[英]How to find line number of cursor in Python?
I am reading a file in Python. 我正在用Python阅读一个文件。 After I read a bunch of lines, is there a convenient function that I can use to get the current line number in the file that the cursor is on?
在我读了一堆行之后,是否有一个方便的函数可以用来获取光标所在文件中的当前行号?
I am trying to refrain from using a counter since I have multiple functions that read the same file and may move the cursor all over the place. 我试图避免使用计数器,因为我有多个函数读取相同的文件,并可能将光标移动到整个地方。
Thanks 谢谢
You'll probably need to keep track of it separately, along with your file. 您可能需要单独跟踪它以及您的文件。 You might wrap your file object to include a counter.
您可以包装文件对象以包含计数器。 Python itself only keeps track of how far along you are in terms of bytes, and has no way to move around based on line numbers.
Python本身只跟踪你在字节方面的距离,并且无法根据行号移动。
Edit: I stand corrected. 编辑:我纠正了。 S.Lott's suggestion of
fileinput
is spot on. fileinput
关于fileinput
的建议是现货。
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