Testing · head to head
pytest vs Steampipe
pytest
Testing
Python testing framework maintained by an independent core team funded partly through Tidelift
- From
- Free
- Rated
- -
Steampipe
Developer Tools
Query cloud APIs, SaaS tools and code with SQL, with no extract or load step
- From
- Free
- Rated
- -
The short version
- Each has a real cost: pytest there is no corporate owner or dedicated support organisation, so response time on bugs or security issues depends on volunteer maintainer availability unless a Tidelift subscription is purchased separately.; Steampipe aGPL-3.0 across all four engines is a procurement blocker at organisations that ban the licence outright, and the network clause reaches any internal portal or service that puts a web interface in front of it.
- They diverge on capability: pytest covers Assert-based test syntax, Steampipe covers SQL over live APIs.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which pytest and Steampipe actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in pytest
- Assert-based test syntax
- Fixture system
- Parametrised testing
- Plugin ecosystem
- Detailed assertion introspection
- Test discovery
Only in Steampipe
- SQL over live APIs
- Wide plugin set
- Embedded Postgres
- Compliance benchmarks
- Joins across providers
- Hosted option
What people use each for
The jobs each tool is most often brought in to do.
pytest
- A Python team moving off the standard library's unittest module for a less verbose, fixture-driven testing stylenot Steampipe
- A project needing parametrised tests to cover many input combinations without duplicating test codenot Steampipe
- A team wanting a large plugin ecosystem for coverage, async testing or Django-specific test supportnot Steampipe
- An organisation wanting a commercial support and maintenance assurance layer via a Tidelift subscription rather than relying purely on community response timesnot Steampipe
Steampipe
- Security teams answering posture questions against live cloud accounts rather than a nightly exportnot pytest
- Compliance evidence gathering where the answer must reflect the account at the moment it is askednot pytest
- Inventory and drift questions spanning several cloud providers in one querynot pytest
- Engineers who would rather write SQL than learn each provider command line toolnot pytest
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
pytest
- There is no corporate owner or dedicated support organisation, so response time on bugs or security issues depends on volunteer maintainer availability unless a Tidelift subscription is purchased separately.
- The plugin ecosystem's quality and maintenance level varies widely between plugins, and a team building a workflow around several plugins takes on the risk of any one of them going unmaintained.
- Its assert-rewriting magic, while convenient, can behave unexpectedly in edge cases involving custom assert helpers, which occasionally confuses developers used to explicit assertion methods.
- Large test suites with many fixtures can develop hard-to-trace fixture dependency chains, since fixtures can depend on other fixtures in ways that are not always obvious from a single test file.
- Being free and volunteer-maintained, roadmap direction is set by contributor consensus rather than a company with commercial incentive to prioritise enterprise-requested features quickly.
Steampipe
- AGPL-3.0 across all four engines is a procurement blocker at organisations that ban the licence outright, and the network clause reaches any internal portal or service that puts a web interface in front of it.
- Dashboards, benchmarks and mods were removed from Steampipe entirely at version 1.0 in October 2024 and now live in a separate product, so pre-2024 documentation and tutorials describe commands that no longer exist.
- Live querying is bound by cloud provider API rate limits and keeps no persistent store by default, which is why a separate DuckDB-backed product exists for log volumes and why large accounts return slowly.
- The company is fifteen people and bootstrapped, maintaining four command line tools plus a hosted service plus two further products, and the newer tools have thin community traction relative to that surface area.
- Hosted tiers include only three users regardless of tier, with additional Enterprise users charged separately, so a team of thirty costs an order of magnitude more than the headline figure before compute and storage are counted.
Pricing, plan by plan
pytest
Free- pytestFree
- Full functionality, no usage limits
- Community support via GitHub
- Optional Tidelift subscription for a commercial support and licence assurance layer
Steampipe
Free- Steampipe CLIFree
- AGPL-3.0
- All plugins
- No user or query limits
- Pipes DeveloperFree
- One user
- 400 compute minutes
- 3GB storage
- Pipes Team$49/month
- Three users
- 2,000 compute minutes
- 20GB storage
- Pipes Enterprise$249/month
- Three users
- 10,000 compute minutes
- 100GB storage
Which should you pick?
Choose pytest if
- You need assert-based test syntax.
- You want to start without paying.
- You work on Linux, macOS, Windows.
- You also want fixture system.
Choose Steampipe if
- You need sql over live apis.
- You want to start without paying.
- You work on macOS, Linux, Windows, Docker, Web.
- You also want wide plugin set.
Questions people ask
- Is pytest or Steampipe better?
- Neither clearly leads. pytest starts at Free and Steampipe at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, pytest or Steampipe?
- pytest starts at Free and Steampipe at Free.
- Does pytest or Steampipe run on more platforms?
- pytest runs on Linux, macOS, Windows. Steampipe runs on macOS, Linux, Windows, Docker, Web.
- Can I use pytest for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is pytest best used for?
- pytest is most often used for a python team moving off the standard library's unittest module for a less verbose, fixture-driven testing style, a project needing parametrised tests to cover many input combinations without duplicating test code, a team wanting a large plugin ecosystem for coverage, async testing or django-specific test support, an organisation wanting a commercial support and maintenance assurance layer via a tidelift subscription rather than relying purely on community response times. Of those, a python team moving off the standard library's unittest module for a less verbose, fixture-driven testing style and a project needing parametrised tests to cover many input combinations without duplicating test code are not what Steampipe is typically brought in for.
- What can pytest do that Steampipe cannot?
- pytest covers Assert-based test syntax, Fixture system, Parametrised testing, Plugin ecosystem. Steampipe covers SQL over live APIs, Wide plugin set, Embedded Postgres, Compliance benchmarks.
Answered from the vendors’ own pages
pytest: Is pytest owned by a company?
No, it is maintained by the pytest-dev volunteer community with no single corporate parent; some maintainers receive partial funding through Tidelift subscriptions.
Steampipe: When did Steampipe become AGPL?
May 2021, about four months after the project went public. It is a settled licence rather than a recent change, and predates the Business Source Licence wave it is often confused with.
pytest: Is there a paid version?
No, pytest itself is free and open source; buyers can optionally pay for a Tidelift subscription for commercial assurance and support.
Steampipe: Where did the dashboards and benchmarks go?
Into Powerpipe. They were deprecated in March 2024 and removed from Steampipe at version 1.0 in October 2024, so the check, dashboard, mod and variable commands are gone.
pytest: Does it replace the standard library unittest module?
It does not replace unittest at the language level, but it is now the de facto standard choice for most Python projects over unittest's more verbose syntax.
Steampipe: Is it fast on a large cloud estate?
Not always. Queries call provider APIs at request time, so rate limits rather than query planning set the pace, and there is no persistent store by default.
Steampipe: Does the AGPL affect internal use?
Running it internally for your own analysis is fine. Putting a web interface in front of it that other people use is where the network clause becomes a question for your legal team.
Steampipe: Is a bootstrapped vendor a risk?
It cuts both ways. There is no investor pressure toward a licence change or an exit, and there are also fifteen people supporting a large product surface.
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