Change Column Order when Saving pandas DataFrame as CSV in Python (Example Code)

import pandas as pd                                        # Import pandas library

import pandas as pd # Import pandas library

my_df = pd.DataFrame({'C':range(20, 25),                   # Construct pandas DataFrame in Python
                      'B':['x', 'y', 'y', 'x', 'y'],
                      'D':['a', 's', 'd', 'f', 'g'],
                      'A':range(15, 10, - 1)})
print(my_df)
#     C  B  D   A
# 0  20  x  a  15
# 1  21  y  s  14
# 2  22  y  d  13
# 3  23  x  f  12
# 4  24  y  g  11

my_df = pd.DataFrame({'C':range(20, 25), # Construct pandas DataFrame in Python 'B':['x', 'y', 'y', 'x', 'y'], 'D':['a', 's', 'd', 'f', 'g'], 'A':range(15, 10, - 1)}) print(my_df) # C B D A # 0 20 x a 15 # 1 21 y s 14 # 2 22 y d 13 # 3 23 x f 12 # 4 24 y g 11

my_df.to_csv('my_df.csv', columns = ['A', 'B', 'C', 'D'])  # Change order of variables
#     A  B   C  D
# 0  15  x  20  a
# 1  14  y  21  s
# 2  13  y  22  d
# 3  12  x  23  f
# 4  11  y  24  g

my_df.to_csv('my_df.csv', columns = ['A', 'B', 'C', 'D']) # Change order of variables # A B C D # 0 15 x 20 a # 1 14 y 21 s # 2 13 y 22 d # 3 12 x 23 f # 4 11 y 24 g