def check(process_output, judge_output, **kwargs):
    from six.moves import zip
    process_lines = list(filter(None, process_output.split(b'\n')))
    judge_lines = list(filter(None, judge_output.split(b'\n')))
    if len(process_lines) != len(judge_lines):
        return False
    for process_line, judge_line in zip(process_lines, judge_lines):
        if process_line.split() != judge_line.split():
            return False
    return True

try:
    from ._checker import standard
except ImportError as e:
    pass
else:
    def check(process_output, judge_output, _checker=standard, **kwargs):
        return _checker(judge_output, process_output)
    del standard

@@ -1,535 +1,36 @@
-def check(process_output, judge_output, **kwargs):%0A    from six.moves import zip%0A    process_lines = list(filter(None, process_output.split(b'%5Cn')))%0A    judge_lines = list(filter(None, judge_output.split(b'%5Cn')))%0A    if len(process_lines) != len(judge_lines):%0A        return False%0A    for process_line, judge_line in zip(process_lines, judge_lines):%0A        if process_line.split() != judge_line.split():%0A            return False%0A    return True%0A%0Atry:%0A    from ._checker import standard%0Aexcept ImportError as e:%0A    pass%0Aelse:%0A    
+from ._checker import standard%0A%0A
 def 
@@ -95,20 +95,16 @@
 wargs):%0A
-    
     retu
@@ -145,20 +145,16 @@
 output)%0A
-    
 del stan

Remove untested checker code path