使用 Python 在 CSV 文件中搜索和匹配字符串的一部分

Question

这是我拥有的大型 csv 文件的一部分：

"66.35.223.128","66.35.223.143","1109647232","1109647247","AU","Australia"
"66.35.223.144","66.35.227.191","1109647248","1109648319","US","United States"
"66.35.227.192","66.35.227.207","1109648320","1109648335","JP","Japan"
"66.35.227.208","66.35.230.31","1109648336","1109648927","US","United States"
"66.35.230.32","66.35.230.47","1109648928","1109648943","AU","Australia"
"66.35.230.48","66.35.236.207","1109648944","1109650639","US","United States"
"66.35.236.208","66.35.236.223","1109650640","1109650655","AU","Australia"
"66.35.236.224","66.36.127.255","1109650656","1109688319","US","United States"

前两列是 IP 地址范围。我有一个 IP 地址 66.35.250.168 我需要搜索 csv 文件以查看它位于哪个范围内，并打印出相应的国家/地区名称。

由于前两个数字 (66,35) 是相同的，我打算搜索包含它的行。我可以通过这样做搜索一个完整的字符串（66.35.205.88）：

import csv
with open('GeoIPCountryWhois.csv', mode='r') as f:
    reader = csv.reader(f)
    for row in reader:
        if row[0] in ['66.35.205.88']:
            print row

如果我搜索 66.35，我不会得到任何结果。你能告诉我一种我可以搜索字符串的一部分的方法吗（这里是'66.35'）？另外，您能告诉我如何找到找到字符串的确切行号吗？

提前致谢。

Answer 1

import csv
with open('GeoIPCountryWhois.csv', mode='r') as f:
    reader = csv.reader(f)
    for num, row in enumerate(reader):
        if '66.35' in row[0]:
            print num, row

请记住，如果'66.35'出现在地址中的其他位置或行中的其他位置，这可能会给您带来误报。

编辑：这是一个可以实际检查它是否在正确范围内的版本。

def numeric_ip(ip):
    return [int(x) for x in ip.split('.')]

desired_ip = numeric_ip('66.35.205.88')
with open('GeoIPCountryWhois.csv', mode='r') as f:
    for num, row in enumerate(csv.reader(f)):
        if numeric_ip(row[0]) <= desired_ip <= numeric_ip(row[1]):
            print num, row