请问这是为什么呢？

Traceback (most recent call last):
  File "E:\Acdream\Python\Workspace\Foundation.py", line 2, in <module>
    a = input()
EOFError: EOF when reading a line

这是我的sublime.build

{
    "cmd": ["E:\\Acdream\\Python\\Python34\\python.exe", "$file"]
}