pandas select first row of dataframe code example

Example 1: pandas return first row

df_test.iloc[0]
or
df_test['someColumnName'].iloc[0]

Example 2: df select first n rows

df2 = df.head(N)
# this should select N rows from top and copy to new df
df3 = df.tail(N)
# this should select N rows from bottom and copy to new df