Check that all date_added are actually dates (including blinka)

Author: jepler

tools/check-boards.py

@@ -1,10 +1,10 @@
 #!/usr/bin/python3
+import datetime
 import os
 import json
 import re
 from pathlib import Path
 import frontmatter
-from dateutil.parser import parse
 
 # Check CircuitPython Download Features
 with open('template.md', "rt") as f:
@@ -31,14 +31,7 @@ def verify_board_id(folder):
     return valid
 
 def valid_date(date):
-    date = str(date)
-    if date:
-        try:
-            parse(date)
-            return True
-        except:
-            return False
-    return False
+    return isinstance(date, datetime.date)
 
 def verify_features(folder, valid_features):
     valid = True
@@ -160,7 +153,7 @@ def verify_blinka_board(folder):
     print("Family or not found or invalid value. See https://learn.adafruit.com/how-to-add-a-new-board-to-the-circuitpython-org-website/adding-to-downloads for details")
     raise SystemExit(True)
 
-if not verify_date_added("_board") or not verify_date_added("blinka"):
+if not verify_date_added("_board") or not verify_date_added("_blinka"):
     print("Date Added field not found or invalid value. See https://learn.adafruit.com/how-to-add-a-new-board-to-the-circuitpython-org-website/adding-to-downloads for details")
     raise SystemExit(True)