保存文件时如何解决错误

Question

在保存文件时如何解决错误？我在下面给出代码

df12.to_csv("C:\python\catboost\xt.csv", encoding = 'cp1251', sep = ';')

File "<ipython-input-58-d3c2f3860970>", line 2
    df12.to_csv("C:\python\catboost\xt.csv", encoding = 'cp1251', sep = ';')
               ^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 18-19: truncated \xXX escape