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msgfy

msgfy is a Python library for convert Exception instance to a human-readable error message.

msgfy v0.2.1 549.1K downloads/30d#6,057 on PyPI4
Permissive license MIT License DORMANT released

What it is and what it does

msgfy is a lightweight utility that transforms Python Exception instances into formatted text strings suitable for logging, display, or debugging. It provides two main functions: to_error_message() for standard error output and to_debug_message() for detailed debug context. Both accept optional format templates using keywords like {exception}, {file_name}, {line_no}, {func_name}, and {error_msg} to customize the output layout.

The package has no external dependencies and supports Python 3.7 through 3.11 on CPython and PyPy. It is useful when you need consistent, readable exception formatting across a codebase without building custom exception handlers. The library is stable but dormant—last updated 2023-09-17 with no recent maintenance activity.

Use it for:

  • Format exceptions for structured logging systems that require consistent message templates.
  • Generate user-friendly error messages from exceptions while hiding internal stack details.
  • Build debug output that includes file, line, and function context extracted from exception metadata.
  • Standardize exception-to-string conversion across a codebase without duplicating formatting logic.

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Converts Python Exception instances into formatted, human-readable error messages with customizable templates and optional debug context.

Yes, if you need simple, templated exception formatting with no dependencies. The package is stable, permissively licensed, and has low install friction. However, maintenance is dormant—no updates since 2023-09-17—so it is best suited for projects that do not require ongoing support or new features.

Install

msgfy on PyPI

pip

pip install msgfy

uv

uv add msgfy

poetry

poetry add msgfy

Installing msgfy

Before you install

Low friction install with no runtime dependencies. Maintenance is dormant—last release was 2023-09-17 with no commits since—but the package is stable.

License in practice

MIT License permits unrestricted use, modification, and distribution with only attribution required.

Quickstart

pip install msgfy

import msgfy

try:
    raise ValueError("example message")
except ValueError as e:
    print(msgfy.to_error_message(e))
    print(msgfy.to_error_message(e, "{exception} {func_name}: {error_msg}"))

Requires Python 3.7 or later.

Verify before relying

  • Whether custom format keywords beyond the documented five are supported.
  • Performance characteristics when formatting large exception chains or deeply nested tracebacks.

Package facts

License MIT License (permissive)
Python support supports the current Python release (>=3.7)
Install friction low — pure-Python wheel
Runtime dependencies none
Maintenance dormant — 1,062 days since the last release
Last repo commit
First released
Downloads 549,145/month — #6,057 on PyPI (30-day window, as of 2026-08-14)
Known vulnerabilities none known (OSV.dev, checked 2026-08-14)

Evidence: msgfy-0.2.1-py3-none-any.whl

Keywords: error

Development Status :: 4 - BetaIntended Audience :: DevelopersIntended Audience :: Information TechnologyLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyTopic :: Software Development :: LibrariesTopic :: Software Development :: Libraries :: Python ModulesTopic :: Text ProcessingTyping :: Typed

Tags

exception to error messageformat exception outputpython error message formatterexception string conversiondebug message from exceptionexception formatting library
exception-handlinglogging-utility

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