[core] restructure to allow PIP packaging

OK - so I have to admit I *hate* the fact that PIP seems to require a
subdirectory named like the library.

But since the PIP package is something really nifty to have (thanks to
@tony again!!!), I updated the codebase to hopefully conform with what
PIP expects. Testruns so far look promising...

bumblebee_status/modules/contrib/sun.py

@@ -0,0 +1,99 @@
+# pylint: disable=C0111,R0903
+
+"""Displays sunrise and sunset times
+
+Requires the following python packages:
+    * requests
+    * suntime
+
+Parameters:
+    * cpu.lat : Latitude of your location
+    * cpu.lon : Longitude of your location
+
+(if none of those are set, location is determined automatically via location APIs)
+
+contributed by `lonesomebyte537 <https://github.com/lonesomebyte537>`_ - many thanks!
+"""
+
+from suntime import Sun, SunTimeException
+import requests
+from dateutil.tz import tzlocal
+
+import datetime
+
+import core.module
+import core.widget
+import core.decorators
+
+import util.location
+
+
+class Module(core.module.Module):
+    @core.decorators.every(hours=1)
+    def __init__(self, config, theme):
+        super().__init__(config, theme, core.widget.Widget(self.suntimes))
+
+        lat = self.parameter("lat", None)
+        lon = self.parameter("lon", None)
+        self.__sun = None
+
+        if not lat or not lon:
+            lat, lon = util.location.coordinates()
+        if lat and lon:
+            self.__sun = Sun(float(lat), float(lon))
+
+    def suntimes(self, _):
+        if self.__sunset and self.__sunrise:
+            if self.__isup:
+                return "\u21A7{} \u21A5{}".format(
+                    self.__sunset.strftime("%H:%M"), self.__sunrise.strftime("%H:%M")
+                )
+            return "\u21A5{} \u21A7{}".format(
+                self.__sunrise.strftime("%H:%M"), self.__sunset.strftime("%H:%M")
+            )
+        return "n/a"
+
+    def __calculate_times(self):
+        self.__isup = False
+
+        order_matters = True
+
+        try:
+            self.__sunrise = self.__sun.get_local_sunrise_time()
+        except SunTimeException:
+            self.__sunrise = "no sunrise"
+            order_matters = False
+
+        try:
+            self.__sunset = self.__sun.get_local_sunset_time()
+        except SunTimeException:
+            self.__sunset = "no sunset"
+            order_matters = False
+
+        if not order_matters:
+            return
+
+        now = datetime.datetime.now(tz=tzlocal())
+        if now > self.__sunset:
+            tomorrow = (now + datetime.timedelta(days=1)).date()
+            try:
+                self.__sunrise = self.__sun.get_local_sunrise_time(tomorrow)
+                self.__sunset = self.__sun.get_local_sunset_time(tomorrow)
+            except SunTimeException:
+                self.__sunrise = "no sunrise"
+                self.__sunset = "no sunset"
+
+        elif now > self.__sunrise:
+            tomorrow = (now + datetime.timedelta(days=1)).date()
+            try:
+                self.__sunrise = self.__sun.get_local_sunrise_time(tomorrow)
+            except SunTimeException:
+                self.__sunrise = "no sunrise"
+                return
+            self.__isup = True
+
+    def update(self):
+        self.__calculate_times()
+
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4