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python sort dataframe by one column Code Example
sorting by column in pandas 
# Python, Pandas
# Sorting dataframe df on the values of a column col1

# Return sorted array without modifying the original one
df.sort_values(by=["col1"]) 

# Sort the original array permanently
df.sort_values(by=["col1"], inplace = True)
df sort values 
>>> df.sort_values(by=['col1'], ascending = False)
    col1 col2 col3
0   A    2    0
1   A    1    1
2   B    9    9
5   C    4    3
4   D    7    2
3   NaN  8    4
Source: pandas.pydata.org
sort by two columns in pandas 
df.sort_values(['a', 'b'], ascending=[True, False])
sort a dataframe by a column valuepython 
>>> df.sort_values(by=['col1'])
    col1 col2 col3
0   A    2    0
1   A    1    1
2   B    9    9
5   C    4    3
4   D    7    2
3   NaN  8    4
Source: pandas.pydata.org
df.sort_values(by='col1',asending=True) 
>>> df.sort_values(by='col1', ascending=False)
  col1  col2  col3 col4
4    D     7     2    e
5    C     4     3    F
2    B     9     9    c
0    A     2     0    a
1    A     1     1    B
3  NaN     8     4    D
Source: pandas.pydata.org
python sort dataframe by one column 
#following is example of sorting by the column "2" in descending order
final_df = df.sort_values(by=['2'], ascending=False)



Python

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