How to write if/else in one line.

通常在服务器上安装模块是需要root权限的。

What's the simplest way of read in CSV file?

import csv

CSVRead = csv.reader(open(CSV_D, 'rU'))
CSV = ['>' + x[0] + '.' + x[1] + '\n' + x[2] + '\n' for x in CSVRead]


Attention:
'rU' is important. It will ignore whether the line feed character is '\n' or \r'.