sequence_a.matches(sequence_b))
print(sequence_a == sequence_b)

print("-"*20)

# this works in PySide
print(QKeySequence(QKeySequence.Redo))

# Ctrl+Shift+Z
# Ctrl+Shift+Z
# --------------------
# PySide.QtGui.QKeySequence.SequenceMatch.ExactMatch
# True
# --------------------
# PySide.QtGui.QKeySequence(67108953, 0, 0, 0)