Python - 如何将今天在文件夹中创建的文件上传到 S3

Question

我有一个名为 myfolder 的文件夹，其中包含多个文件，文件名如下，

ID001_2017-04-15.csv, ID002_2017-04-15.csv, ID001_2017-04-16.csv, ID002_2017-04-16.csv, 
ID001_2017-04-17.csv, ID002_2017-04-17.csv, ID001_2017-04-18.csv, ID002_2017-04-18.csv

文件名上的日期是文件的创建日期。例如，文件 ID001_2017-04-17.csv 创建于 2017-04-17。这是我将文件夹中的所有文件上传到 Amazon S3 的方法，

import boto3

def upload_files(path):
    session = boto3.Session(
              aws_access_key_id = 'this is my access key',
              aws_secret_access_key = 'this is my secret key',
              region_name = 'this is my region'
              )
    s3 = session.resource('s3')
    bucket = s3.Bucket('this is my bucket')

    for subdir, dirs, files in os.walk(path):
        for file in files:
            full_path = os.path.join(subdir, file)
            with open(full_path, 'rb') as data:
                bucket.put_object(Key = full_path[len(path) + 1:], Body = data)

if __name__ == "__main__":
    upload_files('path to myfolder') ## Replace this with your folder directory

我的问题是我只能将今天创建的文件上传到 Amazon S3 吗？

Answer 1

这将检查文件是否是今天创建的:

import os.path
import datetime.datetime

# Create a datetime object for right now:
now = datetime.datetime.now()
# Create a datetime object for the file timestamp:
ctime = os.path.getctime('example.txt')
filetime = datetime.datetime.fromtimestamp(ctime)

# Check if they're the same day:
if filetime.year == now.year and filetime.month == now.month and filetime.day = now.day:
    print('File was created today')

如果您在 for file in files: 循环中放入类似的内容，您应该能够隔离今天创建的文件。