Question

如何使用Python获取日期/时间？

使用python

查找日期/时间是什么意思

提前谢谢

Answer 1

REGION = 'us-west-2'  # or whichever


def main(queue_name):
    """Continuously poll the queue for messages (jobs)."""
    sqs = boto3.resource('sqs', region_name=REGION)
    queue = sqs.get_queue_by_name(QueueName=queue_name)
    while True:
        poll(queue=queue)

def poll(queue):
    messages = queue.receive_messages()  # Note: MaxNumberOfMessages default is 1.    
    for m in messages:
        process_message(m)

def process_message(message):
    print(message.body)
    # ...
    if success:  # processed ok
        message.delete()  # remove from queue
    else:  # an error of some kind
        message.change_visibility(VisibilityTimeout=1)  # dead letter or try again

我通常使用以下代码段执行此操作：

//var form = document.getElementsByTagName("form")[0];
//form.setAttribute("method", "POST");

var data = JSON.parse(localStorage.getItem('data'))


if (data == null) {
  data = new Array();
}

var add = document.getElementsByTagName("button")[0];
add.setAttribute("onclick", "validate()");
//console.log(add);

function remove(obj) {
  console.log(data);
  var item_to_delete = obj.id;
  data.splice(item_to_delete,1);
  console.log(data);
  console.log(obj.id);
  localStorage.setItem("data", JSON.stringify(data))
  location.reload();
}

function validate() {

  var age = document.getElementsByName("age")[0].value;
  var relation = document.getElementsByName("rel")[0].value;
  var is_smoker = document.getElementsByName("smoker")[0].checked

  if (is_smoker) {
    smoker = "Yes";
  }
  else {
    smoker = "No";
  }

  if (age.length == 0 || relation == "") {
    alert ("Please fill out the form")
  }

  else {

    var myObj = {"age": age, "relation": relation, "smoker":smoker};

    data.push(myObj);

    localStorage.setItem("data", JSON.stringify(data))

  }

}

var debug = document.getElementsByTagName("ol")[0];

//console.log(debug)


for (var i = 0; i < data.length; i++) {
  debug.innerHTML += "<li id = '" + i + "' onclick = 'remove(this)'>Age: " +
                     data[i].age + " ||| Relationship: " +
                     data[i].relation + " ||| Smoker? " +
                     data[i].smoker + "</li>"
}

Answer 2

您的代码适用于我。这是我看到的输出（打印json.dumps（message，indent = 4）），如果我运行代码然后将消息发送到我的SQS队列：

{
    "Messages": [
        {
            "Body": "Hello Jo Ko!",
            "ReceiptHandle": "redacted",
            "MD5OfBody": "redacted",
            "MessageId": "redacted"
        }
    ],
    "ResponseMetadata": {
        "RetryAttempts": 0,
        "HTTPStatusCode": 200,
        "RequestId": "redacted",
        "HTTPHeaders": {
            "x-amzn-requestid": "redacted",
            "content-length": "800",
            "server": "Server",
            "connection": "keep-alive",
            "date": "Wed, 17 May 2017 16:00:00 GMT",
            "content-type": "text/xml"
        }
    }
}

PS botocore SQS receive_message方法不返回消息。它返回一个包含一系列消息的字典。

Answer 3

您可以使用datetime.now作为当地时间。对于UTC / EST / WIB等，您可以将时间格式更改为epoch（unix）以用于时差，然后再放回所需的格式。

from datetime import datetime

from datetime import timedelta



local_time = datetime.now()

utc_time = datetime.now() - timedelta(hours=8)

est_time = datetime.now() - timedelta(hours=12)

wib_time = datetime.now() - timedelta(hours=1)

pst_time = datetime.now() + timedelta(hours=9)

wat_time = datetime.now() - timedelta(hours=9)

fmt = '%a, %Y/%m/%d,%H:%M'

如何使用Python获取日期/时间？

3 个答案: