Observability & Monitoring

manhole

Debugging UNIX socket connections with stacktraces and interactive prompts.

Status
UnmaintainedNo commits in 783 days.
Last checked
Checked · Oct 12, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Manhole is a Python library that enables debugging through UNIX socket connections. It provides stack traces for all threads and an interactive prompt, making it easier to debug complex applications.

Manhole stands out by offering an interactive debugging experience through UNIX sockets, providing developers with a powerful tool for inspecting and troubleshooting complex applications.

When it fits — and when it doesn’t

A good fit for

  • Developers working on large, multi-threaded Python applications who need detailed debugging information.

  • Teams that require a quick way to inspect and interact with running processes.

Look elsewhere if

  • Projects that do not involve Python or UNIX-based systems

  • Scenarios where real-time interaction is not feasible due to network constraints

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited to UNIX-based systems due to reliance on UNIX sockets

    Manhole uses UNIX socket connections which are not available on Windows without additional software.

  2. 02

    Requires manual setup and configuration for each application

    Documentation lacks detailed step-by-step instructions for integrating Manhole into existing projects.

  3. 03

    Small community and limited third-party support or integrations

    The project has a small number of contributors and limited third-party plugins or integrations available.

  4. 04

    Performance overhead when Manhole is enabled in production environments

    Enabling debugging features can introduce additional latency and resource usage, impacting application performance.

What it does well

  • Debugging through UNIX socket connections

  • Provides stack traces for all threads

  • Interactive prompt for debugging

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

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Set up manhole

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →