Registry / observability / session-info2

session-info2

library0.4.1pypypi✓ verified 87d ago

Session Info 2 is a Python library that prints detailed version information for all currently imported packages and system details, useful for debugging and reproducibility. It's an improved successor to the original `session-info` library. The current version is 0.4.1, with releases occurring every few months to add features and improvements.

observability

pip install session-info2

github ↗package ↗docs ↗

INSTALL

IMPORT

SIG · SESSION-INFO2

session-info2

observabilitypythonv0.4.1

Install

1.5s avg

Import

—

Disk

15MB

Pass rate

8/ 10

Env Coverage8 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.4.1 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

glibc

py 3.10

✓ —

✓ 1.5s

py 3.11

✓ —

✓ 1.55s

py 3.12

✓ —

✓ 1.45s

py 3.13

✓ —

✓ 1.48s

py 3.9

✕ build_error

15MB installed

● package 15MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

SessionInfo

✓ from session_info2 import SessionInfo

✗ from session_info import show

The most common way to use `session-info2` is to simply call `session_info.show()`. This will print a comprehensive summary of your Python environment, including package versions and system details, directly to the console. As of v0.4, you can also use the `.format()` method on the returned object for specific output types.

import session_info # Print session information to stdout session_info.show() # To get formatted output (e.g., markdown) in v0.4+ # result = session_info.show(display_mode='text') # captures string for earlier versions # print(result) # In v0.4+, you can also chain .format() # print(session_info.show().format('markdown'))

Debug

Known issues

gotchaThis library (`session-info2`) is a distinct successor to the original `session-info` package. While the primary import module is similar (`session_info`), their implementations and features differ. Ensure you install `session-info2` if you intend to use the newer features and improved package discovery.

fix

Confirm you have installed `session-info2` (and not `session-info`) using `pip show session-info2`. If migrating, be aware of behavioral changes.

affects: All versions

breakingIn version 0.1.2, the default output format for `session_info.show()` changed from JSON to plain text (or rich terminal output). If your scripts relied on parsing JSON directly from the default output, you now need to explicitly specify `session_info.show(display_mode='json')`.

fix

For JSON output, call `session_info.show(display_mode='json')` or, for v0.4+, `print(session_info.show().format('json'))`.

affects: >=0.1.2

gotchaThe `.format('markdown' | 'html' | ...)` method was introduced in v0.4. If you are on an older version and need formatted output, you must use the `display_mode` argument directly, e.g., `session_info.show(display_mode='markdown')`.

fix

Upgrade to `session-info2>=0.4` to use the `.format()` method, or use `session_info.show(display_mode='...')` for older versions.

affects: <0.4

Upgrade

Version history

0.4.1latest on PyPI · released Apr 8, 2026

Audit

Dependencies

No dependency data recorded yet.

Agent activity

20 hits · last 30 days

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OpenAI (training)

Resources

githubhttps://github.com/flying-sheep/session-info2 ↗

packagehttps://pypi.org/project/session-info2/ ↗

docshttps://session-info2.readthedocs.io/ ↗