如何解决 FileExistsError: [WinError 183] 当文件已经存在时无法创建文件？

Question

This error has been asked multiple times in this forum and I tried possible solution but I could not resolve the issue. It does rename the file successfully but still annoying because it gives the same error message. Appreciate your input/help on this. Thank you very much.

Error:

    os.rename("Master.xlsx", "Old_Master.xlsx")
    FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'Master.xlsx' -> 'Old_Master.xlsx'

Code:

os.chdir("C:/Path")

for file in os.listdir():
if file.endswith(".xlsx"):
    if os.path.exists("Master.xlsx"):
        os.rename("Master.xlsx", "Old_Master.xlsx")
    os.rename(file, "Master.xlsx")

I got this code from someone here, the answer was deleted. Thanks

Answer 1

You are trying to rename all excel file to the same name, that can not be done. instead try to rename files with some change in names like this.

for count, file in enumerate(os.listdir()):
    if file.endswith(".xlsx"):
        os.rename(file, f"Master{count}.xlsx")