尝试重命名文件时出现Winerror 123

如何解决尝试重命名文件时出现Winerror 123

我正在尝试编写一个以文件名作为输入的代码。在计算机上找到该文件，然后根据文件的前两行中的文本更改文件名。

import os
filename = input("Enter your file name: ")

def info(filename):
    with open(filename,'r') as filehandle:
        current_line = 1
        for line in filehandle:
            if current_line <=2:
                yield(line)
            current_line += 1
    

info = list(info(filename))
print(info)
path = r'C:\Users\marku\Desktop\INF100'
date = str(info[1])
place = str(info[0])

finalname = date + '_' + place + '.txt'
old = os.path.join(path,filename)
new = os.path.join(path,finalname)

os.rename(old,new)

但是，尝试运行此代码时，我得到了WinError 123。

OSError: [WinError 123] The filename,directory name,or volume label Syntax is incorrect: 
  'C:\\Users\\marku\\Desktop\\INF100\\qwerty.txt' -> 'C:\\Users\\marku\\Desktop\\INF100\\2019-06-01\n_oslo\n.txt'