[python] How to handle errors with boto3?

You need to do something when it fails to handle the issue. Right now you are returning the actual exception. For example, if its not a problem that the user exists already and you want to use it as a get_or_create function maybe you handle the issue by returning the existing user object.

try:
    user = iam_conn.create_user(UserName=username)
    return user
except botocore.exceptions.ClientError as e:

    #this exception could actually be other things other than exists, so you want to evaluate it further in your real code.
    if e.message.startswith(
        'enough of the exception message to identify it as the one you want')

        print('that user already exists.')
        user = iam_conn.get_user(UserName=username)
        return user

    elif e.message.some_other_condition:

         #something else
    else:
         #unhandled ClientError
         raise(e)
except SomeOtherExceptionTypeYouCareAbout as e:
    #handle it

# any unhandled exception will raise here at this point.
# if you want a general handler

except Exception as e:
    #handle it.

That said, maybe it is a problem for your app, in which case you want to want to put the exception handler around the code that called your create user function and let the calling function determine how to deal with it, for example, by asking the user to input another username, or whatever makes sense for your application.

Examples related to python

programming a servo thru a barometer Is there a way to view two blocks of code from the same file simultaneously in Sublime Text? python variable NameError Why my regexp for hyphenated words doesn't work? Comparing a variable with a string python not working when redirecting from bash script is it possible to add colors to python output? Get Public URL for File - Google Cloud Storage - App Engine (Python) Real time face detection OpenCV, Python xlrd.biffh.XLRDError: Excel xlsx file; not supported Could not load dynamic library 'cudart64_101.dll' on tensorflow CPU-only installation

Examples related to amazon-web-services

How to specify credentials when connecting to boto3 S3? Is there a way to list all resources in AWS Access denied; you need (at least one of) the SUPER privilege(s) for this operation Job for mysqld.service failed See "systemctl status mysqld.service" What is difference between Lightsail and EC2? AWS S3 CLI - Could not connect to the endpoint URL boto3 client NoRegionError: You must specify a region error only sometimes How to write a file or data to an S3 object using boto3 Missing Authentication Token while accessing API Gateway? The AWS Access Key Id does not exist in our records

Examples related to boto

How to write a file or data to an S3 object using boto3 Boto3 Error: botocore.exceptions.NoCredentialsError: Unable to locate credentials How to handle errors with boto3? Open S3 object as a string with Boto3 Listing contents of a bucket with boto3 How to save S3 object to a file using boto3 How to upload a file to directory in S3 bucket using boto How do I install boto? Amazon S3 boto - how to create a folder?

Examples related to boto3

How to specify credentials when connecting to boto3 S3? Difference in boto3 between resource, client, and session? boto3 client NoRegionError: You must specify a region error only sometimes How to write a file or data to an S3 object using boto3 Save Dataframe to csv directly to s3 Python Read file content from S3 bucket with boto3 Retrieving subfolders names in S3 bucket from boto3 check if a key exists in a bucket in s3 using boto3 Unable to install boto3 How to choose an AWS profile when using boto3 to connect to CloudFront