Cut and paste python on the command line

Simple example: number the lines in a text file

Read the file 'message.txt' and print a linenumber plus the line content.

python - message.txt <<EOF
import sys
i=1
with open(sys.argv[1],"r") as f:
  for l in f.readlines():
    print i,l.strip('\n')
    i+=1
EOF

Output:

1 Better shutdown your ftp service. 
2 
3 W. 

Create a python program that reads a csv file, and uses the named fields

TBD.

Use namedtuple

Also see districtdatalabs.silvrback.com/simple-csv-data-wrangling-with-python