Generate time stamp interval for CSV dummy data

timestamp.py

"""
Common dummy data generation scripts
"""

from random import randint
from datetime import datetime as dt
from datetime import timedelta

start_times = []
end_times = []


def duration_generator(duration, nrows, from_date, timestamp_fmt='%Y-%m-%d %H:%M:%S', rest=timedelta(minutes=0)):
    if nrows == 0:
        return
    start_time = dt.strptime(from_date, timestamp_fmt) + rest
    end_time = start_time + timedelta(minutes=duration)
    start_time_str = dt.strftime(start_time, timestamp_fmt)
    end_time_str = dt.strftime(end_time, timestamp_fmt)
    start_times.append(start_time_str)
    end_times.append(end_time_str)
    duration_generator(randint(1, 2*60), nrows - 1, end_time_str, timestamp_fmt, timedelta(minutes=30, days=randint(0, 2)))


duration_generator(duration=randint(1, 2*60),
                   nrows=500,
                   from_date='2016-01-01 00:00:00')