Clean up day04 part 1

day04.in

@@ -600,4 +600,3 @@
 53 79 89 32 14
 55 63 50  7 62
 
-EOF

day04.py

@@ -42,18 +42,10 @@ def ingest(input):
 
 
 def part1():
-    with open("day04.in", "r") as f:
-        input_seq = [int(x) for x in f.readline().rstrip().split(",")]
-        f.readline()
+    input_seq = []
     boards = []
-        line = f.readline()
-        while line != "EOF\n":
-            board = []
-            while line != "\n":
-                board.append([int(x) for x in line.rstrip().split()])
-                line = f.readline()
-            boards.append(board)
-            line = f.readline()
+    with open("day04.in", "r") as f:
+        input_seq, boards = ingest([line for line in f])
 
     checked = [[[0 for i in row] for row in board] for board in boards]
     score = 0
@@ -71,8 +63,8 @@ def part1():
 
 
 def part2():
-    input_seq = None
-    boards = None
+    input_seq = []
+    boards = []
     with open("day04.in2", "r") as f:
         input_seq, boards = ingest([line for line in f])
     print(input_seq)