(define-public fwdpy11
  (package
    (name "fwdpy11")
    (version "0.21.6")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "fwdpy11" version))
       (sha256
        (base32 "1mgs7fcda3cr7a7kbnk0x50993131453rlrkq7nv4pxqw53lnrv3"))))
    (build-system cargo-build-system)
    (arguments
      (list
        #:imported-modules `(,@%cargo-build-system-modules
                           ,@%pyproject-build-system-modules)
        #:modules '((guix build cargo-build-system)
                    ((guix build pyproject-build-system) #:prefix py:)
                    (guix build utils))
        #:phases
        #~(modify-phases %standard-phases
            (add-after 'unpack 'chdir-rust
                (lambda _
                  (chdir "rust/fp11rust")))
            (replace 'unpack-rust-crates
                ;; This is to avoid the non-crate source from being erroneously
                ;; unpacked by this phase, causing an error.
                (lambda* (#:key inputs #:allow-other-keys #:rest args)
                  (apply (assoc-ref %standard-phases 'unpack-rust-crates)
                         (append args
                                 (list #:inputs (alist-delete "source" inputs))))))
            (replace 'configure
                (lambda* (#:key inputs #:allow-other-keys #:rest args)
                  (apply (assoc-ref %standard-phases 'configure)
                         (append args
                                 (list #:inputs (alist-delete "source" inputs))))))            
            (delete 'build)
            (delete 'check)
            (delete 'install)
            (delete 'package)
            (add-before 'prepare-python-module 'chdir-root
                        (lambda _ (chdir "../..")))
            (add-after 'prepare-python-module 'build-python-module
              (assoc-ref py:%standard-phases 'build))
            (add-after 'build-python-module 'install-python-module
              (assoc-ref py:%standard-phases 'install))
            (add-after 'install-python-module 'check-python-module
              (lambda* (#:key inputs #:allow-other-keys #:rest args)
                (apply (assoc-ref py:%standard-phases 'check) args)))
            )
        #:cargo-inputs
        `(("rust-autocfg", rust-autocfg-1)
          ("rust-demes", rust-demes-0.5)
          ("rust-demes-forward", rust-demes-forward-0.4)
          ("rust-demes-forward-capi", rust-demes-forward-capi-0.4)
          ("rust-hashbrown", rust-hashbrown-0.12)
          ("rust-indexmap", rust-indexmap-1.8)
          ("rust-itoa", rust-itoa-1)
          ("rust-libc", rust-libc-0.2)
          ("rust-proc-macro2", rust-proc-macro2-1)
          ("rust-quote", rust-quote-1)
          ("rust-regex", rust-regex-1)
          ("rust-regex-syntax", rust-regex-syntax-0.6)
          ("rust-ryu", rust-ryu-1)
          ("rust-serde", rust-serde-1)
          ("rust-serde-derive", rust-serde-derive-1)
          ("rust-serde-yaml", rust-serde-yaml-0.9)
          ("rust-syn", rust-syn-1)
          ("rust-thiserror", rust-thiserror-1)
          ("rust-thiserror-impl", rust-thiserror-impl-1)
          ("rust-unicode-ident", rust-unicode-ident-1)
          ("rust-unsafe-libyaml", rust-unsafe-libyaml-0.2)
          )
      ))
    (native-inputs
     (list python-wrapper
           cmake
           rust-cbindgen
           gsl
           pybind11
           python-wheel
           python-setuptools
           python-setuptools-scm
           python-pytest
           python-pytest-xdist
           python-hypothesis
           python-msprime))
    (propagated-inputs (list python-attrs
                             python-deprecated
                             python-black
                             python-demes
                             python-numpy
                             python-scipy
                             python-tskit))
    (home-page "https://github.com/molpopgen/fwdpy11")
    (synopsis "Forward-time population genetic simulation in Python")
    (description "Forward-time population genetic simulation in Python")
    (license license:gpl3))
)