Merge branch 'master' into custom-judge

# Conflicts:
#	jd4/case.py

jd4/case.py

@@ -1,5 +1,5 @@
 import csv
-import tarfile
+import re
 from asyncio import gather, get_event_loop
 from functools import partial
 from io import BytesIO, TextIOWrapper
@@ -100,13 +100,13 @@ def __init__(self, open_input, open_output, time_ns, memory_bytes, score):
 
     def do_input(self, input_file):
         try:
-            with self.open_input() as src, open(input_file, 'wb') as dst:
+            with open(input_file, 'wb') as dst, self.open_input() as src:
                 dos2unix(src, dst)
         except BrokenPipeError:
             pass
 
     def do_output(self, output_file):
-        with self.open_output() as ans, open(output_file, 'rb') as out:
+        with open(output_file, 'rb') as out, self.open_output() as ans:
             return compare_stream(ans, out)
 
 class CustomJudgeCase: