File size: 1,391 Bytes
ae4627d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | """ Planning module.
"""
from datetime import datetime
from time import sleep
def from_parse_datetimes(ts_fmt, ts_col, event_list):
"""
Returns a planning list by parsing datetimes in event_list[:][ts_col] to datetime using ts_fmt
Returns a new list of rows (lists) where
first column is the parsed datetime, the rest is the original row
"""
return [[datetime.strptime(evt[ts_col], ts_fmt)] + evt for evt in event_list]
def is_valid(planning):
"""Validates planning, returns True on valid list.
- planning is expected to: be a parsed planning (see self.parse)
events in planning must be sorted by date from old to new.
"""
if not isinstance(planning, list):
return False
if len(planning) < 2:
return False
# datetimes must be sorted by date from old to new.
previous_ts = planning[0][0]
for row in planning[1:]:
curr_ts = row[0]
if curr_ts < previous_ts:
return False
return True
def start(planning, callback):
"""Starts calling back self.callback following the timeline specified by event_list.
event_list is expected to be valid
"""
previous_ts = planning[0][0]
for row in planning:
curr_ts = row[0]
increment = (curr_ts - previous_ts).seconds
sleep(increment)
callback(*row[1:])
previous_ts = curr_ts
|