Python list write to CSV without the square brackets

Question

I have this main function:

def main():
    subprocess.call("cls", shell=True)
    ipList,hostList,manfList,masterList,temp = [],[],[],[],[]
    ipList,hostList,manfList, = getIPs(),getHosts(),getManfs()
    entries = len(hostList)
    i = 0
    for i in xrange(i, entries):
        temp = [[hostList[i]],[manfList[i]],[ipList[i]]]
        masterList.append(temp) 
    with open("output.csv", "wb") as f:
        writer = csv.writer(f, delimiter=',')
        writer.writerows(masterList)

My current output is that it successfully writes to CSV but my objective is to remove the square brackets.

I tried using .join() method however I understand that it only takes single lists and not nested lists.

How can I achieve this given that I'm using a 3 dimensional list? Note, I intend to add more columns of data in the future.

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Edit:

My current output for 1 row is similar to:

['Name1,'] ['Brand,'] ['1.1.1.1,']

I would like it to be:

Name1, Brand, 1.1.1.1,

Answer 1

Try to remove bracket for values in temp while creating masterList, because it will be nested list. So, the code should be:

def main():
    subprocess.call("cls", shell=True)
    ipList,hostList,manfList,masterList,temp = [],[],[],[],[]
    ipList,hostList,manfList, = getIPs(),getHosts(),getManfs()
    entries = len(hostList)
    i = 0
    for i in xrange(i, entries):
        temp = [hostList[i], manfList[i], ipList[i]]
        masterList.append(temp) 
    with open("output.csv", "wb") as f:
        writer = csv.writer(f, delimiter=',')
        writer.writerows(masterList)