[python] Get last n lines of a file, similar to tail

I found a probably the easiest way to find the first or last N lines of a file

Last N lines of a file(For Ex:N=10)

file=open("xyz.txt",'r")
liner=file.readlines()
for ran in range((len(liner)-N),len(liner)):
    print liner[ran]

First N lines of a file(For Ex:N=10)

file=open("xyz.txt",'r")
liner=file.readlines()
for ran in range(0,N+1):
    print liner[ran]

Examples related to python

programming a servo thru a barometer Is there a way to view two blocks of code from the same file simultaneously in Sublime Text? python variable NameError Why my regexp for hyphenated words doesn't work? Comparing a variable with a string python not working when redirecting from bash script is it possible to add colors to python output? Get Public URL for File - Google Cloud Storage - App Engine (Python) Real time face detection OpenCV, Python xlrd.biffh.XLRDError: Excel xlsx file; not supported Could not load dynamic library 'cudart64_101.dll' on tensorflow CPU-only installation

Examples related to file

Gradle - Move a folder from ABC to XYZ Difference between opening a file in binary vs text Angular: How to download a file from HttpClient? Python error message io.UnsupportedOperation: not readable java.io.FileNotFoundException: class path resource cannot be opened because it does not exist Writing JSON object to a JSON file with fs.writeFileSync How to read/write files in .Net Core? How to write to a CSV line by line? Writing a dictionary to a text file? What are the pros and cons of parquet format compared to other formats?

Examples related to file-io

Python, Pandas : write content of DataFrame into text File Saving response from Requests to file How to while loop until the end of a file in Python without checking for empty line? Getting "java.nio.file.AccessDeniedException" when trying to write to a folder How do I add a resources folder to my Java project in Eclipse Read and write a String from text file Python Pandas: How to read only first n rows of CSV files in? Open files in 'rt' and 'wt' modes How to write to a file without overwriting current contents? Write objects into file with Node.js

Examples related to tail

Printing the last column of a line in a file How can I tail a log file in Python? Head and tail in one line How to 'grep' a continuous stream? Unix tail equivalent command in Windows Powershell A Windows equivalent of the Unix tail command Get last n lines of a file, similar to tail

Examples related to logfile

how to create a logfile in php? Intellisense and code suggestion not working in Visual Studio 2012 Ultimate RC Get last n lines of a file, similar to tail