Reorder Columns in Pandas

Use double brackets to reorder columns in a DataFrame

Use the syntax DataFrame[["column1", "column2", "column3"]] with the column names in the desired order to reorder the columns.

print(df)

Output:

   A  B  C
0  1  4  7
1  2  5  8
2  3  6  9

df = df[["C", "A", "B"]]
print(df)

Output:

   C  A  B
0  7  1  4
1  8  2  5
2  9  3  6

Use pandas.DataFrame.reindex() to reorder columns in a DataFrame

Call pandas.DataFrame.reindex(columns=column_names) with a list of the column names in the desired order as column_names to reorder the columns.

print(df)

Output:

   A  B  C
0  1  4  7
1  2  5  8
2  3  6  9

column_names = ["C", "A", "B"]
df = df.reindex(columns=column_names)
print(df)

Output:

   C  A  B
0  7  1  4
1  8  2  5
2  9  3  6