将r与包含希腊字母的字符串arg串联

Question

正如下面的示例所示，我想将r与包含希腊字母的字符串参数连接起来，以避免unicode错误

book = xlrd.open_workbook(r'C:\a_directory_with_greek_letters_inside.xlxs')

但是在此代码中，该函数未按我期望的那样连接r和字符串：

url='C:\a_directory_with_greek_letters_inside.xlxs'

def fnc(arg):
   book = xlrd.open_workbook(r+arg))
   return book

fnc(url)

我该如何解决？

Answer 1

不确定您要避免的Unicode错误，但是您可以这样做：

rf'{arg}'

赞：
url='C:\a_directory_with_greek_letters_inside.xlxs'

def fnc(arg):
   book = xlrd.open_workbook(rf'{arg}')
   return book

fnc(url)