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1. stackoverflow.com › questions › 59590224Sending email with smtplib, no errors but no messages delivered

   stackoverflow.com › questions › 59590224

   Jan 4, 2020 · When there is no subject or body defined in the code, no errors shows, but message is not delivered. I want to create a function that will allow me to write what the subject and message is, rather than defining it in the code.

2. docs.python.org › 3 › librarysmtplib — SMTP protocol client — Python 3.13.0 documentation

   docs.python.org › 3 › library

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   2 days ago · The smtplib module defines an SMTP client session object that can be used to send mail to any internet machine with an SMTP or ESMTP listener daemon. For details of SMTP and ESMTP operation, consult RFC 821 (Simple Mail Transfer Protocol) and RFC 1869 (SMTP Service Extensions). Availability: not WASI.

3. docs.python.org › 3 › libraryemail.errors: Exception and Defect classes — Python 3.10.15 ...

   docs.python.org › 3 › library

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   Mar 10, 2015 · exception email.errors. HeaderParseError ¶. Raised under some error conditions when parsing the RFC 5322 headers of a message, this class is derived from MessageParseError. The set_boundary() method will raise this error if the content type is unknown when the method is called.

4. realpython.com › python311-error-messagesPython 3.11 Preview: Even Better Error Messages

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   Interpret the improved error messages in Python 3.11 and learn to more efficiently debug your code. Connect these improvements to the PEG parser and the better error messages in Python 3.10. Explore third-party packages offering enhanced error messages.

5. anh.cs.luc.edu › handsonPythonTutorial › usingerror5.1. Using Error Messages — Hands-on Python Tutorial for Python 3

   anh.cs.luc.edu › handsonPythonTutorial › usingerror

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   Idle provides information about the location and type of errors in several ways, depending on the kind of error. To be most useful, you want to be able to decode the error feedback. Idle developers keep updating error messages to make them more useful. The versions shown below are for Python 3.8.

6. realpython.com › python-raise-exceptionPython's raise: Effectively Raising Exceptions in Your Code

   realpython.com › python-raise-exception

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   In your Python journey, you’ll come across situations where you need to signal that something is going wrong in your code. For example, maybe a file doesn’t exist, a network or database connection fails, or your code gets invalid input. A common approach to tackle these issues is to raise an exception, notifying the user that an error has occurred.

7. People also ask

   What are Python error messages?

   • Python’s error messages, including the function calls that led to the error, are called tracebacks. In this section, you’ll learn how more precise error messages can help you in your debugging efforts. To start exploring, load scientists.py interactively into your Python 3.11 interpreter:

   Python 3.11 Preview: Even Better Error Messages – Real Python

   realpython.com/python311-error-messages/

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   What happens if SMTP does not raise an exception?

   • If this method does not raise an exception, it returns a dictionary, with one entry for each recipient that was refused. Each entry contains a tuple of the SMTP error code and the accompanying error message sent by the server.

   smtplib — SMTP protocol client — Python 3.13.0 documentation

   docs.python.org/3/library/smtplib.html

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   How do I improve Python error messages?

   • There are a couple of third-party packages that you can use to enhance error messages, including on Python versions older than 3.11. These don’t rely on the improvements that you’ve learned about so far. Instead, they complement those developments, and you can use them to set up an even better debugging workflow for yourself.

   Python 3.11 Preview: Even Better Error Messages – Real Python

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   What is SMTP error code?

   • Base class for all exceptions that include an SMTP error code. These exceptions are generated in some instances when the SMTP server returns an error code. The error code is stored in the smtp_code attribute of the error, and the smtp_error attribute is set to the error message. Sender address refused.

   smtplib — SMTP protocol client — Python 3.13.0 documentation

   docs.python.org/3/library/smtplib.html

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   What are SMTP exceptions?

   • This exception is raised when the server unexpectedly disconnects, or when an attempt is made to use the SMTP instance before connecting it to a server. Base class for all exceptions that include an SMTP error code. These exceptions are generated in some instances when the SMTP server returns an error code.

   smtplib — SMTP protocol client — Python 3.13.0 documentation

   docs.python.org/3/library/smtplib.html

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   Why are Python error messages ambiguous?

   • The technical reason for such ambiguous error messages is that Python internally uses a line in the source code as the reference for each instruction in a program, even though a line can contain several instructions. That changes in Python 3.11. Python 3.11 improves all the error messages from the previous section.

   Python 3.11 Preview: Even Better Error Messages – Real Python

   realpython.com/python311-error-messages/

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8. docs.python.org › 3 › tutorial8. Errors and Exceptions — Python 3.13.0 documentation

   docs.python.org › 3 › tutorial

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   6 days ago · Errors detected during execution are called exceptions and are not unconditionally fatal: you will soon learn how to handle them in Python programs. Most exceptions are not handled by programs, however, and result in error messages as shown here: >>>. >>> 10 * (1/0) Traceback (most recent call last):