Unable to connect aws s3 bucket using boto

问题

AWS_ACCESS_KEY_ID = '<access key>'
AWS_SECRET_ACCESS_KEY = '<my secret key>'
Bucketname = 'Bucket-name' 
import boto
from boto.s3.key import Key
import boto.s3.connection
conn = boto.connect_s3(AWS_ACCESS_KEY_ID,AWS_SECRET_ACCESS_KEY,
        host ='s3.ap-southeast-1.amazonaws.com',
        is_secure=True,               # uncommmnt if you are not using ssl
        calling_format = boto.s3.connection.OrdinaryCallingFormat(),
        )
bucket = conn.get_bucket(Bucketname)

Error:

  Traceback (most recent call last):
   File "uploads3.py", line 69, in <module>
    upload_hello_file_s3()
  File "uploads3.py", line 25, in upload_hello_file_s3
    bucket = conn.get_bucket(Bucketname)
  File "/usr/local/lib/python2.7/dist-packages/boto/s3/connection.py", line 431, in get_bucket
    bucket.get_all_keys(headers, maxkeys=0)
  File "/usr/local/lib/python2.7/dist-packages/boto/s3/bucket.py", line 364, in get_all_keys
    '', headers, **params)
  File "/usr/local/lib/python2.7/dist-packages/boto/s3/bucket.py", line 321, in _get_all
    query_args=s)
  File "/usr/local/lib/python2.7/dist-packages/boto/s3/connection.py", line 543, in make_request
    override_num_retries=override_num_retries)
  File "/usr/local/lib/python2.7/dist-packages/boto/connection.py", line 937, in make_request
    return self._mexe(http_request, sender, override_num_retries)
  File "/usr/local/lib/python2.7/dist-packages/boto/connection.py", line 899, in _mexe
    raise e
socket.gaierror: [Errno -2] Name or service not known

please help me to solve this problem there is no problem in bucket name and access key and secret key.

回答1:

You can also use the following (boto.s3.connect_to_region):

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

AWS_ACCESS_KEY_ID = '<access key>'
AWS_SECRET_ACCESS_KEY = '<my secret key>'
Bucketname = 'Bucket-name' 


conn = boto.s3.connect_to_region('ap-southeast-1',
       aws_access_key_id=AWS_ACCESS_KEY_ID,
       aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
       is_secure=True,               # uncomment if you are not using ssl
       calling_format = boto.s3.connection.OrdinaryCallingFormat(),
       )
bucket = conn.get_bucket(Bucketname)

This way you don't have to care about the 'exact' endpoint with the full hostname. And yes like @garnaat mentioned, use the latest boto API.

回答2:

from boto3.session import Session

ACCESS_KEY='your_access_key'

SECRET_KEY='your_secret_key'

session = Session(aws_access_key_id=ACCESS_KEY,aws_secret_access_key=SECRET_KEY)

s3 = session.resource('s3')

my_bucket = s3.Bucket('bucket_name')

for s3_file in my_bucket.objects.all():

           print(s3_file.key)

回答3:

The request to the host s3.ap-southeast-1.amazonaws.com is failing. I also cannot resolve it from my end. Check your bucket settings for the correct host.

There might also be a problem with your internet connection or the DNS server. Try pinging the host manually from command line and see if it resolves. Alternatively, try using a different DNS.

Edit: Quick googling suggests that the host might be s3-ap-southeast-1.amazonaws.com.

回答4:

There is a typo in the host parameter. The right one is: s3-ap-southeast-1.amazonaws.com

REFERENCES Amazon Regions and Endpoints

回答5:

Gotcha: capture traffic on your Ethernet link and ensure CNAME in DNS queries do NOT contain '\r' character e.g. in the bucket name.

来源：https://stackoverflow.com/questions/22454559/unable-to-connect-aws-s3-bucket-using-boto

标签

python

amazon-web-services

amazon-s3

boto