[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/stock.py

@@ -0,0 +1,68 @@
+# -*- coding: UTF-8 -*-
+# pylint: disable=C0111,R0903
+
+"""Display a stock quote from worldtradingdata.com
+
+Requires the following python packages:
+    * requests
+
+Parameters:
+    * stock.symbols : Comma-separated list of symbols to fetch
+    * stock.change : Should we fetch change in stock value (defaults to True)
+
+
+contributed by `msoulier <https://github.com/msoulier>`_ - many thanks!
+"""
+
+import json
+import urllib.request
+
+import logging
+
+import core.module
+import core.widget
+import core.decorators
+
+import util.format
+
+
+class Module(core.module.Module):
+    @core.decorators.every(hours=1)
+    def __init__(self, config, theme):
+        super().__init__(config, theme, core.widget.Widget(self.value))
+
+        self.__symbols = self.parameter("symbols", "")
+        self.__change = util.format.asbool(self.parameter("change", True))
+        self.__value = None
+
+    def value(self, widget):
+        results = []
+        if not self.__value:
+            return "n/a"
+        data = json.loads(self.__value)
+
+        for symbol in data["quoteResponse"]["result"]:
+            valkey = "regularMarketChange" if self.__change else "regularMarketPrice"
+            sym = symbol.get("symbol", "n/a")
+            currency = symbol.get("currency", "USD")
+            val = "n/a" if not valkey in symbol else "{:.2f}".format(symbol[valkey])
+            results.append("{} {} {}".format(sym, val, currency))
+        return " ".join(results)
+
+    def fetch(self):
+        if self.__symbols:
+            url = "https://query1.finance.yahoo.com/v7/finance/quote?symbols="
+            url += (
+                self.__symbols
+                + "&fields=regularMarketPrice,currency,regularMarketChange"
+            )
+            return urllib.request.urlopen(url).read().strip()
+        else:
+            logging.error("unable to retrieve stock exchange rate")
+            return None
+
+    def update(self):
+        self.__value = self.fetch()
+
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4