所以,我正在尝试为我拥有的python代码创建一个UI,但不断绊倒问题......
现在,所有代码都是创建一个窗口,有2个texteditor框和一个按钮。按下按钮时,会打印“测试”。
我使用QTDesigner创建UI,然后使用PyQt5将其转换为python,并编辑代码。
我的代码:
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'widget.ui'
#
# Created by: PyQt5 UI code generator 5.9
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Widget(QtGui.QWidget):
def setupUi(self, Widget):
Widget.setObjectName("Widget")
Widget.resize(681, 382)
self.horizontalLayout = QtWidgets.QHBoxLayout(Widget)
self.horizontalLayout.setContentsMargins(11, 11, 11, 11)
self.horizontalLayout.setSpacing(6)
self.horizontalLayout.setObjectName("horizontalLayout")
self.in_box = QtWidgets.QTextEdit(Widget)
self.in_box.setMaximumSize(QtCore.QSize(200, 350))
self.in_box.setObjectName("in_box")
self.horizontalLayout.addWidget(self.in_box)
self.convert = QtWidgets.QPushButton(Widget)
self.convert.setObjectName("convert")
self.horizontalLayout.addWidget(self.convert)
self.gridLayout = QtWidgets.QGridLayout()
self.gridLayout.setContentsMargins(11, 11, 11, 11)
self.gridLayout.setSpacing(6)
self.gridLayout.setObjectName("gridLayout")
self.out_box = QtWidgets.QTextEdit(Widget)
self.out_box.setMaximumSize(QtCore.QSize(200, 350))
self.out_box.setObjectName("out_box")
self.gridLayout.addWidget(self.out_box, 6, 0, 1, 1)
self.horizontalLayout.addLayout(self.gridLayout)
self.retranslateUi(Widget)
QtCore.QMetaObject.connectSlotsByName(Widget)
def retranslateUi(self, Widget):
_translate = QtCore.QCoreApplication.translate
Widget.setWindowTitle(_translate("Widget", "Converter"))
self.convert.setText(_translate("Widget", "Convert"))
self.convert.clicked.connect(self.convertclick)
def convertclick(self):
print ('Test')
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
Widget = QtWidgets.QWidget()
ui = Ui_Widget()
ui.setupUi(Widget)
Widget.show()
sys.exit(app.exec_())
这是我得到的错误:
AttributeError: module 'PyQt5.QtGui' has no attribute 'QWidget'
即使我改变class Ui_Widget(QtGui.QWidget):
到class Ui_Widget(QtGui.QtWidgets):
我得到AttributeError: module 'PyQt5.QtGui' has no attribute 'QtWidgets'
任何知道问题可能是什么的人?
干杯。
答案 0 :(得分:6)
您的错误来自此处:
fread()
它基本上告诉你问题是什么。
看来你正在混合一些QT4和QT5,因为你的导入是QT5风格,但QtGui.QWidget看起来像QT4风格。
将该行替换为:
fwrite()
应根据docs
兼容备注:我不知道你在做什么,但当你提到这一点时:#include <stdio.h>
#define BUFFERSIZE 8192 // 8 kiB
int main(int argc, char **argv)
{
if (argc != 3)
{
fprintf(stderr, "Usage: %s source dest\n", argv[0]);
return 1;
}
FILE *src = fopen(argv[1], "rb");
if (!src)
{
fprintf(stderr, "Error opening %s for reading.\n", argv[1]);
return 1;
}
FILE *dst = fopen(argv[2], "wb");
if (!dst)
{
fclose(src);
fprintf(stderr, "Error opening %s for writing.\n", argv[2]);
return 1;
}
char buf[BUFFERSIZE];
int rc = 1; // <- failure
do
{
size_t nread = fread(buf, 1, BUFFERSIZE, src);
if (nread < BUFFERSIZE)
{
if (ferror(src))
{
fprintf(stderr, "Error reading from %s.\n", argv[1]);
goto done;
}
if (!nread) break;
}
if (fwrite(buf, 1, nread, dst) < nread)
{
fprintf(stderr, "Error writing to %s.\n", argv[2]);
goto done;
}
} while (!feof(src));
rc = 0; // <- success
done:
fclose(dst);
fclose(src);
return rc;
}
这是对的。您已导入QtWidgets,而不是PyQt5.QtGui。只需在那里使用Ui_Widget(QtWidgets)。
简而言之:所有这些错误似乎都与QT4和QT5之间模块的重构有关。文档应该有所帮助。