Python skips the first few lines to read the contents of the file __python

In Python programming, you often need to skip the first line to read the contents of a file. It is easy to think of setting a line_num for each line, and then determining if Line_num is 1, and if not equal to 1, read the operation. The corresponding Python code is as follows:

Input_file = open ("Test.csv")  
line_num = 0  
for line in Islice (Input_file, 1, None):  
    line_num + = 1  
    if (line _num!= 1):  
        do_readline ()  

However, this write code is inefficient because each time you need to determine whether the current line number is 1. Using the Itertools tools provided by Python, we can avoid such problems. The purpose of Itertools is to raise the efficiency of looping. The corresponding code is as follows:

From itertools import islice  
input_file = open ("Test.csv") for line in  
islice (input_file, 1, None):