"""
#!/home/bigdata/anaconda3/envs/test_dev/bin/python
"""

import random
from timeit import default_timer as timer		  
			  
characters = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYX"

start = timer()

def generateData(size, fileName):
	(l1Range,l2Range,l3Range) = size
	with open("big_data_task_02.dat", 'w') as fileToSaveData:
		for l1 in range(l1Range):
			#print("==> "+str(l1))
			for l2 in range(l2Range):
				sentence = ""
				for l3 in range(l3Range):
					for d in range(random.randint(3,20)):
						#https://stackoverflow.com/questions/12169839/which-is-the-preferred-way-to-concatenate-a-string-in-python
						sentence += random.choice(characters)
					sentence += ','
				fileToSaveData.write(sentence)
		fileToSaveData.write("endOfData")
					
generateData((10000,10,50),"big_data_task_02.dat")

end = timer()
print("Execution time (learn): ", end - start, "s")