.size pandas code example
Example 1: df length
count_row = df.shape[0] # gives number of row count
count_col = df.shape[1] # gives number of col count
Example 2: df length
total_rows = df.count
print total_rows +1
Example 3: .size pandas
>>> df = pd.DataFrame({'col1': [1, 2], 'col2': [3, 4]})
>>> df.size
4