Partially initialized module, Circular Import Error

[aarontgit]

Issue Summary

I am trying to integrate SendGrid using the WebAPI with Python, however I keep getting this error message: 'cannot import name 'SendGridAPIClient' from partially initialized module 'sendgrid' (most likely due to a circular import)'

Steps to Reproduce

1. This is the first step
2. This is the second step
3. Further steps, etc.

Code Snippet

from sendgrid import SendGridAPIClient
from sendgrid.helpers.mail import Mail

message = Mail(
    from_email='from_email@example.com',
    to_emails='to@example.com',
    subject='Sending with Twilio SendGrid is Fun',
    html_content='<strong>and easy to do anywhere, even with Python</strong>')
try:
    sg = SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
    response = sg.send(message)
    print(response.status_code)
    print(response.body)
    print(response.headers)
except Exception as e:
    print(e.message)

Exception/Log

# paste exception/log here

Technical details:

• sendgrid-python version:
• python version: 3.9.1

[rlSimonLi]

Is your python filename along the lines email.py or sendgrid.py? Try changing it to something else.

[aarontgit]

Is your python filename along the lines email.py or sendgrid.py? Try changing it to something else.
That worked. However, I am now receiving a 'UnauthorizedError: HTTP Error 401: Unauthorized'

[thinkingserious]

Thanks for helping out @rlSimonLi!

@aarontgit please check that your environment variable SENDGRID_API_KEY is set correctly and that os.environ.get('SENDGRID_API_KEY') is returning the right value. If so, then there may be an issue with your account (in that case, please reach out to https://support.sendgrid.com). Thank you!