Principle:TA Lib Ta lib python Version Compatibility

Knowledge Sources	TA-Lib Python README
Domains	Installation, Version_Management
Last Updated	2026-02-09 22:00 GMT

Overview

A version compatibility matrix that maps Python wrapper versions to required TA-Lib C library versions and supported Python versions.

Description

The TA-Lib Python wrapper maintains three active version branches (0.4.x, 0.5.x, 0.6.x), each requiring a specific minimum version of the underlying TA-Lib C library. Choosing the correct version combination is the first step in installation.

Version compatibility:

• 0.6.x — Requires TA-Lib C >= 0.6.0, Python >= 3.9
• 0.5.x — Requires TA-Lib C >= 0.5.0
• 0.4.x — Works with TA-Lib C 0.4.0 (legacy)

The current version is 0.6.9 (as of this writing).

Usage

Check the version compatibility table before installation. Ensure the TA-Lib C library version matches the Python wrapper version you intend to install.

Theoretical Basis

Version compatibility is determined by the C API contract:

# Version compatibility check (abstract)
# Python wrapper calls C functions that may not exist in older C versions
# e.g., 0.6.x wrapper uses TA-Lib C 0.6+ functions (IMI indicator, etc.)

Key version identifiers:

• Python wrapper: talib.__version__ (e.g., '0.6.9')
• C library: talib.__ta_version__ (returned by C's TA_GetVersionString)
• Python: >= 3.9 required (per pyproject.toml)

Related Pages

Implemented By

• Implementation:TA_Lib_Ta_lib_python_Version_Selection_Guide