使用字典替换值

Question

正则表达式替换不起作用的原因是什么？我已尝试确保没有多余的空间。

df.column
0    Test_With_Him
1    And_another option with him
2    and_another reason with her

replacement = {'_':' ',Test With': 'test with', 'and another': 'And another& AND'}
df['column'] = df.column.replace('\s+',' ' , regex=True).str.strip().replace(replacement, regex=True)

当我做df.loc[df['column']=="and another reason with her"] 时，什么都没有改变。

Answer 1

请使用df.replace(regex=dict)

df=pd.DataFrame({'test':["Test With Him","And Another option with him",'and another reason with her']})

replacement = {r'Test With': 'test with', r'And Another': 'And another& AND'}

df=df.replace(regex=replacement)

                        test
0                     test with Him
1  And another& AND option with him
2       and another reason with her