tKinter: Invalid File Error - file

Question

Whenever I attempt to save using this code:
def openfile(self):
self.filename = askopenfilename(filetypes=(("Extinction Save files", "*.exis"), ("All files", "*.*")))
def save(self):
try:
if not self.filename:
self.filename = asksaveasfile(mode='w', defaultextension=".exis", filetypes=(("Extinction Save files", "*.exis"), ("All files", "*.*")))
# if not '.exis' in self.filename:
# self.filename += ".exis"
self.filename.close()
with open(self.filename, "w") as file:
file.write(self.compiledata)
except Exception as error:
print(str(error))
def saveas(self):
try:
self.filename = asksaveasfile(mode='w', defaultextension=".exis", filetypes=(("Extinction Save files", "*.exis"), ("All files", "*.*")))
# if not '.exis' in self.filename:
# self.filename += ".exis"
self.filename.close()
with open(self.filename, "w") as file:
file.write(self.compiledata)
except Exception as error:
print(str(error))
def compiledata(self):
char = comboBox.currentText()
health = lineEdit_2.text()
level = lineEdit_3.text()
XP = lineEdit_4.text()
inv = []
for index in range(self.listWidget.count()):
inv.append(self.listWidget.item(index))
return char + '\ninv[' + ', '.split(inv) + '\n]' + health + '\n' + level + '\n' + XP
I get the following error message:
invalid file: <_io.TextIOWrapper name='C:/Users/Joan/Desktop/file.exis' mode='w' encoding='cp1252'>
I have seen one instance on this site where someone had a somewhat similar error message, but the solution did not help me. I just don't understand what I am supposed to do at this point.

Answer 1

Because you use asksaveasfile(), self.filename is not a filename, but an opened file. You then use self.filename.close(), so self.filename becomes a closed file, but open(...) expects a filename.
To get a the filename from the file you can use self.filename.name, so:
with open(self.filename.name, "w") as file: