MAINT: Updating datalogger download utilities

- Obspy requires UTCDatetime now
- RunList wasn't being parsed from the XML, so added that back in

bezpy/mt/datalogger.py

@@ -34,13 +34,15 @@ def download_iris_waveforms(self, name, start_time, end_time):
             # pylint: disable=import-error,import-outside-toplevel
             from obspy.clients.fdsn import Client
             _IRIS_CLIENT = Client("IRIS")
+        from obspy.core import UTCDateTime
 
         # Download the stream
         # The channels are
         # E: LQN/LQE
         # B: LFN/LFE/LFZ
         stream = _IRIS_CLIENT.get_waveforms("EM", name, "*", "*",
-                                            start_time, end_time)
+                                            UTCDateTime(start_time),
+                                            UTCDateTime(end_time))
         # Convert the stream to a pandas DataFrame
         waveforms = _convert_stream_to_df(stream)
         # Channel conversion factors and renaming

bezpy/mt/io.py

@@ -134,6 +134,12 @@ def read_xml(fname):
     site.calc_resisitivity()
 
     site.datalogger = DataLogger()
+    try:
+        site.datalogger.runlist = get_text(xml_site, "RunList").split()
+    except AttributeError:
+        # No RunList means no data
+        return site
+
     try:
         runinfo, nimsid, samplingrate = read_logger_info(site.xml)
         # No info about the nimsid from the logger read, so just return