PYQT4不能写入excelwriter

我有一个在pyqt4中创build的gui，它有一个函数来调用一个模块，这个模块应该用pandasexcelwriter写入excel表格。 出于某种原因，它会创build工作表，但不会写入任何内容。 它只是崩溃了我的qui没有任何错误。当我在debugging模式下运行它显然没有任何问题。 这几天我一直在debugging，现在指出了pyqt和excelwriter之间的问题。是否有一个pyqt不喜欢pandasexcelwriter的已知问题？

from PyQt4 import QtCore,QtGui import sys from MAIN_GUI import * if __name__=="__main__": app = Qt.Gui.QApplication(sys.argv) class MAIN_GUI(QtGui.QMainWindow): def __init__self: super(MAIN_GUI, self.__init__: self.uiM=Ui_MainWindow self.uiM.setupUi(self) self.connect(self.uiM.updateALL_Button,QtCore.SIGNAL('clicked()'),self.updateALLEXCEL) def updateALLEXCEL(self): import excel_dummy main_gui = MAIN_GUI() main_gui.show() main_gui.raise_() sys.exit(app.exec_()) 

— excel_dummy.py —

 import pandas as pd from pandas import ExcelWriter def excelify(): with ExcelWriter('/home/Desktop/Excelified/final.xlsx', engine='xlsxwriter') as writer: workbook=writer.book worksheet=workbook.add_worksheet() worksheet.write(2,2,'just write something') writer.save() excelify() 

— MAIN_GUI.py —

 from PyQt4 import QtCore,QtGui try: _fromUtf8 = QtCore.QString.fromUtf8 except AttributeError: def _fromUtf8(s): return s try: _encoding = QtGui.QApplication.unicodeUTF8 def _translate(context, text, disambig): return QtGui.QApplication.translate(context, text, disambig, _encoding) except AttributeError: def _translate(context, text, disambig): return QtGui.QApplication.translate(context, text, disambig) class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName(_fromUtf8("MainWindow")) MainWindow.resize(320,201) self.centralwidget = QtGui.QWidget(MainWindow) self.centralwidget.setObjectName(_fromUtf8("centralwidget")) self.updateALL_Button = QtGui.QPushButton(self.centralwidget) self.updateALL_Button.setGeometry(QtCore.QRect(40,110,161,27)) self.updateALL_Button.setFocusPolicy(QtCore.Qt.NoFocus) self.updateAll_Button.setObjectName(_fromUtf8("Options_updateALL_Button")) MainWindow.setCentralWidget(self.centralwidget) self.menubar = QtGui.QMenuBar(MainWindow) self.menubar.setGeometry(QtCore.QRect(0, 0, 320, 24)) self.menubar.setObjectName(_fromUtf8("menubar")) MainWindow.setMenuBar(self.menubar) self.statusbar = QtGui.QStatusBar(MainWindow) self.statusbar.setObjectName(_fromUtf8("statusbar")) MainWindow.setStatusBar(self.statusbar) self.retranslateUi(MainWindow) QtCore.QMetaObject.connectSlotsByName(MainWindow) def retranslateUi(self,MainWindow): MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None)) self.updateALL_Button.setText(_translate("MainWindow", "updateALL", None)) 

Answer 1

下面的代码适用于我。 也就是说，在我点击updateALLbutton之后，它会打印这个：

 file size: 5259 "/tmp/final.xlsx" 

并查看生成的文件显示这个：

请注意，我必须修复相当多的错误才能使您的示例正常工作。 因此，请确保在testing时使用以下所有文件：

main.py ：

 import sys from MAIN_GUI import * from PyQt4 import QtGui, QtCore if __name__=="__main__": app = QtGui.QApplication(sys.argv) class MAIN_GUI(QtGui.QMainWindow): def __init__(self): super(MAIN_GUI, self).__init__() self.uiM = Ui_MainWindow() self.uiM.setupUi(self) self.connect(self.uiM.updateALL_Button,QtCore.SIGNAL('clicked()'),self.updateALLEXCEL) def updateALLEXCEL(self): try: import excel_dummy except: from traceback import format_exception msg = ''.join(format_exception(*sys.exc_info())) mb = QtGui.QMessageBox() mb.setWindowTitle('Error') mb.setText('Click Show Details to get the Traceback') mb.setDetailedText(msg) mb.exec_() main_gui = MAIN_GUI() main_gui.show() main_gui.raise_() sys.exit(app.exec_()) 

excel_dummy.py ：

 import os, pandas as pd from pandas import ExcelWriter def excelify(): path = '/tmp/final.xlsx' with ExcelWriter(path, engine='xlsxwriter') as writer: workbook = writer.book worksheet = workbook.add_worksheet() worksheet.write(2, 2, 'just write something') writer.save() print('file size: %s "%s"' % (os.stat(path).st_size, path)) excelify() 

MAIN_GUI.py ：

 from PyQt4 import QtCore,QtGui try: _fromUtf8 = QtCore.QString.fromUtf8 except AttributeError: def _fromUtf8(s): return s try: _encoding = QtGui.QApplication.unicodeUTF8 def _translate(context, text, disambig): return QtGui.QApplication.translate(context, text, disambig, _encoding) except AttributeError: def _translate(context, text, disambig): return QtGui.QApplication.translate(context, text, disambig) class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName(_fromUtf8("MainWindow")) MainWindow.resize(320,201) self.centralwidget = QtGui.QWidget(MainWindow) self.centralwidget.setObjectName(_fromUtf8("centralwidget")) self.updateALL_Button = QtGui.QPushButton(self.centralwidget) self.updateALL_Button.setGeometry(QtCore.QRect(40,110,161,27)) self.updateALL_Button.setFocusPolicy(QtCore.Qt.NoFocus) self.updateALL_Button.setObjectName(_fromUtf8("Options_updateALL_Button")) MainWindow.setCentralWidget(self.centralwidget) self.menubar = QtGui.QMenuBar(MainWindow) self.menubar.setGeometry(QtCore.QRect(0, 0, 320, 24)) self.menubar.setObjectName(_fromUtf8("menubar")) MainWindow.setMenuBar(self.menubar) self.statusbar = QtGui.QStatusBar(MainWindow) self.statusbar.setObjectName(_fromUtf8("statusbar")) MainWindow.setStatusBar(self.statusbar) self.retranslateUi(MainWindow) QtCore.QMetaObject.connectSlotsByName(MainWindow) def retranslateUi(self,MainWindow): MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None)) self.updateALL_Button.setText(_translate("MainWindow", "updateALL", None)) 

Answer 2

您的writer.save()语句在with ExcelWriter(...) as writer: block的with ExcelWriter(...) as writer:之外。 尝试使用块内的语句来运行它。

 with ExcelWriter('/home/Desktop/Excelified/final.xlsx', engine='xlsxwriter') as writer: workbook=writer.book worksheet=workbook.add_worksheet() worksheet.write(2,2,'just write something') writer.save()