python pandas select both head and tail Question: For a DataFrame in Pandas, how can I select both the first 5 values and last 5 values? For example In [11]: df Out[11]: A B C 2012-11-29 0 0 0 2012-11-30 1 1 1 2012-12-01 2 2 2 2012-12-02 3 3 3 2012-12-03 4 4 4 …
How can I tail a log file in Python? Question: I’d like to make the output of tail -F or something similar available to me in Python without blocking or locking. I’ve found some really old code to do that here, but I’m thinking there must be a better way or a library to do …
Head and tail in one line Question: Is there a pythonic way to unpack a list in the first element and the “tail” in a single command? For example: >> head, tail = **some_magic applied to** [1, 1, 2, 3, 5, 8, 13, 21, 34, 55] >> head 1 >>> tail [1, 2, 3, 5, …
How to implement a pythonic equivalent of tail -F? Question: What is the pythonic way of watching the tail end of a growing file for the occurrence of certain keywords? In shell I might say: tail -f “$file” | grep “$string” | while read hit; do #stuff done Asked By: pra || Source Answers: Well, …
Get last n lines of a file, similar to tail Question: I’m writing a log file viewer for a web application and for that I want to paginate through the lines of the log file. The items in the file are line based with the newest item at the bottom. So I need a tail() …
