Processing large files in chunks: inconsistent seek with readline Question: I am trying to read and process a large file in chunks with Python. I am following this blog that proposes a very fast way of reading and processing large chunks of data spread over multiple processes. I have only slightly updated the existing code, …
Explanation about def rewind(f): f.seek(0) Question: i was reading a book and there was a code which had a this line in it def rewind(f): f.seek(0) and this is a line that i can’t understand can you please explain me what is going on ? from sys import argv script, input_file = argv def print_all(f): …
How to delete only the content of file in python Question: I have a temporary file with some content and a python script generating some output to this file. I want this to repeat N times, so I need to reuse that file (actually array of files). I’m deleting the whole content, so the temp …
What is the most efficient way to get first and last line of a text file? Question: I have a text file which contains a time stamp on each line. My goal is to find the time range. All the times are in order so the first line will be the earliest time and the …
