refactor: raise OSError instead of FileNotFoundError

yt/convenience.py

@@ -54,7 +54,7 @@ def load(*args ,**kwargs):
             from yt.data_objects.time_series import DatasetSeries
             ts = DatasetSeries(*args, **kwargs)
             return ts
-        except (TypeError, FileNotFoundError, YTOutputNotIdentified):
+        except (TypeError, OSError, YTOutputNotIdentified):
             pass
         # We check if either the first argument is a dict or list, in which
         # case we try identifying candidates.

yt/data_objects/time_series.py

@@ -64,7 +64,7 @@ def get_filenames_from_glob_pattern(pattern):
     # we try to match the pattern from the test data dir
     file_list = glob.glob(epattern) or glob.glob(os.path.join(data_dir, pattern))
     if not file_list:
-        raise FileNotFoundError("No file matched this pattern or pattern(s) {}".format(pattern))
+        raise OSError("No match found for pattern : {}".format(pattern))
     return sorted(file_list)
 
 attrs = ("refine_by", "dimensionality", "current_time",
@@ -490,7 +490,7 @@ def __init__(self, parameter_filename, find_outputs=False):
         """
 
         if not os.path.exists(parameter_filename):
-            raise IOError(parameter_filename)
+            raise OSError(parameter_filename)
         self.parameter_filename = parameter_filename
         self.basename = os.path.basename(parameter_filename)
         self.directory = os.path.dirname(parameter_filename)