求助报错I/O operation on closed file与为什么指代相同内容的两个变量不相等

fc5igm

1. >>> fgirl3=open(r'D:\python\works\girl_3.txt','w')
   
2. >>> girl.writelines(each[3:len(each)])
   
3. Traceback (most recent call last):
   
4.   File "<pyshell#8>", line 1, in <module>
   
5.     girl.writelines(each[3:len(each)])
   
6. ValueError: I/O operation on closed file.
   
7. >>> girl
   
8. <_io.TextIOWrapper name='D:\\python\\works\\girl_3.txt' mode='w' encoding='cp936'>
   
9. >>> each[3:len(each)]
   
10. ':滚！！！'
    
11. >>> fgirl3.close()
    
12. >>> fgirl3=open(r'D:\python\works\girl_3.txt','w')
    
13. >>> girl.writelines(each[3:len(each)])
    
14. Traceback (most recent call last):
    
15.   File "<pyshell#13>", line 1, in <module>
    
16.     girl.writelines(each[3:len(each)])
    
17. ValueError: I/O operation on closed file.
    
18. >>> girl
    
19. <_io.TextIOWrapper name='D:\\python\\works\\girl_3.txt' mode='w' encoding='cp936'>

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经查，该报错往往指缩进错误。但是问题是，我用的交互界面，根本没有缩进。怎么会缩进错误呢？
求问怎么解决

找到错误原因了

1. >>> fgirl3.writelines(':滚！！！')
   
2. >>> girl
   
3. <_io.TextIOWrapper name='D:\\python\\works\\girl_3.txt' mode='w' encoding='cp936'>
   
4. >>> girl==fgirl3
   
5. False
   
6. >>> fgirl3
   
7. <_io.TextIOWrapper name='D:\\python\\works\\girl_3.txt' mode='w' encoding='cp936'>
   
8. >>> girl.writelines(':滚！！！')
   
9. Traceback (most recent call last):
   
10.   File "<pyshell#20>", line 1, in <module>
    
11.     girl.writelines(':滚！！！')
    
12. ValueError: I/O operation on closed file.

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但是新的问题又来了。明明girl和fgirl3指代的完全一致，为什么girl会不等于fgirl3？
同样的指代内容，为什么fgirl3正确，girl就错误？

fgirl3和girl的原始赋值过程

1. f=open(r'D:\python\works\record.txt')
   
2. fboy1=open(r'D:\python\works\boy_1.txt','w')
   
3. fboy2=open(r'D:\python\works\boy_2.txt','w')
   
4. fboy3=open(r'D:\python\works\boy_3.txt','w')
   
5. fgirl3=open(r'D:\python\works\girl_3.txt','w')
   
6. fgirl2=open(r'D:\python\works\girl_2.txt','w')
   
7. fgirl1=open(r'D:\python\works\girl_1.txt','w')
   
8. for num in range(3):
   
9.         boy=[fboy1,fboy2,fboy3][num]
   
10.         girl=[fgirl1,fgirl2,fgirl3][num]

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原代码因为无法成功运行已经被我删掉了。用帖子中赋值相关的代码重复操作后，结果却又相等了。
可能是什么奇奇怪怪的bug吧。
发到python论坛，论坛对此的回复则是多变量对同文件的引用并不相等。
总之，因为原代码已经删除，也无法再重新验证了。不过我个人倾向于可能是发生了系统bug。
https://python-forum.io/thread-33900-post-143118.html

fc5igm

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