Simple & fast IO for SEG-Y files
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Author: Equinor ASA
Requires Python: >=3.10
Classifiers
Development Status
- 5 - Production/Stable
Environment
- Other Environment
Intended Audience
- Developers
- Science/Research
Natural Language
- English
Programming Language
- Python
- Python :: 3.10
- Python :: 3.11
- Python :: 3.12
- Python :: 3.13
- Python :: 3.14
Topic
- Scientific/Engineering
- Scientific/Engineering :: Physics
- Software Development :: Libraries
- Utilities
======= SEGY IO
Introduction
Segyio is a small LGPL licensed C library for easy interaction with SEG Y formatted seismic data, with language bindings for Python and Matlab. Segyio is an attempt to create an easy-to-use, embeddable, community-oriented library for seismic applications. Features are added as they are needed; suggestions and contributions of all kinds are very welcome.
Feature summary
- A low-level C interface with few assumptions; easy to bind to other languages.
- Read and write binary and textual headers.
- Read and write traces, trace headers.
- Easy to use and native-feeling python interface with numpy integration.
Project goals
Segyio does necessarily attempt to be the end-all of SEG-Y interactions; rather, we aim to lower the barrier to interacting with SEG-Y files for embedding, new applications or free-standing programs.
Additionally, the aim is not to support the full standard or all exotic (but correctly) formatted files out there. Some assumptions are made, such as:
- All traces in a file are assumed to be of the same sample size.
- It is assumed all lines have the same number of traces.
The writing functionality in Segyio is largely meant to modify or adapt files. A file created from scratch is not necessarily a to-spec SEG-Y file, as we only necessarily write the header fields segyio needs to make sense of the geometry. It is still highly recommended that SEG-Y files are maintained and written according to specification, but segyio does not mandate this.
2.0.0a1
Dec 02, 2025
1.9.14
Dec 02, 2025
1.9.13
Feb 04, 2025
1.9.12
Nov 29, 2023
1.9.11
Mar 28, 2023
1.9.10
Dec 21, 2022
1.9.9
Feb 18, 2022
1.9.7
Aug 13, 2021
1.9.6
Feb 19, 2021
1.9.5
Dec 14, 2020
1.9.4
Dec 11, 2020
1.9.3
Oct 01, 2020
1.9.2
Sep 29, 2020
1.9.2b1
May 22, 2020
1.9.1
Mar 13, 2020
1.9.1a1
Mar 12, 2020
1.9.0
Dec 06, 2019
1.9.0a1
May 19, 2019
1.8.9
Jan 16, 2020
1.8.8
Sep 23, 2019
1.8.6
Apr 19, 2019
1.8.5
Apr 19, 2019
1.8.4
Apr 13, 2019
1.8.3
Dec 23, 2018
1.8.2
Dec 19, 2018
1.8.1
Dec 19, 2018
1.8.0
Dec 17, 2018
1.8.0b1
Nov 29, 2018
1.8.0a1
Nov 05, 2018
1.7.1
Oct 15, 2018
1.7.0
Sep 26, 2018
1.6.0
Jun 05, 2018
1.5.3
Apr 19, 2018
1.5.2
Mar 19, 2018
1.5.2b1
Mar 19, 2018
1.5.1
Feb 07, 2018
1.4.1a1
Jan 24, 2018
1.4.0
Jan 16, 2018
1.4b3
Jan 04, 2018
1.4b2
Jan 04, 2018
1.4b1
Dec 13, 2017
1.3.9
Jan 05, 2018
1.3.8
Nov 25, 2017
1.3.7
Nov 21, 2017
1.3.6
Nov 21, 2017
1.3.5
Nov 15, 2017
1.3.4
Nov 13, 2017
1.3.3
Sep 07, 2017
1.3.2
Aug 26, 2017
1.3.1
Aug 22, 2017
1.3.0
Aug 16, 2017
1.2.0
Jun 28, 2017
1.1.0
Jun 09, 2017
1.0.8
Apr 28, 2017
1.0.6
Apr 24, 2017
1.0.4.1
Mar 23, 2017
1.0.4
Mar 23, 2017
1.0.3
Oct 28, 2016
1.0.2
Oct 15, 2016
0.0.0
Sep 23, 2019
Wheel compatibility matrix
Files in release
segyio-1.9.14-cp310-cp310-macosx_10_9_x86_64.whl (89.3KiB)
segyio-1.9.14-cp310-cp310-macosx_11_0_arm64.whl (88.0KiB)
segyio-1.9.14-cp310-cp310-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl (92.2KiB)
segyio-1.9.14-cp310-cp310-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (90.5KiB)
segyio-1.9.14-cp310-cp310-manylinux_2_26_i686.manylinux_2_28_i686.whl (91.6KiB)
segyio-1.9.14-cp310-cp310-win32.whl (88.0KiB)
segyio-1.9.14-cp310-cp310-win_amd64.whl (92.0KiB)
segyio-1.9.14-cp311-cp311-macosx_10_9_x86_64.whl (119.0KiB)
segyio-1.9.14-cp311-cp311-macosx_11_0_arm64.whl (116.5KiB)
segyio-1.9.14-cp311-cp311-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl (126.7KiB)
segyio-1.9.14-cp311-cp311-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (123.3KiB)
segyio-1.9.14-cp311-cp311-manylinux_2_26_i686.manylinux_2_28_i686.whl (125.6KiB)
segyio-1.9.14-cp311-cp311-win32.whl (114.7KiB)
segyio-1.9.14-cp311-cp311-win_amd64.whl (122.7KiB)
segyio-1.9.14-cp312-cp312-macosx_10_13_x86_64.whl (148.6KiB)
segyio-1.9.14-cp312-cp312-macosx_11_0_arm64.whl (145.0KiB)
segyio-1.9.14-cp312-cp312-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl (161.3KiB)
segyio-1.9.14-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (156.2KiB)
segyio-1.9.14-cp312-cp312-manylinux_2_26_i686.manylinux_2_28_i686.whl (159.8KiB)
segyio-1.9.14-cp312-cp312-win32.whl (141.5KiB)
segyio-1.9.14-cp312-cp312-win_amd64.whl (153.5KiB)
segyio-1.9.14-cp313-cp313-macosx_10_13_x86_64.whl (178.2KiB)
segyio-1.9.14-cp313-cp313-macosx_11_0_arm64.whl (173.4KiB)
segyio-1.9.14-cp313-cp313-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl (195.8KiB)
segyio-1.9.14-cp313-cp313-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (189.1KiB)
segyio-1.9.14-cp313-cp313-manylinux_2_26_i686.manylinux_2_28_i686.whl (193.9KiB)
segyio-1.9.14-cp313-cp313-win32.whl (168.3KiB)
segyio-1.9.14-cp313-cp313-win_amd64.whl (184.2KiB)
segyio-1.9.14-cp314-cp314-macosx_10_15_x86_64.whl (207.9KiB)
segyio-1.9.14-cp314-cp314-macosx_11_0_arm64.whl (201.9KiB)
segyio-1.9.14-cp314-cp314-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl (230.4KiB)
segyio-1.9.14-cp314-cp314-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (222.0KiB)
segyio-1.9.14-cp314-cp314-manylinux_2_26_i686.manylinux_2_28_i686.whl (228.1KiB)
segyio-1.9.14-cp314-cp314-win32.whl (199.7KiB)
segyio-1.9.14-cp314-cp314-win_amd64.whl (219.3KiB)
segyio-1.9.14-cp314-cp314t-macosx_10_15_x86_64.whl (237.7KiB)
segyio-1.9.14-cp314-cp314t-macosx_11_0_arm64.whl (230.6KiB)
segyio-1.9.14-cp314-cp314t-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl (265.3KiB)
segyio-1.9.14-cp314-cp314t-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (255.0KiB)
segyio-1.9.14-cp314-cp314t-manylinux_2_26_i686.manylinux_2_28_i686.whl (262.4KiB)
segyio-1.9.14-cp314-cp314t-win32.whl (227.6KiB)
segyio-1.9.14-cp314-cp314t-win_amd64.whl (251.2KiB)
Extras:
None
Dependencies:
numpy
(>=1.10)