Python wrapper around the solc Solidity compiler with 0.5.x support.
Forked from py-solc.
This library allows the use of multiple versions of solc, and installs them as needed. You must have all required solc dependencies installed for it to work properly.
Versions >=0.4.11 may be installed, however only versions >=0.4.2 are supported and tested.
Installation
pip install py-solc-xThe first time py-solc-x is imported it will automatically install the latest version of solc. If you wish to install a different version you may do so from within python:
>>> from solcx import install_solc
>>> install_solc('v0.4.25')Or via the command line:
$ python -m solcx.install v0.4.25You can also view available versions or change the active version of solc:
>>> from solcx import get_installed_solc_versions, set_solc_version
>>> get_installed_solc_versions()
['v0.4.25', 'v0.5.3']
>>> set_solc_version('v0.4.25)Use the solcx.compile_standard function to make use of the standard-json compilation feature.
>>> from solcx import compile_standard
>>> compile_standard({
... 'language': 'Solidity',
... 'sources': {'Foo.sol': 'content': "...."},
... })
{
'contracts': {...},
'sources': {...},
'errors': {...},
}
>>> compile_standard({
... 'language': 'Solidity',
... 'sources': {'Foo.sol': 'urls': ["/path/to/my/sources/Foo.sol"]},
... }, allow_paths="/path/to/my/sources")
{
'contracts': {...},
'sources': {...},
'errors': {...},
}>>> from solcx import compile_source, compile_files, link_code
>>> compile_source("contract Foo { function Foo() {} }")
{
'Foo': {
'abi': [{'inputs': [], 'type': 'constructor'}],
'code': '0x60606040525b5b600a8060126000396000f360606040526008565b00',
'code_runtime': '0x60606040526008565b00',
'source': None,
'meta': {
'compilerVersion': '0.3.5-9da08ac3',
'language': 'Solidity',
'languageVersion': '0',
},
},
}
>>> compile_files(["/path/to/Foo.sol", "/path/to/Bar.sol"])
{
'Foo': {
'abi': [{'inputs': [], 'type': 'constructor'}],
'code': '0x60606040525b5b600a8060126000396000f360606040526008565b00',
'code_runtime': '0x60606040526008565b00',
'source': None,
'meta': {
'compilerVersion': '0.3.5-9da08ac3',
'language': 'Solidity',
'languageVersion': '0',
},
},
'Bar': {
'abi': [{'inputs': [], 'type': 'constructor'}],
'code': '0x60606040525b5b600a8060126000396000f360606040526008565b00',
'code_runtime': '0x60606040526008565b00',
'source': None,
'meta': {
'compilerVersion': '0.3.5-9da08ac3',
'language': 'Solidity',
'languageVersion': '0',
},
},
}
>>> unlinked_code = "606060405260768060106000396000f3606060405260e060020a6000350463e7f09e058114601a575b005b60187f0c55699c00000000000000000000000000000000000000000000000000000000606090815273__TestA_________________________________90630c55699c906064906000906004818660325a03f41560025750505056"
>>> link_code(unlinked_code, {'TestA': '0xd3cda913deb6f67967b99d67acdfa1712c293601'})
... "606060405260768060106000396000f3606060405260e060020a6000350463e7f09e058114601a575b005b60187f0c55699c00000000000000000000000000000000000000000000000000000000606090815273d3cda913deb6f67967b99d67acdfa1712c29360190630c55699c906064906000906004818660325a03f41560025750505056"solc provides path aliasing allow you to have more reusable project configurations.
You can use this like:
>>> from solcx import compile_source, compile_files, link_code
>>> compile_files([source_file_path], import_remappings=["zeppeling=/my-zeppelin-checkout-folder"])More information about solc import aliasing
This project was recently forked from py-solc and should be considered a beta. Comments, questions, criticisms and pull requests are welcomed.
Tests have not been updated from py-solc and will likely fail.
You can run the tests with:
py.test testsOr you can install tox to run the full test suite.
This project is licensed under the MIT license.