保存pdf时提示用户选择名称和位置(python)

Question

我如何更改我的代码，以便我可以保存我的最终pdf (MergedFiles.pdf)与用户选择的名称，并在他们选择的位置。我想要一个弹出窗口(也许是tkinter?)这将为用户提供选择名称和位置以保存pdf文件的选项。

import PyPDF2 
 
# Open the files that have to be merged one by one
pdf1File = open(filepath, 'rb')
pdf2File = open('Summary_output.pdf', 'rb')
 
# Read the files that you have opened
pdf1Reader = PyPDF2.PdfFileReader(pdf1File)
pdf2Reader = PyPDF2.PdfFileReader(pdf2File)
 
# Create a new PdfFileWriter object which represents a blank PDF document
pdfWriter = PyPDF2.PdfFileWriter()

# Loop through all the pagenumbers for the first document
for pageNum in range(pdf1Reader.numPages):
    pageObj = pdf1Reader.getPage(pageNum)
    pdfWriter.addPage(pageObj)
 
# Loop through all the pagenumbers for the second document
for pageNum in range(pdf2Reader.numPages):
    pageObj = pdf2Reader.getPage(pageNum)
    pdfWriter.addPage(pageObj)
 
# Now that you have copied all the pages in both the documents, write them into the a new document
pdfOutputFile = open('MergedFiles.pdf', 'wb')
pdfWriter.write(pdfOutputFile)
 
# Close all the files - Created as well as opened
pdfOutputFile.close()
pdf1File.close()
pdf2File.close()

Answer 1

你可以用一个tkinter filedialog来做这件事。

root = tk.Tk()
root.withdraw()

pdfPath = filedialog.asksaveasfilename(defaultextension = "*.pdf", filetypes = (("PDF Files", "*.pdf"),))
if pdfPath: #If the user didn't close the dialog window
    pdfOutputFile = open(pdfPath, 'wb')
    pdfWriter.write(pdfOutputFile)
    pdfOutputFile.close()
    pdf1File.close()
    pdf2File.close()

首先，它创建并隐藏了一个tkinter窗口。如果您没有这样做，当您启动文件对话框时，将出现一个空窗口。然后，它使用filedialog.asksaveasfilename启动本机OS文件对话框。我已经指定它应该只请求PDF文件。然后if语句检查是否返回了路径，如果有，则遵循与前面相同的过程。