devinxxxd :
What I am trying to do :
I am trying to save a file using filedialog. The saving part works well but if I click cancel on the dialog box choosing not to save, I get this error. How can this error be removed?
Error I am getting:
Exception in Tkinter callback
FileNotFoundError: [Errno 2] No such file or directory: ''
During handling of the above exception, another exception occurred:
xlsxwriter.exceptions.FileCreateError: [Errno 2] No such file or directory: ''
Below is my code :
import xlsxwriter
import tkinter as tk
import tkinter.ttk as ttk
from tkinter import filedialog
def save():
filename = filedialog.asksaveasfilename(filetypes=[("Excel files", ".xlsx .xls")],defaultextension='.xlsx')
workbook = xlsxwriter.Workbook(filename)
worksheet = workbook.add_worksheet()
worksheet.write('A1', 'Common Information')
worksheet.write('A2', 'Circumference of Tank')
worksheet.write('C2', 'Height of Tank')
worksheet.write('A3', 'Minimum Thickness of Tank')
worksheet.write('C3', 'Maximum Thickness of Tank')
workbook.close()
window = tk.Tk()
window.configure(background='white')
ws = window.winfo_screenwidth()
hs = window.winfo_screenheight()
w = 700 # width for the Tk root
h = 585 # height for the Tk root
x = (ws / 2) - (w / 2)
y = (hs / 2) - (h / 2)
window.geometry('%dx%d+%d+%d' % (w, h, x, y))
canvas = tk.Canvas(window,bg="white",width=700, height=585, highlightthickness=0)
canvas.pack()
save1 = ttk.Button(canvas, text='Save', command= lambda: save())
canvas.create_window(15, 15, window=save1, anchor=tk.NW)
window.resizable(False, False)
window.mainloop()
jizhihaoSAMA :
Your save function will be called after you press the button.
filename = filedialog.asksaveasfilename(filetypes=[("Excel files", ".xlsx .xls")],defaultextension='.xlsx')
....
Because when you stop selecting the path,the filename will be (it is a str type but its length == 0 ).And workbook = xlsxwriter.Workbook(filename) will raise Exception.
So you should use a if statement before you save your xlsx file.
And the save() function should be:
def save():
filename = filedialog.asksaveasfilename(filetypes=[("Excel files", ".xlsx .xls")],defaultextension='.xlsx')
if filename:
workbook = xlsxwriter.Workbook(filename)
worksheet = workbook.add_worksheet()
worksheet.write('A1', 'Common Information')
worksheet.write('A2', 'Circumference of Tank')
worksheet.write('C2', 'Height of Tank')
worksheet.write('A3', 'Minimum Thickness of Tank')
worksheet.write('C3', 'Maximum Thickness of Tank')
workbook.close()
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