# manuel/buckybase-py

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 import datetime # From watchdog.net def datestr(then, now=None): """ Converts a (UTC) datetime object to a nice string representation. >>> from datetime import datetime, timedelta >>> d = datetime(1970, 5, 1) >>> datestr(d, now=d) '0 microseconds ago' >>> for t, v in { ... timedelta(microseconds=1): '1 microsecond ago', ... timedelta(microseconds=2): '2 microseconds ago', ... -timedelta(microseconds=1): '1 microsecond from now', ... -timedelta(microseconds=2): '2 microseconds from now', ... timedelta(microseconds=2000): '2 milliseconds ago', ... timedelta(seconds=2): '2 seconds ago', ... timedelta(seconds=2*60): '2 minutes ago', ... timedelta(seconds=2*60*60): '2 hours ago', ... timedelta(days=2): '2 days ago', ... }.iteritems(): ... assert datestr(d, now=d+t) == v >>> datestr(datetime(1970, 1, 1), now=d) 'January 1' >>> datestr(datetime(1969, 1, 1), now=d) 'January 1, 1969' >>> datestr(datetime(1970, 6, 1), now=d) 'June 1, 1970' """ def agohence(n, what, divisor=None): if divisor: n = n // divisor out = str(abs(n)) + ' ' + what # '2 day' if abs(n) != 1: out += 's' # '2 days' out += ' ' # '2 days ' if n < 0: out += 'from now' else: out += 'ago' return out # '2 days ago' oneday = 24 * 60 * 60 if not now: now = datetime.datetime.utcnow() if type(now).__name__ == "DateTime": now = datetime.datetime.fromtimestamp(now) if type(then).__name__ == "DateTime": then = datetime.datetime.fromtimestamp(then) delta = now - then deltaseconds = int(delta.days * oneday + delta.seconds + delta.microseconds * 1e-06) deltadays = abs(deltaseconds) // oneday if deltaseconds < 0: deltadays *= -1 # fix for oddity of floor if deltadays: if abs(deltadays) < 4: return agohence(deltadays, 'day') out = then.strftime('%B %e') # e.g. 'June 13' if then.year != now.year or deltadays < 0: out += ', %s' % then.year return out if int(deltaseconds): if abs(deltaseconds) > (60 * 60): return agohence(deltaseconds, 'hour', 60 * 60) elif abs(deltaseconds) > 60: return agohence(deltaseconds, 'minute', 60) else: return agohence(deltaseconds, 'second') deltamicroseconds = delta.microseconds if delta.days: deltamicroseconds = int(delta.microseconds - 1e6) # datetime oddity if abs(deltamicroseconds) > 1000: return agohence(deltamicroseconds, 'millisecond', 1000) return agohence(deltamicroseconds, 'microsecond')