python for each row in column in dataframe code example

Example 1: for row in column pandas

df = pd.DataFrame([{'c1':10, 'c2':100}, {'c1':11,'c2':110}, {'c1':12,'c2':120}])
for index, row in df.iterrows():
    print(row['c1'], row['c2'])

Example 2: pandas each row?

new_df = df.apply(lambda x: x * 2)