example

# -*- python -*-
# See LICENSE file for copyright and license details.

import time, pwd
from latex import *
from gnupg import *
from fortune import *
from events import *
from wotd import *
from leapsec import *
from solar import *
from summertime import *
from xkcd import *

doc  = documentclass('memoir', '11pt', 'oneside', 'a4paper')
doc += fontencoding('T1')
doc += usepackage('inputenc', 'utf8')
doc += usepackage('xcolor')
doc += usepackage('geometry', margin = '1in')
doc += usepackage('microtype')
doc += usepackage('graphicx')
doc += usepackage('adjustbox', 'export')
doc += usepackage('ulem', 'normalem')

doc += pagestyle('empty')

doc += '\\newcommand{\\whiteonblack}[1]{\\colorbox{black}{\\textcolor{white}{#1}}}\n'
def whiteonblack(text, end = ''):
    return '\\whiteonblack{%s}%s' % (text, end)

doc += begin('document')

prologue = doc
def standalonetest(content):
    content = prologue + content + '\n' + end('document')
    with open('stand-alone-test.tex', 'wb') as file:
        file.write(content.encode('utf-8'))
        file.flush()
    try:
        spawn('pdflatex', '-halt-on-error', '--', 'stand-alone-test.tex')
    except:
        return False
    return True


# (prologue)
now = time.localtime()

holidays = filter_events(swedish_holidays(), 30) # include for the next 30 days
if holidays is None:
    holidays = []

holiday_today    = 2 if now.tm_wday == 6 else (1 if len([x for _, x, __ in holidays if x == 0]) > 0 else 0)
holiday_tomorrow = 2 if now.tm_wday == 5 else (1 if len([x for _, x, __ in holidays if x == 1]) > 0 else 0)
holiday_str = ('don\'t think so', 'believe so', 'yes')


## Title
doc += begin('center')
doc += Huge('Report of the day, %s' % time.strftime('%Y-(%m)%b-%d', now))
doc += end('center')


## Misc.
doc += '\n\n'
doc += '\\hspace*{-2em}'
doc += begin('tabular', 'll')
doc += ln(bf('Week:', ' & ' + time.strftime('%V', now)))
doc += ln(bf('Weekday:', ' & ' + time.strftime('%A', now)))
doc += ln(bf('Holiday today?', ' & ' + holiday_str[holiday_today]))
doc += ln(bf('Holiday tomorrow?', ' & ' + holiday_str[holiday_tomorrow]))
doc += end('tabular')
doc += '\n\n'


## GnuPG key-expiry
keys = gnupg_expiry() # for 60 days: gnupg_expiry(60)
if keys is not None and len(keys) > 0:
    doc += sectionx(whiteonblack('GnuPG key-expiry'))
    for key, days in keys:
        text = '%s will expire in %i days' % (tt(key, ''), days)
        if days <= 5:
            text = '\\textcolor{red!75!black}{%s}' % text
        doc += ln(text)
    doc += '\n\n'


## Today's/Upcoming events, include switch from or to summer time
events = holidays
events += filter_events([('John Doe\'s birthday', '07-01')], 30) # first of july, warn 30 days before
events += filter_events(swedish_events())
events += filter_events(leap_seconds_to_strings(leap_seconds(), include_desc = True))
summer_time, date = is_summer_time()
for i in range(30):
    (summer_time_then, date) = is_summer_time(i + 1)
    if summer_time_then != summer_time:
        tz = 'summer time' if summer_time_then else 'standard time'
        events.append(('Switch to %s' % tz, i + 1, date))
        break
events.sort(key = lambda x : x[1])
today  = [e for e in events if e[1] == 0]
events = [e for e in events if e[1] > 0]
if len(today) > 0:
    doc += sectionx(whiteonblack('Today\'s events'))
    for event in today:
        doc += ln(event[0])
if len(events) > 0:
    doc += sectionx(whiteonblack('Upcoming events'))
    for event, days, date in events:
        unit = 'day' if days == 1 else 'days'
        date = time.strftime('%Y-%m-%d', date)
        text = 'In %i %s: %s (%s)' % (days, unit, event, date)
        if days <= 5:
            text = '\\textcolor{red!75!black}{%s}' % text
        doc += ln(text)


## Fortune of the day
quote_tries = 100
while quote_tries > 0:
    quote, quote_tries = fortune(max_tries = quote_tries)
    if quote is not None:
        quote = begin('verbatim') + quote + '\n' + end('verbatim')
        if not standalonetest(quote):
            continue
        doc += sectionx(whiteonblack('Fortune of the day'))
        doc += quote
        doc += '\n\n'
    break


## Word of the day
have_wotd = False
wday = time.localtime().tm_wday
for lang, wdays in [('en', None), ('sv', [0, 1])]:
    if wdays is not None and wday not in wdays:
        continue
    word = wotd(lang = lang)
    if word is not None:
        if standalonetest(word):
            if not have_wotd:
                doc += sectionx(whiteonblack('Word of the day'))
                have_wotd = True
            doc += '\\noindent\n'
            doc += word
            doc += '\n\n'


## Solar events
try:
    sol = Solar()
except:
    sol = None
if sol is not None:
    doc += sectionx(whiteonblack('Solar events'))
    doc += '\\hspace*{-0.6em}'
    doc += begin('tabular', 'llll')
    doc += ln(bf('Summer or winter: ', ' & %s & &' % sol.season()))
    doc += ln(bf('Next equinox: ',     ' & %s & &' % sol.next_equinox()))
    doc += ln(bf('Next solstice: ',    ' & %s & &' % sol.next_solstice()))
    elevs = ['Astronomical dawn', 'Nautical dawn', 'Civil dawn', 'Sunrise', 'Solar noon',
             'Sunset', 'Civil dusk', 'Nautical dusk', 'Astronomical dusk']
    n = lambda x : '—' if x is None else x
    today, tomorrow = sol.elevations(0), sol.elevations(1)
    for elev, today, tomorrow, length in zip(elevs, today, tomorrow, sol.lengths(today, tomorrow)):
        doc += ln(bf('%s: ' % elev, ' & %s & %s & %s' % (n(today), n(tomorrow), length)))
    gold = sol.golden_hour(0)
    n = lambda x : '—' if x is None else x.split(' ')[1]
    doc += ln(bf('Morning golden hour: ', ' & %s–%s & %s &' % (n(gold[0]), n(gold[1]), gold[2])))
    doc += ln(bf('Evening golden hour: ', ' & %s–%s & %s &' % (n(gold[3]), n(gold[4]), gold[5])))
    blue = sol.blue_hour(0)
    doc += ln(bf('Morning blue hour: ', ' & %s–%s & %s &' % (n(blue[0]), n(blue[1]), blue[2])))
    doc += ln(bf('Evening blue hour: ', ' & %s–%s & %s &' % (n(blue[3]), n(blue[4]), blue[5])))
    doc += end('tabular')
    doc += '\n\n'



## xkcd
try:
    (last, img, title, text) = xkcd()
    state = pwd.getpwuid(os.getuid()).pw_dir + '/.var/lib/rotd'
    try:
        os.makedirs(state)
    except FileExistsError:
        pass
    state += '/xkcd'
    if os.path.exists(state):
        with open(state, 'rb') as file:
            have = file.read()
        have = eval(have.decode('utf-8', 'strict'))
    else:
        have = set()
    if last not in have:
        index = last
    else:
        index = 0, None
        for i in range(1, last):
            if i not in have:
                index = i
                break
    if index is not None:
        (index, img, title, text) = xkcd(index)
        have.add(index)
        spawn('curl', img, abort_timer = 2, get_stdout = 'xkcd.png')
        title = Huge(escape(title))
        text = escape(text, end = '\n')
        doc += sectionx(whiteonblack('xkcd'))
        if standalonetest(title):
            doc += '\\noindent\n'
            doc += title + '\n\n'
        doc += '\\vspace{1em}\n'
        doc += '\includegraphics[max width=\\linewidth,max height=\\textheight]{%s}\n\n' % 'xkcd.png'
        doc += '\\vspace{1em}\n'
        if standalonetest(text):
            doc += '\\noindent\n'
            doc += text + '\n\n'
        have = repr(have).encode('utf-8')
        with open(state, 'wb') as file:
            file.write(have)
            file.flush()
except:
    pass



## (done)
doc += end('document')
write(doc)