today.py

#!/usr/bin/env python
# vim: set fileencoding=utf-8> :
# See http://rhodesmill.org/pyephem/rise-set.html
import datetime
import collections

import ephem
from az2dir import az2compass16
from astro_unicode import to_unicode

import config
import poi

parser = config.location_parser
parser.description = 'List the times for solar, lunar, and planetary events today.'
parser.add_argument('-s', '--sleep', nargs='?', const=config.default_sleep_time, type=float, help='Hours of sleep desired each night (default is %.4g)' % config.default_sleep_time)
args = parser.parse_args()

location = config.get_location_from_namespace(args)
if args.sleep:
    sleep_time = args.sleep * ephem.hour
else:
    sleep_time = False

print 'It is %s in %s' % (config.time_conversion(location.date).strftime('%c'),
        location.name)
print

bodies = poi.bodies(location)

print "Up right now"
for name, body in bodies.iteritems():
    if body.alt > 0:
        if hasattr(body, 'phase'):
            print u'%s %-7s: %11s, %3s in %6s phase %6.2f%%' % \
                    (to_unicode(name) or ' ',
                     name,
                     str(body.alt).replace(':', u'°', 1).replace(':', "'", 1).replace(':', '"', 1),
                     az2compass16(body.az),
                     ephem.constellation(body)[1],
                     body.phase)
        else:
            print u'%s %-7s: %11s, %3s in %6s' % \
                    (to_unicode(name) or ' ',
                     name,
                     str(body.alt).replace(':', u'°', 1).replace(':', "'", 1).replace(':', '"', 1),
                     az2compass16(body.az),
                     ephem.constellation(body)[1])

print

print "Happening Today"
start  = location.date
events = {}
for name, body in bodies.iteritems():
    try:
        events[(name, 'rise')] = location.next_rising(body)
    except (ephem.AlwaysUpError, ephem.NeverUpError):
        pass
    try:
        events[(name, 'set')] = location.next_setting(body)
    except (ephem.AlwaysUpError, ephem.NeverUpError):
        pass
    try:
        transit_time = body.transit_time
        # This returns a None sometimes, instead of the errors
        if transit_time:
            events[(name, 'transit')] = transit_time
    except (ephem.AlwaysUpError, ephem.NeverUpError):
        pass

# Twilights
location.pressure = 0
twilights = (("Astro", '-18'), ("Nautical", '-12'), ('Civil', '-6'))
for t in twilights:
    location.horizon = t[1]
    events[(t[0], 'dawn')] = location.next_rising(bodies['Sun'], use_center=True) 
    events[(t[0], 'dusk')] = location.next_setting(bodies['Sun'], use_center=True) 

if sleep_time:
    events[('Bedtime', '%s hr' % args.sleep)] = events[('Sun', 'rise')] - sleep_time

tomorrow = config.time_conversion(start) + datetime.timedelta(days=1)
events[(tomorrow.strftime('%b %d'), '')] = config.localtime_to_ephem(datetime.datetime(year=tomorrow.year, month=tomorrow.month, day=tomorrow.day))

o_events = collections.OrderedDict(sorted(events.items(), key=lambda t: t[1]))
for what, when in o_events.iteritems():
    if when - start > 1:
        break
    print '%-10s %-7s %s' % (what[0], what[1], config.time_conversion(when).strftime('%X'))