删除“熊猫”列中所有大于一的空格

Question

我有这段适用于字符串的代码，但需要将其应用于pandas列。有什么想法吗？

foo = "hey     how are \n you doing today?"
foo = " ".join(foo.split())

输出：

print(foo)
hey how are you doing today?

如何将其应用于大熊猫中的整列文字？

Answer 1

您可以使用str.replace

df = pd.DataFrame({'col':['how  are you?', 'This is a good   example']})
df['col'] = df['col'].str.replace('\s{2,}', ' ')


    col
0   how are you?
1   This is a good example

Answer 2

str.replace是必经之路：

 df['col'] = df['col'].str.replace('\s+', ' ')