这里有一个我喜欢用来减少打字的漂亮小函数：

def rename(data, oldnames, newname):
    if type(oldnames) == str: # Input can be a string or list of strings
        oldnames = [oldnames] # When renaming multiple columns
        newname = [newname] # Make sure you pass the corresponding list of new names
    i = 0
    for name in oldnames:
        oldvar = [c for c in data.columns if name in c]
        if len(oldvar) == 0:
            raise ValueError("Sorry, couldn't find that column in the dataset")
        if len(oldvar) > 1: # Doesn't have to be an exact match
            print("Found multiple columns that matched " + str(name) + ": ")
            for c in oldvar:
                print(str(oldvar.index(c)) + ": " + str(c))
            ind = input('Please enter the index of the column you would like to rename: ')
            oldvar = oldvar[int(ind)]
        if len(oldvar) == 1:
            oldvar = oldvar[0]
        data = data.rename(columns = {oldvar : newname[i]})
        i += 1
    return data

下面是一个如何工作的示例：

In [2]: df = pd.DataFrame(np.random.randint(0, 10, size=(10, 4)), columns = ['col1', 'col2', 'omg', 'idk'])
# First list = existing variables
# Second list = new names for those variables
In [3]: df = rename(df, ['col', 'omg'],['first', 'ohmy'])
Found multiple columns that matched col:
0: col1
1: col2

Please enter the index of the column you would like to rename: 0

In [4]: df.columns
Out[5]: Index(['first', 'col2', 'ohmy', 'idk'], dtype='object')

您可以使用str.slice：

df.columns = df.columns.str.slice(1)

# This way it will work
import pandas as pd

# Define a dictionary 
rankings = {'test': ['a'],
        'odi': ['E'],
        't20': ['P']}

# Convert the dictionary into DataFrame
rankings_pd = pd.DataFrame(rankings)

# Before renaming the columns
print(rankings_pd)

rankings_pd.rename(columns = {'test':'TEST'}, inplace = True)

一个简单而“有趣”（和蟒蛇？）的解决方案：

df.rename(columns={x: x.replace('$', '') for x in df.columns})

哪里：

df = pd.DataFrame(columns=['$a', '$b', '$c', '$d', '$e'])

步骤：

获取DataFrame的列作为列表：

df.columns

在DataFrames中重命名的方法：

df.rename()

属性以指定要重命名列：

columns={}

在字典中，您需要指定要重命名的列（在每个键中）以及它们将获得的新名称（每个值）

{'old_col_name': 'new_col_name', ...}

由于您的更改遵循一种模式，为了删除每列中的$字符，我们可以使用字典理解：

{x: x.replace('$', '') for x in df.columns}

假设您可以使用正则表达式，则此解决方案无需使用正则表达式进行手动编码：

import pandas as pd
import re

srch = re.compile(r"\w+")

data = pd.read_csv("CSV_FILE.csv")
cols = data.columns
new_cols = list(map(lambda v:v.group(), (list(map(srch.search, cols)))))
data.columns = new_cols

如果已经有新列名的列表，可以尝试以下操作：

new_cols = ['a', 'b', 'c', 'd', 'e']
new_names_map = {df.columns[i]:new_cols[i] for i in range(len(new_cols))}

df.rename(new_names_map, axis=1, inplace=True)