Question

使用标准模块“re”可以从当前日期捕获/解析3天的条目吗？

下面我想要捕获条目的示例文件。

xx: xxxxxx ; xxxx: 2017-09-2T14:13:17 ; xxxxxxxx: xxxxxxxxxxxxxxxxxxxxxxxxxx

Answer 1

你必须用re模块提取带有小时的字符串然后：

from datetime import datetime
capturedEntries = []
THREE_DAYS = datetime.timedelta(3)

# I suppose you'are reading lines in another way, but as an example...
for entry in entries:
    # I'm assuming each entry follows the format
    # xx: xxxxxx ; xxxx: 2017-09-2T14:13:17 ; xxxxxxxx: xxxxxxxxxxxxxxxxxxxxxxxxxx
    stringDate = re.search(r'\d{4}-\d{1,2}-\d{1,2}T\d{2}:\d{2}:\d{2}', line)
    if stringDate.group():
        parsedDate = datetime.strptime(stringDate.group(), '%Y-%m-%dT%H:%M:%S')
        timeFromDate = (datetime.today() - parsedDate)
        if timeFromDate > THREE_DAYS:
            # We save only the datetimes you asked for in datetime format
            # For string format, replace parsedDate for stringDate
            capturedEntries.append(parsedDate)

按日期范围捕获/解析条目

1 个答案: