py-solc-x
Python wrapper and version management tool for the solc Solidity compiler.
Decision gist · record as of 2026-08-14
Yes. Low install friction, active maintenance, no known vulnerabilities, and permissive MIT licensing make this a straightforward choice for Python projects that need Solidity compilation. Install it if you're building Ethereum tooling in Python and need compiler version flexibility.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Compiling from source requires system-level solc build dependencies; prebuilt binaries are available for Linux, macOS, and Windows.
- Low friction install with only two lightweight runtime dependencies (requests and packaging).
- Actively maintained with stable production status.
License · maintenance · safety
MIT (permissive) — MIT license permits free use, modification, and distribution with minimal restrictions, making it suitable for both open-source and commercial projects.
last release 2025-12-10 (247 days) · last repo commit 2026-05-08 · 143 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 222,485 downloads/mo, #9,263 on PyPI
Alternatives
Verify before relying
pip install py-solc-x
from py_solc_x import compile_standard
compile_standard({"language": "Solidity", "sources": {...}})- Whether prebuilt solc binaries are automatically downloaded or require manual setup.
- Performance characteristics when switching between multiple installed solc versions.
- Specific Solidity versions beyond >=0.4.11 that are actively tested and supported.
What it is and what it does
py-solc-x is a Python wrapper around the Solidity compiler that handles both installation and invocation of solc. It lets you install and manage multiple versions of the compiler on your system, then call them from Python code to compile Solidity smart contracts. The package abstracts away platform-specific compiler setup—handling downloads and builds for Linux, macOS, and Windows—so you can focus on compilation logic rather than toolchain management.
The package is commonly used in Ethereum development workflows where Python tools need to compile Solidity code as part of a build or test pipeline. It depends on requests and packaging for downloading compiler binaries and version parsing, keeping the dependency footprint minimal. The project is actively maintained and supports Python 3.8, 3.9, 3.10, and 3.11.
Use it for
- Compile Solidity smart contracts from within a Python test suite or build script without manual compiler installation.
- Manage multiple Solidity compiler versions in a single development environment for testing contract compatibility.
- Automate Solidity compilation as part of a Python-based Ethereum development framework or CI/CD pipeline.
- Build Python tools for Ethereum that need to compile contracts on-the-fly without requiring users to install solc separately.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Low install friction, active maintenance, no known vulnerabilities, and permissive MIT licensing make this a straightforward choice for Python projects that need Solidity compilation. Install it if you're building Ethereum tooling in Python and need compiler version flexibility.
Install
py-solc-x on PyPI
Before you install
Low friction install with only two lightweight runtime dependencies (requests and packaging). Actively maintained with stable production status.
Compiling from source requires system-level solc build dependencies; prebuilt binaries are available for Linux, macOS, and Windows.
License in practice
MIT license permits free use, modification, and distribution with minimal restrictions, making it suitable for both open-source and commercial projects.
Quickstart
pip install py-solc-x
from py_solc_x import compile_standard
compile_standard({"language": "Solidity", "sources": {...}})Verify before relying
- Whether prebuilt solc binaries are automatically downloaded or require manual setup.
- Performance characteristics when switching between multiple installed solc versions.
- Specific Solidity versions beyond >=0.4.11 that are actively tested and supported.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release <4,>=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagesrequestspackaging |
| Maintenance | Actively maintained 247 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 222,485 / month, #9,263 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseNatural Language :: EnglishOperating System :: MacOSOperating System :: POSIXProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9 |
Evidence: py_solc_x-2.0.5-py3-none-any.whl
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