getSaveFileName，getOpenFileName向我显示要保存或打开的文件，但无法保存该文件或在python QT中打开该文件

Question

1.fileName = QtGui.QFileDialog.getOpenFileName(self, "Open File",
                        "F:/python/bc_new_latest/bcForecasting.csv",
                        "Excel (*.csv *.xls )");

2.fileName = QtGui.QFileDialog.getSaveFileName(self, "Save",
                        "F:/python/bc_new_latest/bcForecasting.csv",
                        "Excel (*.csv *.xls )");

The above 2 codes shows me file dialog's to open me the file in specified location or save the file. But can not open the file or save the file in different location. What code I have to add here. Thanks in advance

Answer 1

These functions only allow the user to select files, they don't actually open or save the files.

In PySide, they return a tuple, so for example, saving the file would look like this:

fileName, selectedFilter = QtGui.QFileDialog.getSaveFileName(self, "Save",
                    "F:/python/bc_new_latest/bcForecasting.csv",
                    "Excel (*.csv *.xls )")
if fileName:
   with open(fileName, "w") as file:
       file.write(theCSVContent)