icukit-pyicu

ICU is a marvel of engineering, built from years of cooperation across major platforms and the Unicode Consortium, and PyICU exposes much of the functionality in Python. This package includes the libraries and headers from ICU, and provides the PyICU package using it.

Batteries Included ICU and PyICU

PyICU can be hard to install on macOS and Linux because it requires ICU libraries to be installed first. This package bundles source-built ICU with PyICU, so everything installs in one go.

Install

pip install icukit-pyicu

Usage

import icu

t = icu.Transliterator.createInstance("Latin-Cyrillic")
print(t.transliterate("Hello"))  # Хелло

Development and Linkage

icukit-pyicu also bundles the full ICU headers and libraries for use in other projects:

import icukit_pyicu

print(icukit_pyicu.get_include())  # Path to ICU headers
print(icukit_pyicu.get_lib())      # Path to ICU libraries
print(icukit_pyicu.get_bin())      # Path to ICU binaries

It also provides a CLI tool similar to pkg-config:

icukit-config --version   # package version, e.g. 78.3.0
icukit-config --prefix    # install prefix
icukit-config --cflags    # -I<includedir>
icukit-config --libs      # -L<libdir> -licui18n -licuuc -licudata

For example, to compile and link a C++ program against the bundled ICU:

LIBDIR=$(python -c 'import icukit_pyicu; print(icukit_pyicu.get_lib())')
c++ -std=c++17 $(icukit-config --cflags) prog.cpp $(icukit-config --libs) -o prog

The program then needs to find the ICU libraries at run time:

Linux: link with -Wl,-rpath,"$LIBDIR" -Wl,--disable-new-dtags (the --disable-new-dtags makes the rpath apply to ICU's own inter-library dependencies), or set LD_LIBRARY_PATH="$LIBDIR".
macOS: the bundled dylibs use bare install names, so set DYLD_LIBRARY_PATH="$LIBDIR" when running.

Platforms

Wheels are published for:

macOS: ARM64 (Apple Silicon)
Linux: x86_64 and aarch64 (manylinux)
Python: 3.9–3.14

Only these binary wheels are published; there is no source distribution (building requires compiling ICU from source, which the CI pipeline handles). Intel macOS and Windows are not currently targeted. The wheels bundle both the ICU runtime libraries and the full ICU dev headers/libraries, so they are large (tens of MB) by design.

Note on PyICU

This package provides its own icu module. If you have PyICU installed separately, they will conflict. Either uninstall PyICU first, or use a virtual environment:

pip uninstall PyICU
pip install icukit-pyicu

Or with a venv:

python -m venv myenv
source myenv/bin/activate
pip install icukit-pyicu

License

The icukit_pyicu helper code is MIT (see LICENSE).

The published wheels bundle binary distributions of ICU (Unicode-3.0 license, see LICENSE-ICU) and PyICU (MIT). Accordingly the wheel metadata declares the SPDX expression MIT AND Unicode-3.0, and both license files are included in the distribution.

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icukit_pyicu-78.3.0-cp314-cp314-manylinux_2_38_aarch64.manylinux_2_39_aarch64.whl (64.4 MB view details)

Uploaded Jul 7, 2026 CPython 3.14manylinux: glibc 2.38+ ARM64manylinux: glibc 2.39+ ARM64

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icukit_pyicu-78.3.0-cp314-cp314-macosx_11_0_arm64.whl (63.0 MB view details)

Uploaded Jul 7, 2026 CPython 3.14macOS 11.0+ ARM64

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Uploaded Jul 7, 2026 CPython 3.13manylinux: glibc 2.38+ ARM64manylinux: glibc 2.39+ ARM64

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Uploaded Jul 7, 2026 CPython 3.13macOS 11.0+ ARM64

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Uploaded Jul 7, 2026 CPython 3.12manylinux: glibc 2.38+ ARM64manylinux: glibc 2.39+ ARM64

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Uploaded Jul 7, 2026 CPython 3.12macOS 11.0+ ARM64

icukit_pyicu-78.3.0-cp311-cp311-manylinux_2_38_aarch64.manylinux_2_39_aarch64.whl (64.4 MB view details)

Uploaded Jul 7, 2026 CPython 3.11manylinux: glibc 2.38+ ARM64manylinux: glibc 2.39+ ARM64

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Uploaded Jul 7, 2026 CPython 3.11macOS 11.0+ ARM64

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Uploaded Jul 7, 2026 CPython 3.10manylinux: glibc 2.38+ ARM64manylinux: glibc 2.39+ ARM64

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icukit_pyicu-78.3.0-cp39-cp39-manylinux_2_38_aarch64.manylinux_2_39_aarch64.whl (64.4 MB view details)

Uploaded Jul 7, 2026 CPython 3.9manylinux: glibc 2.38+ ARM64manylinux: glibc 2.39+ ARM64

icukit_pyicu-78.3.0-cp39-cp39-manylinux_2_35_x86_64.whl (64.8 MB view details)

Uploaded Jul 7, 2026 CPython 3.9manylinux: glibc 2.35+ x86-64

icukit_pyicu-78.3.0-cp39-cp39-macosx_11_0_arm64.whl (63.0 MB view details)

Uploaded Jul 7, 2026 CPython 3.9macOS 11.0+ ARM64

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icukit-pyicu 78.3.0

icukit-pyicu

Batteries Included ICU and PyICU

Install

Usage

Development and Linkage

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Note on PyICU

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1 maintainer

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