Hello, is it possible to switch to a given string in a file in python, that is, I don’t need to read it completely, for example, read from the third to fifth line, while I don’t know how many bytes each of them contains?
2 answers
Since the score starts from zero, the third line will have an index of 2, the fifth will have 4
filename - file name
text = open(filename, 'r').readlines()[2:4]
we receive the list from the necessary lines text = '\n'.join(text)
we connect lines in one, but with hyphenation
Mihail Ris Mihail Ris
624 3 sixteen
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I advise you to use ConfigParser, it is most suitable for your idea. Here is a wiki for examples https://wiki.python.org/moin/ConfigParserExamples
Insider insider
1.262 9 33
- Could you give me an example - how can you read from the third to the fifth line of an arbitrary text file (in which there are no sections -
[section]) with the help of ConfigParser? - MaxU - I do have such sections in the file, but in general, this method does not seem to work. - Lamer
- @MaxU if there are no sections, read nothing - Insider
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file_object.tell()) at the beginning of each line or, if you constantly write to the file, save / write the positions of the lines as you add ... - MaxU jul