[bugfix] reverting code from commit 3069e7d5. Checking for coordinates in dataless Parser IS necessary to make sure correct Metadata were found. Fixes #37.

[minor] Commented out search for network name in metadata filename considered being unsafe

PyLoT.py

@@ -3590,7 +3590,7 @@ class MainWindow(QMainWindow):
     def calc_magnitude(self):
         self.init_metadata()
         if not self.metadata:
-            return None
+            return []
 
         wf_copy = self.get_data().getWFData().copy()
 
@@ -3599,6 +3599,10 @@ class MainWindow(QMainWindow):
         for station in np.unique(list(self.getPicks('manual').keys()) + list(self.getPicks('auto').keys())):
             wf_select += wf_copy.select(station=station)
 
+        if not wf_select:
+            logging.warning('Empty Stream in calc_magnitude. Return.')
+            return []
+
         corr_wf = restitute_data(wf_select, self.metadata)
         # calculate moment magnitude
         moment_mag = MomentMagnitude(corr_wf, self.get_data().get_evt_data(), self.inputs.get('vp'),

pylot/core/util/dataprocessing.py

@@ -268,9 +268,6 @@ class Metadata(object):
         if not fnames:
             # search for station name in filename
             fnames = glob.glob(os.path.join(path_to_inventory, '*' + station + '*'))
-        if not fnames:
-            # search for network name in filename
-            fnames = glob.glob(os.path.join(path_to_inventory, '*' + network + '*'))
         if not fnames:
             if self.verbosity:
                 print('Could not find filenames matching station name, network name or seed id')
@@ -282,7 +279,7 @@ class Metadata(object):
                     continue
             invtype, robj = self._read_metadata_file(os.path.join(path_to_inventory, fname))
             try:
-                # robj.get_coordinates(station_seed_id)  # TODO: Commented out, failed with Parser, is this needed?
+                robj.get_coordinates(station_seed_id)
                 self.inventory_files[fname] = {'invtype': invtype,
                                                'data': robj}
                 if station_seed_id in self.seed_ids.keys():
@@ -290,6 +287,7 @@ class Metadata(object):
                 self.seed_ids[station_seed_id] = fname
                 return True
             except Exception as e:
+                logging.warning(e)
                 continue
         print('Could not find metadata for station_seed_id {} in path {}'.format(station_seed_id, path_to_inventory))
 
@@ -654,6 +652,8 @@ def restitute_data(data, metadata, unit='VEL', force=False, ncores=0):
     """
 
     # data = remove_underscores(data)
+    if not data:
+        return
 
     # loop over traces
     input_tuples = []
@@ -661,9 +661,14 @@ def restitute_data(data, metadata, unit='VEL', force=False, ncores=0):
         input_tuples.append((tr, metadata, unit, force))
         data.remove(tr)
 
-    pool = gen_Pool(ncores)
+    if ncores == 0:
-    result = pool.imap_unordered(restitute_trace, input_tuples)
+        result = []
-    pool.close()
+        for input_tuple in input_tuples:
+            result.append(restitute_trace(input_tuple))
+    else:
+        pool = gen_Pool(ncores)
+        result = pool.imap_unordered(restitute_trace, input_tuples)
+        pool.close()
 
     for tr, remove_trace in result:
         if not remove_trace: