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Building IronPython3

To build IronPython3 you will need the .NET SDK (minimum v6.0.100).

See Getting the Sources for information on getting the source for IronPython3.

Building from Visual Studio

Visual Studio 2022 v17.0 or above is required to build IronPython3.

  • Open the IronPython.sln solution file
  • Select the configuration options (Release, Debug, etc.)
  • Press Ctrl+Shift+B or F6 to build the solution

Building from the command line

IronPython3 uses PowerShell to run the build and testing from the command line. You can either use a PowerShell directly, or prefix the commands below with powershell on Windows, or pwsh on Linux/macOS.

On Linux/macOS you will need to install PowerShell

Change the working directory to the path where you cloned the sources and run ./make.ps1

By default, with no options, make.ps1 will build the Release mode binaries. If you would like to build Debug binaries, you can run ./make.ps1 debug

Other options available for make.ps1 are

-configuration (debug/release)   The configuration to build for
-platform (x86/x64)              The platform to use in running tests
-runIgnored                      Run tests that are marked as ignored in the .ini manifests
-frameworks                      A comma separated list of frameworks to run tests for
                                 (use nomenclature as is used in msbuild files for TargetFrameworks)

There are also other targets available for use with packaging and testing, most come in debug and release (default) versions, such as package-debug and package

package                         Creates packages supported by the current platform
stage                           Stages files ready for packaging
test-*                          Runs tests from `all` categories, `ironpython` specific tests,
                                `cpython` tests from the CPython stdlib test suite

If the build is successful the binaries are stored in ironpython3/bin/{Configuration}/{TargetFramework}.

Running

The standard library is not copied over to the bin folder during the build process, it lives in Src/StdLib/Lib.

  • When running the Release configuration executable, you should set the environment variable IRONPYTHONPATH to this folder.
  • When running the Debug configuration executable, this folder is automatically added to sys.path.