在用空格替换标点符号时出现类型错误

Question

# Remove file extension and leading digits
file = filename.split('.')[0].lstrip(string.digits)
# Replace punctuation characters with underscores
# t = {ord(i) : '_' for i in string.punctuation}
file = file.translate(t)

对于上面的代码，我收到如下错误：

file = file.translate(t)
TypeError: expected a character buffer object

但它表明 t 应该是字符缓冲区 object。

Answer 1

您可以使用string.maketrans()创建映射表。

table = file.maketrans(string.punctuation, '_' * len(string.punctuation))
file = file.translate(table)

Answer 2

用这个：

t = {ord(i) : ord('_') for i in string.punctuation}
file = file.translate(t)