import random
import string
import numpy as np
import pandas as pd
np.random.seed = 42

def get_random_string(length):
    letters = string.ascii_lowercase
    return ''.join(random.choice(letters) for i in range(length))

df_size = 5_000_000

df = pd.DataFrame({
    'num_1': np.random.rand(df_size),
    'num_2': np.random.rand(df_size),
    'num_3': np.random.rand(df_size),
    'num_4': np.random.rand(df_size),
    'num_5': np.random.rand(df_size),
    'str_1': [get_random_string(length=32) for x in range(df_size)],
    'str_2': [get_random_string(length=128) for x in range(df_size)]
})