如何使用boto将文件上传到S3存储桶中的目录

时间:2013-02-26 09:47:54

标签: python amazon-web-services amazon-s3 boto

我想使用python在s3存储桶中复制一个文件。

Ex:我有桶名=测试。在桶中,我有2个文件夹名称“dump”& “输入”。现在我想使用python将文件从本地目录复制到S3“dump”文件夹......任何人都可以帮助我吗?

15 个答案:

答案 0 :(得分:90)

试试这个......

import boto
import boto.s3
import sys
from boto.s3.key import Key

AWS_ACCESS_KEY_ID = ''
AWS_SECRET_ACCESS_KEY = ''

bucket_name = AWS_ACCESS_KEY_ID.lower() + '-dump'
conn = boto.connect_s3(AWS_ACCESS_KEY_ID,
        AWS_SECRET_ACCESS_KEY)


bucket = conn.create_bucket(bucket_name,
    location=boto.s3.connection.Location.DEFAULT)

testfile = "replace this with an actual filename"
print 'Uploading %s to Amazon S3 bucket %s' % \
   (testfile, bucket_name)

def percent_cb(complete, total):
    sys.stdout.write('.')
    sys.stdout.flush()


k = Key(bucket)
k.key = 'my test file'
k.set_contents_from_filename(testfile,
    cb=percent_cb, num_cb=10)

[UPDATE] 我不是pythonist,所以感谢关于import语句的提醒。 另外,我不建议在自己的源代码中放置凭据。如果您在AWS内部运行此项,请使用带有实例配置文件(http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use_switch-role-ec2_instance-profiles.html)的IAM凭据,并在开发/测试环境中保持相同的行为,请使用AdRoll中的全息图(https://github.com/AdRoll/hologram

答案 1 :(得分:41)

不需要那么复杂:

s3_connection = boto.connect_s3()
bucket = s3_connection.get_bucket('your bucket name')
key = boto.s3.key.Key(bucket, 'some_file.zip')
with open('some_file.zip') as f:
    key.send_file(f)

答案 2 :(得分:33)

我使用了它,实现起来非常简单

import tinys3

conn = tinys3.Connection('S3_ACCESS_KEY','S3_SECRET_KEY',tls=True)

f = open('some_file.zip','rb')
conn.upload('some_file.zip',f,'my_bucket')

https://www.smore.com/labs/tinys3/

答案 3 :(得分:26)

import boto3

s3 = boto3.resource('s3')
BUCKET = "test"

s3.Bucket(BUCKET).upload_file("your/local/file", "dump/file")

答案 4 :(得分:10)

from boto3.s3.transfer import S3Transfer
import boto3
#have all the variables populated which are required below
client = boto3.client('s3', aws_access_key_id=access_key,aws_secret_access_key=secret_key)
transfer = S3Transfer(client)
transfer.upload_file(filepath, bucket_name, folder_name+"/"+filename)

答案 5 :(得分:10)

这也有效:

import os 
import boto
import boto.s3.connection
from boto.s3.key import Key

try:

    conn = boto.s3.connect_to_region('us-east-1',
    aws_access_key_id = 'AWS-Access-Key',
    aws_secret_access_key = 'AWS-Secrete-Key',
    # host = 's3-website-us-east-1.amazonaws.com',
    # is_secure=True,               # uncomment if you are not using ssl
    calling_format = boto.s3.connection.OrdinaryCallingFormat(),
    )

    bucket = conn.get_bucket('YourBucketName')
    key_name = 'FileToUpload'
    path = 'images/holiday' #Directory Under which file should get upload
    full_key_name = os.path.join(path, key_name)
    k = bucket.new_key(full_key_name)
    k.set_contents_from_filename(key_name)

except Exception,e:
    print str(e)
    print "error"   

答案 6 :(得分:4)

import boto
from boto.s3.key import Key

AWS_ACCESS_KEY_ID = ''
AWS_SECRET_ACCESS_KEY = ''
END_POINT = ''                          # eg. us-east-1
S3_HOST = ''                            # eg. s3.us-east-1.amazonaws.com
BUCKET_NAME = 'test'        
FILENAME = 'upload.txt'                
UPLOADED_FILENAME = 'dumps/upload.txt'
# include folders in file path. If it doesn't exist, it will be created

s3 = boto.s3.connect_to_region(END_POINT,
                           aws_access_key_id=AWS_ACCESS_KEY_ID,
                           aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
                           host=S3_HOST)

bucket = s3.get_bucket(BUCKET_NAME)
k = Key(bucket)
k.key = UPLOADED_FILENAME
k.set_contents_from_filename(FILENAME)

答案 7 :(得分:3)

这是三个衬里。只需按照boto3 documentation上的说明进行操作即可。

import boto3
s3 = boto3.resource(service_name = 's3')
s3.meta.client.upload_file(Filename = 'C:/foo/bar/baz.filetype', Bucket = 'yourbucketname', Key = 'baz.filetype')

一些重要的论点是:

参数:

  • 文件名str)-要上传的文件的路径。
  • 存储桶str)-要上传到的存储桶的名称。
  • str)-您要分配给s3存储桶中文件的的名称。该名称可以与文件名相同,也可以与您选择的名称不同,但是文件类型应保持不变。

    注意:我假设您已按照best configuration practices in the boto3 documentation中的建议将凭据保存在~\.aws文件夹中。

  • 答案 8 :(得分:2)

    在具有凭据的会话中将文件上传到s3。

    _schemas

    答案 9 :(得分:1)

    对于上传文件夹示例,如下代码和S3文件夹图片 enter image description here

    import boto
    import boto.s3
    import boto.s3.connection
    import os.path
    import sys    
    
    # Fill in info on data to upload
    # destination bucket name
    bucket_name = 'willie20181121'
    # source directory
    sourceDir = '/home/willie/Desktop/x/'  #Linux Path
    # destination directory name (on s3)
    destDir = '/test1/'   'S3 Path
    
    #max size in bytes before uploading in parts. between 1 and 5 GB recommended
    MAX_SIZE = 20 * 1000 * 1000
    #size of parts when uploading in parts
    PART_SIZE = 6 * 1000 * 1000
    
    access_key = 'MPBVAQ*******IT****'
    secret_key = '11t63yDV***********HgUcgMOSN*****'
    
    conn = boto.connect_s3(
            aws_access_key_id = access_key,
            aws_secret_access_key = secret_key,
            host = '******.org.tw',
            is_secure=False,               # uncomment if you are not using ssl
            calling_format = boto.s3.connection.OrdinaryCallingFormat(),
            )
    bucket = conn.create_bucket(bucket_name,
            location=boto.s3.connection.Location.DEFAULT)
    
    
    uploadFileNames = []
    for (sourceDir, dirname, filename) in os.walk(sourceDir):
        uploadFileNames.extend(filename)
        break
    
    def percent_cb(complete, total):
        sys.stdout.write('.')
        sys.stdout.flush()
    
    for filename in uploadFileNames:
        sourcepath = os.path.join(sourceDir + filename)
        destpath = os.path.join(destDir, filename)
        print ('Uploading %s to Amazon S3 bucket %s' % \
               (sourcepath, bucket_name))
    
        filesize = os.path.getsize(sourcepath)
        if filesize > MAX_SIZE:
            print ("multipart upload")
            mp = bucket.initiate_multipart_upload(destpath)
            fp = open(sourcepath,'rb')
            fp_num = 0
            while (fp.tell() < filesize):
                fp_num += 1
                print ("uploading part %i" %fp_num)
                mp.upload_part_from_file(fp, fp_num, cb=percent_cb, num_cb=10, size=PART_SIZE)
    
            mp.complete_upload()
    
        else:
            print ("singlepart upload")
            k = boto.s3.key.Key(bucket)
            k.key = destpath
            k.set_contents_from_filename(sourcepath,
                    cb=percent_cb, num_cb=10)
    

    PS:有关更多参考,URL

    答案 10 :(得分:1)

    我觉得有些东西还需要点命令:

    import boto3
    from pprint import pprint
    from botocore.exceptions import NoCredentialsError
    
    
    class S3(object):
        BUCKET = "test"
        connection = None
    
        def __init__(self):
            try:
                vars = get_s3_credentials("aws")
                self.connection = boto3.resource('s3', 'aws_access_key_id',
                                                 'aws_secret_access_key')
            except(Exception) as error:
                print(error)
                self.connection = None
    
    
        def upload_file(self, file_to_upload_path, file_name):
            if file_to_upload is None or file_name is None: return False
            try:
                pprint(file_to_upload)
                file_name = "your-folder-inside-s3/{0}".format(file_name)
                self.connection.Bucket(self.BUCKET).upload_file(file_to_upload_path, 
                                                                          file_name)
                print("Upload Successful")
                return True
    
            except FileNotFoundError:
                print("The file was not found")
                return False
    
            except NoCredentialsError:
                print("Credentials not available")
                return False
    
    
    

    这里有三个重要变量,即 BUCKET 常量, file_to_upload file_name

    BUCKET:是您的S3存储桶的名称

    file_to_upload_path:必须是您要上传的文件的路径

    file_name:是存储桶中的结果文件和路径(这是您添加文件夹或其他文件的位置)

    有很多方法,但是您可以在这样的另一个脚本中重复使用此代码

    import S3
    
    def some_function():
        S3.S3().upload_file(path_to_file, final_file_name)
    

    答案 11 :(得分:0)

    xmlstr = etree.tostring(listings,  encoding='utf8', method='xml')
    conn = boto.connect_s3(
            aws_access_key_id = access_key,
            aws_secret_access_key = secret_key,
            # host = '<bucketName>.s3.amazonaws.com',
            host = 'bycket.s3.amazonaws.com',
            #is_secure=False,               # uncomment if you are not using ssl
            calling_format = boto.s3.connection.OrdinaryCallingFormat(),
            )
    conn.auth_region_name = 'us-west-1'
    
    bucket = conn.get_bucket('resources', validate=False)
    key= bucket.get_key('filename.txt')
    key.set_contents_from_string("SAMPLE TEXT")
    key.set_canned_acl('public-read')
    

    答案 12 :(得分:0)

    使用boto3

    import logging
    import boto3
    from botocore.exceptions import ClientError
    
    
    def upload_file(file_name, bucket, object_name=None):
        """Upload a file to an S3 bucket
    
        :param file_name: File to upload
        :param bucket: Bucket to upload to
        :param object_name: S3 object name. If not specified then file_name is used
        :return: True if file was uploaded, else False
        """
    
        # If S3 object_name was not specified, use file_name
        if object_name is None:
            object_name = file_name
    
        # Upload the file
        s3_client = boto3.client('s3')
        try:
            response = s3_client.upload_file(file_name, bucket, object_name)
        except ClientError as e:
            logging.error(e)
            return False
        return True
    

    有关更多:- https://boto3.amazonaws.com/v1/documentation/api/latest/guide/s3-uploading-files.html

    答案 13 :(得分:0)

    您还应该提及内容类型,以省略文件访问问题。

    import os
    image='fly.png'
    s3_filestore_path = 'images/fly.png'
    filename, file_extension = os.path.splitext(image)
    content_type_dict={".png":"image/png",".html":"text/html",
                   ".css":"text/css",".js":"application/javascript",
                   ".jpg":"image/png",".gif":"image/gif",
                   ".jpeg":"image/jpeg"}
    
    content_type=content_type_dict[file_extension]
    s3 = boto3.client('s3', config=boto3.session.Config(signature_version='s3v4'),
                      region_name='ap-south-1',
                      aws_access_key_id=S3_KEY,
                      aws_secret_access_key=S3_SECRET)
    s3.put_object(Body=image, Bucket=S3_BUCKET, Key=s3_filestore_path, ContentType=content_type)
    

    答案 14 :(得分:0)

    如果您的系统上安装了aws command line interface,则可以使用pythons subprocess库。 例如:

    import subprocess
    def copy_file_to_s3(source: str, target: str, bucket: str):
       subprocess.run(["aws", "s3" , "cp", source, f"s3://{bucket}/{target}"])
    

    类似地,您可以将该逻辑用于各种AWS客户端操作,例如下载或列出文件等。还可以获取返回值。这样就无需导入boto3。我想它的用途不是那样的,但实际上,我觉得那样非常方便。这样,您还可以在控制台中显示上载的状态-例如:

    Completed 3.5 GiB/3.5 GiB (242.8 MiB/s) with 1 file(s) remaining
    

    要根据您的意愿修改方法,建议您参考subprocess参考和AWS Cli reference

    注意:这是我对similar question的回答的副本。