typeerror'_csv.reader'对象不可订阅

Question

当我尝试在python中打开文件时，我收到错误，类型错误＆＃39; _csv.reader＆＃39;对象不可订阅。代码如下，有人可以帮助我

with open(file) as f:  
    reader = csv.reader(f, delimiter='\t')  
    for line in reader:  
        oldseq, city, state, newseq = line  

此处的错误在以下代码中，适用于阅读器[：1]中的行：

with open(newfile) as f:  
    reader = csv.reader(f, delimiter='\t')  
    for line in reader[:1]:  
        oldseq, city, state, newseq = line  

我需要跳过第一行，因为它有标题，这就是为什么我在做读者[：1]

Answer 1

您无法对reader个对象进行切片;您可以跳过第一行：

with open(newfile) as f:  
    reader = csv.reader(f, delimiter='\t')
    next(reader, None)  # skip header
    for line in reader:  
        oldseq, city, state, newseq = line