How to set index pandas

# assignment copy
df = df.set_index('month')

# or inplace
df.set_index('month', inplace=True)

#      year   sale  month            month  year   sale
#  0   2012   55    1                1      2012   55
#  1   2014   40    4       =>       4      2014   40
#  2   2013   84    7                7      2013   84
#  3   2014   31    10               10     2014   31

Source: pandas.pydata.org

Similar codes

0 vote133 views1 answer
Add a string to each element of a list python
Python
3 votes133 views3 answers
Python find file name
Python
0 vote236 views1 answer
Merge two query sets django
Python Django
22 votes138 views4 answers
How to create a string in python
Python
4 votes179 views5 answers
Del list python
Python
2 votes211 views1 answer
How to get micro symbol in python
Python
0 vote134 views1 answer
How to save the command result with ! in python
Python
0 vote127 views1 answer
Constructing a Class with __init__ function
Python
0 vote148 views1 answer
Python pyowm
Python
0 vote140 views1 answer
How to check how many Python packages installed
Python