Rename column pandas

Rename columns pandas

df.rename(columns={'oldName1': 'newName1',
                   'oldName2': 'newName2'},
          inplace=True, errors='raise')
# Make sure you set inplace to True if you want the change
# to be applied to the dataframe

Rename column pandas

>>> df = pd.DataFrame({"A": [1, 2, 3], "B": [4, 5, 6]})
>>> df.rename(columns={"A": "a", "B": "c"})
   a  c
0  1  4
1  2  5
2  3  6

Source: pandas.pydata.org

Rename column pandas

df_new = df.rename(columns={'A': 'a'}, index={'ONE': 'one'})
print(df_new)
#         a   B   C
# one    11  12  13
# TWO    21  22  23
# THREE  31  32  33

print(df)
#         A   B   C
# ONE    11  12  13
# TWO    21  22  23
# THREE  31  32  33

Source: note.nkmk.me

Rename column pandas

>>> df.rename(index={0: "x", 1: "y", 2: "z"})
   A  B
x  1  4
y  2  5
z  3  6

Source: pandas.pydata.org

Rename column pandas

>>> df.rename({1: 2, 2: 4}, axis='index')
   A  B
0  1  4
2  2  5
4  3  6

Source: pandas.pydata.org

Rename column pandas

>>> df.index
RangeIndex(start=0, stop=3, step=1)
>>> df.rename(index=str).index
Index(['0', '1', '2'], dtype='object')

Source: pandas.pydata.org

Similar codes

41 votes348 views6 answers
Dataframe in python
Python
0 vote278 views1 answer
Pairplot with selected field
Python
25 votes337 views4 answers
Time in python code
Python
15 votes313 views2 answers
Python from timestamp to string
Python
0 vote310 views1 answer
How to apply logarithm in pandas dataframe
Python
0 vote287 views2 answers
Handdle close window action in pyqt5
Python
0 vote271 views1 answer
Rolingmean python
Python
6 votes293 views1 answer
Python append a file and read
Python
0 vote323 views1 answer
Mongodb in python
Python
11 votes270 views3 answers
Python random choice int
Python