sort BbbStatus before plotting

src/langfingaz/parseMeetings.py

@@ -58,6 +58,17 @@ class BbbStatus(object):
     and (TODO) it's CPU utilization and network usage.
     """
 
+    pointOfTime: datetime = None
+
+    @classmethod
+    def getKey(bbbStatus):
+        """
+        Returns the date of this object as key for sorting.
+
+        :return: Key that can be used for sorting
+        """
+        return bbbStatus.pointOfTime
+
     def __init__(self, meetings: List[Meeting], pointOfTime: datetime = None):
         """
         :param meetings: All current meetings

src/langfingaz/plotMeetings.py

@@ -1,8 +1,6 @@
 from pathlib import Path
 from typing import List
-import numpy
-import matplotlib.pyplot as plt  # TODO
-from datetime import datetime
+import matplotlib.pyplot as pyplot
 
 from langfingaz import loadData
 from langfingaz import parseMeetings
@@ -22,6 +20,7 @@ def plotMeetings(dataDir: Path = fileUtil.getProjectBaseDir().joinpath("data")):
             dataStr, t = loadData.loadData(file)
             meetings: List[Meeting] = parseMeetings.parseMeetingsData(dataStr)
             bbbStati.append(parseMeetings.BbbStatus(meetings, t))
+    sorted(bbbStati, key=BbbStatus.getKey)
 
     image: Path = doPlotMeetings(bbbStati)
     print("saved image at " + str(image))
@@ -40,10 +39,10 @@ def doPlotMeetings(bbbStati: List[BbbStatus]) -> Path:
         voices.append(bbbStatus.voiceParticipantCount)
 
     # Note that even in the OO-style, we use `.pyplot.figure` to create the figure.
-    _a, _b = plt.subplots()  # Create a figure and an axes.
-    fig: plt.Figure = _a
+    _a, _b = pyplot.subplots()  # Create a figure and an axes.
+    fig: pyplot.Figure = _a
     ax = _b  # of type plt.axes.Axes ??
-    if not (issubclass(type(fig), plt.Figure)):
+    if not (issubclass(type(fig), pyplot.Figure)):
         raise ValueError("expected Figure")
 
     ax.plot(time, participants, label='participants')  # Plot some data on the axes.