import shutil
def backup():
        p = input('PATH1')
        p2 = input('PATH2')
        name = input('Name')
        cop = p2 + name + '.txt'
        file = open(cop,'r+')
        file2 = open(str(p),'r+')
        shutil.copy(p,cop)
        file.close()
        file2.close()
backup()
C:\Users\Сергей\Desktop\Новый текстовый документ.txt
‪C:\Users\Сергей\Desktop\
sdf
Traceback (most recent call last):
  File "<pyshell#28>", line 1, in <module>
    backup()
  File "<pyshell#27>", line 6, in backup
    file = open(cop,'r+')
OSError: [Errno 22] Invalid argument: '\u202aC:\\Users\\Сергей\\Desktop\\sdf.txt'