Hi, every one. I am a second year EE student. I just started learning python for my project.
I intend to parse a csv file with a format like 3520005,"Toronto (Ont.)",C ,F,2503281,2481494,F,F,0.9,1040597,979330,630.1763,3972.4,1 2466023,"Montréal (Que.)",V ,F,1620693,1583590,T,F,2.3,787060,743204,365.1303,4438.7,2 5915022,"Vancouver (B.C.)",CY ,F,578041,545671,F,F,5.9,273804,253212,114.7133,5039.0,8 3519038,"Richmond Hill (Ont.)",T ,F,162704,132030,F,F,23.2,53028,51000,100.8917,1612.7,28 into a text file like the following Toronto 2503281 Montreal 1620693 Vancouver 578041 I am extracting the 1st and 5th column and save it into a text file. This is what i have so far. [code] import csv file = open('raw.csv') reader = csv.reader(file) f = open('NicelyDone.text','w') for line in reader: f.write("%s %s"%line[1],%line[5]) [/code] This is not working for me, I was able to extract the data from the csv file as line[1],line[5]. (I am able to print it out) But I dont know how to write it to a .text file in the format i wanted. Also, I have to process the first column eg, "Toronto (Ont.)" into "Toronto". I am familiar with the function find(), I assume that i could extract Toronto out of Toronto(Ont.) using "(" as the stopping character, but based on my research , I have no idea how to use it and ask it to return me the string(Toronto). Here is my question: 1:What is the data format for line[1], if it is string how come f.write()does not work. if it is not string, how do i convert it to a string? 2:How do i extract the word Toronto out of Toronto(Ont) into a string form using find() or other methods. My thinking is that I could add those 2 string together like c=a+' ' +b, that would give me the format i wanted. So i can use f.write() to write into a file ;) Sorry if my questions sounds too easy or stupid. Thanks ahead Zhen -- https://mail.python.org/mailman/listinfo/python-list