Read in file by command line argument and split on tab delimiter in Python
An example of how to read a file into a list based on a command line argument and split on a tab delimiter on Python with some error catching.
#!/usr/bin/python # -*- coding: utf-8 -*- import sys try: li_tsv = [line.strip() for line in open(sys.argv)] # Open target file, strip newline characters from lines, define as list. li_tsv = [element.split('\t') for element in li_tsv] # Split elements of list based on tab delimiters. except IndexError: # Check if arguments were given sys.stdout.write("No arguments received. Please check your input:\n") sys.stdout.write("\t$ python.py input.tsv\n") sys.exit() except IOError: # Check if file is unabled to be opened. sys.stdout.write("Cannot open target file. Please check your input:\n") sys.stdout.write("\t$ python.py input.tsv\n") sys.exit()