panda dataframe get row code example

Example 1: pandas get row from column value

df.loc[df['column_name'] == some_value]

Example 2: how to get a row from a dataframe in python

df.iloc[[index]]

Example 3: isolate row based on index pandas

dfObj.iloc[: , [0, 2]]

Example 4: add an index column in range dataframe

df = df.loc[df.index.repeat(df['a'])]   
df['c'] = df.groupby(level=0).cumcount() + 1
df = df.reset_index(drop=True)
print (df)
   a  b  c
0  1  x  1
1  2  y  1
2  2  y  2
3  3  z  1
4  3  z  2
5  3  z  3