Python ValueError: IO operation on closed file

时间 2020-05-08

标签 python valueerror operation closed file 栏目 Python 繁體版

原文原文链接

ValueError IO operation on closed file表示处理了已经被关闭的数据，在python 中 with语句的上下文会帮助处理，也就是说，当python的处理代码不对齐的时候会出现这种状况。例子以下：html header那一行，突出，也就是文件在以前一行关闭了。就会报错ValueError: IO operation on closed file。如图：python

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2. Python ValueError: IO operation on closed file 的另外一种解法
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10. ClientDataSet1 cannot perform this operation on a closed dataset.错误
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1. python 报错：ValueError: I/O operation on closed file
2. Python ValueError: IO operation on closed file 的另外一种解法
3. 已解决：ValueError: I/O operation on closed file.
4. I/O operation on closed file.
5. python爬虫:I/O operation on closed file.
6. ValueError: I/O operation on closed file 的解决办法
7. The requested operation is invalid on a closed state
8. qAdmin cannot perform this operation on a closed dataset
9. python unittest使用HTMLTestRunnerNew报错：ValueError: write to closed file解决方式
10. ClientDataSet1 cannot perform this operation on a closed dataset.错误

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