kaldi-python-io
A pure python IO interface for data accessing in kaldi
Decision gist · record as of 2026-08-14
No. The package is abandoned (no updates since 2021), has high install friction due to undocumented Kaldi system dependencies, and offers no clear path to working with current Kaldi or Python versions. Unless you are maintaining legacy code that already depends on it, consider using Kaldi's native Python bindings or alternative speech-processing libraries with active maintenance.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Kaldi to be installed and configured on the system; the package is a Python wrapper around Kaldi binaries, not a standalone library.
- High install friction: the package is abandoned (last release 2021-03-18, no activity for 1975 days) and has no runtime dependencies listed, suggesting it may require external Kaldi libraries or system configuration not captured in PyPI metadata.
License · maintenance · safety
Apache V2.0 (permissive) — Licensed under Apache V2.0 (permissive), allowing commercial and private use with minimal restrictions, though the abandoned status means no ongoing legal or security maintenance.
last release 2021-03-18 (1975 days) · last repo commit 2021-03-18 · 39 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 578,980 downloads/mo, #5,921 on PyPI
Alternatives
Verify before relying
pip install kaldi-python-io
from kaldi_python_io import ArchiveReader
ark_reader = ArchiveReader("copy-feats ark:foo.ark ark:- |")
for key, value in ark_reader:
print(key)- Whether Kaldi system libraries must be installed separately and how to configure them
- Whether the package works with current Kaldi versions or only legacy releases
- Actual runtime dependencies not reflected in PyPI metadata
What it is and what it does
kaldi-python-io is a Python wrapper that provides access to Kaldi's native data formats—binary archives (.ark), script files (.scp), and neural network training examples (.egs)—without requiring direct interaction with Kaldi's command-line tools. It offers reader and writer classes for sequential and random-access patterns, making it useful for machine learning pipelines that depend on Kaldi's feature extraction or alignment output.
The package has been abandoned since March 2021 and receives no maintenance. It requires Python 3.6 or later and depends on an external Kaldi installation. The lack of runtime dependencies in PyPI suggests it wraps compiled Kaldi binaries or relies on system-level configuration, which may complicate setup and limit compatibility with newer Kaldi versions.
Use it for
- Load pre-computed Kaldi features or alignments into Python for downstream machine learning model training
- Write feature matrices to Kaldi archive format for integration with Kaldi-based speech processing pipelines
- Read Kaldi nnet3 training examples (.egs) for neural network training without re-implementing Kaldi's serialization
- Iterate over large Kaldi archives sequentially to avoid loading entire datasets into memory
- Access random entries in Kaldi script files for validation or debugging speech recognition experiments
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No.
The package is abandoned (no updates since 2021), has high install friction due to undocumented Kaldi system dependencies, and offers no clear path to working with current Kaldi or Python versions. Unless you are maintaining legacy code that already depends on it, consider using Kaldi's native Python bindings or alternative speech-processing libraries with active maintenance.
Install
kaldi-python-io on PyPI
Before you install
High install friction: the package is abandoned (last release 2021-03-18, no activity for 1975 days) and has no runtime dependencies listed, suggesting it may require external Kaldi libraries or system configuration not captured in PyPI metadata.
Requires Kaldi to be installed and configured on the system; the package is a Python wrapper around Kaldi binaries, not a standalone library.
License in practice
Licensed under Apache V2.0 (permissive), allowing commercial and private use with minimal restrictions, though the abandoned status means no ongoing legal or security maintenance.
Quickstart
pip install kaldi-python-io
from kaldi_python_io import ArchiveReader
ark_reader = ArchiveReader("copy-feats ark:foo.ark ark:- |")
for key, value in ark_reader:
print(key)Verify before relying
- Whether Kaldi system libraries must be installed separately and how to configure them
- Whether the package works with current Kaldi versions or only legacy releases
- Actual runtime dependencies not reflected in PyPI metadata
Package facts
| License | Apache V2.0 permissive |
| Python support | Supports the current Python release >=3.6 |
| Install friction | High. Source build required |
| Runtime dependencies | None |
| Maintenance | Abandoned 1,975 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 578,980 / month, #5,921 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
Evidence: kaldi-python-io-1.2.2.tar.gz
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See also kaldiio · kaldialign · kaldifst · pyorc · arpy · ar · rarfile · pymatreader · model-archiver · kaldi-native-fbank