Python练习：except报错Statement expected, found Py:EXCEPT_KEYWORD

 # 新建文件
8  f = open("gushi.txt","w")
9  f.write("锄禾日当午，汗滴禾下土。",end = "\n")
10  f.write("谁知盘中餐，粒粒皆辛苦。",end = "\n")

# 读取、复制文件
13  try:
14     c = open("copy.txt","w")
15     content = f.readlines()
16     c.write(content)
17     print("复制完毕")
18  finally:
19     f.close()
20     c.close()
21  except Exception as e:
22     print(e)

运行结果及报错内容

Statement expected, found Py:EXCEPT_KEYWORD：21
End of statement expected：21
Statement expected, found Py:AS_KEYWORD：21
Expression expected：21
Unexpected indent：22

except语句21行，每个空格都显示红色波浪线。尝试输入了几次，都显示同样的问题，不知道问题出在哪里。请求各位指导！

先是except， 再是finally。