[Correct open,read,write from files] #Python #open #read #write

corrent_py2.7_open_read_write

// vim: syntax=python
# In Python 2.6+, you could use io.open() that is default (builtin open()) on Python 3:

import io

with io.open("filename.txt", 'r') as file:
    # count lines of file
    num_lines =  sum(1 for line in file)
    
    # get N lines
    N = 3
    for i in range(N):
        print file.next()