check if file exists in main reader class init

mastodon-sc · Mar 4, 2024 · 1a5fff3 · 1a5fff3
1 parent d98d531
commit 1a5fff3
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/mastodon_reader/mastodon_reader.py b/mastodon_reader/mastodon_reader.py
@@ -1,5 +1,6 @@
 import io
 import re
+import os
 import numpy
 import pandas
 import struct
@@ -163,6 +164,7 @@ def _fetch_block(self):
 
 class MastodonReader:
     def __init__(self, source_file):
+        assert os.path.exists(source_file), f"File '{source_file}' does not exist."
         self.source_file = source_file
 
     def read_metadata(self):