session-info

1.0.1 · active · verified Sat Apr 11

The `session-info` Python library (module name `session_info`) provides a simple way to output version information for modules loaded in the current session, Python interpreter, operating system, and CPU. It aims to improve reproducibility, especially in interactive environments like Jupyter notebooks. The current version is 1.0.1, released in May 2021, suggesting an infrequent release cadence for this specific package.

Warnings

breaking The package was renamed from `sinfo` to `session-info` (with the primary module becoming `session_info`). While the old `sinfo` PyPI package is kept for backward compatibility, new features and bug fixes are only applied to `session-info`. Users should migrate to the new package.
Fix: Uninstall `sinfo` and install `session-info` using `pip install session-info`. Update imports from `from sinfo import sinfo` to `import session_info` and function calls from `sinfo()` to `session_info.show()`.
gotcha By default, `session_info.show()` only lists third-party packages. Standard library modules (e.g., `math`, `os`) are omitted from the output.
Fix: To include standard library modules in the output, call `session_info.show(std_lib=True)`.
gotcha The `session_info.show()` function, by default, only lists explicitly imported top-level modules. It does not automatically show their internal or recursive dependencies.
Fix: To include not only explicitly imported modules but also their dependencies, use `session_info.show(dependencies=True)`.
gotcha When used within a Jupyter Notebook, `session_info.show()` renders its output with HTML formatting by default. If plain text output is preferred, this needs to be explicitly specified.
Fix: To obtain plain text output in Jupyter Notebooks, use `session_info.show(html=False)`.
gotcha This specific `session-info` package (v1.0.1) does not provide a direct function to save its output to a file (e.g., `to_file()`). Users often expect this functionality for sharing or logging.
Fix: To save the output, you typically need to redirect standard output in your script (e.g., using `contextlib.redirect_stdout`) or capture the output of `session_info.show()` and write it to a file manually.
gotcha There is a similarly named, more recently updated Python package called `session-info2` (latest v0.4, Feb 2026). It uses a different import pattern (`from session_info2 import session_info`). Ensure you install and import the correct package if aiming for `session-info` (v1.0.1).
Fix: Always explicitly `pip install session-info` and use `import session_info` for this library. If you intend to use the newer library, install `session-info2` and use `from session_info2 import session_info`.

Install

pip install session-info PyPI
conda install -c conda-forge session-info Conda

Imports

session_info
```
import session_info
```
The package installs a module named `session_info`, which is then imported directly.

Quickstart

This quickstart demonstrates the basic use of `session_info.show()` to print environmental and module version details. It also highlights common optional arguments like `std_lib` to include standard library modules and `dependencies` to show sub-dependencies.

import pandas
import numpy
import session_info

# Basic usage to show loaded third-party modules, Python, and OS info
session_info.show()

# To include standard library modules (e.g., 'math')
# import math
# session_info.show(std_lib=True)

# To include recursive dependencies of imported modules
# session_info.show(dependencies=True)

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