Home/ Questions/Stabilizing the error with the best answers: botocore.exceptions.noregionerror: you must specify a region
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Rocco Smith
  • 17
Asked: 2022-05-18T16:30:07+00:00 In:

Stabilizing the error with the best answers: botocore.exceptions.noregionerror: you must specify a region

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I am working on python, but I found the following warning message:

boto3 client NoRegionError: You must specify a region error only sometimes

Is there any way to stabilize the issue “botocore.exceptions.noregionerror: you must specify a region”?. I read a lot of topics about this, but all of them were trying to install anything. Is this the correct way, or any recommendation for me? Please find the beginning command below:

boto3.client('kms')
if endpoint is None:
  if region_name is None:
  # Raise a more specific error message that will give
  # better guidance to the user what needs to happen.
  raise NoRegionError()
you must specify a region
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2 Answers

  1. Best Answer
    Expert

    The cause:

    This error happens because boto3 library does not provide the source for the region from the ~/.aws/config because the region is defined in a profile which differs from the default.

    Solution:

    By some ways, you have to tell boto3 that where you want the kms client to be created. This could be done by using the region_name parameter as below:

    kms = boto3.client('kms', region_name='us-west-2')

    You also can have an area which is default associated with your profile in the ~/.aws/config file:

    [default]
region=us-west-2

    Using the environment variable also is not a bad solution:

    export AWS_DEFAULT_REGION=us-west-2

    However, you still need to tell Boto 3 which region you want to use.

    • 7
  2. os.environ['AWS_DEFAULT_REGION'] = 'your_region_name'

    Sensitivity was important in my case.

    • 22

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