Package pythonlib

Failed to find a solution:

no platform:
2025-05-16 17:55.07 [INFO] Solving for ocaml-base-compiler,
                           pythonlib, constraints ocaml-base-compiler<=5.3.0,
                           pythonlib=v0.16.0 using opam_repository_commit cf409d95af00ff822422bd76b657ed213b661401

2025-05-16 17:55.08 [INFO] base: eliminated all possibilities in 0.65 s

2025-05-16 17:55.08 [INFO] = base =

2025-05-16 17:55.08 [INFO] Can't find all required versions.
Selected: base-threads.base base-unix.base conf-autoconf.0.2 dune.3.18.2
          ocaml-config.3 ocaml-options-vanilla.1 ocamlfind.1.9.8
          pyml.20231101 stdcompat.20.1 pythonlib&ocaml-base-compiler
          ocaml-variants ocaml-base-compiler ocaml-base-compiler
- base -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      base.v0.17.2: Requires ocaml >= 5.1.0
      base.v0.17.1: Requires ocaml >= 5.1.0
      base.v0.17.0: Requires ocaml >= 5.1.0
      base.v0.16.4: Requires ocaml >= 4.14.0
      base.v0.16.3: Requires ocaml >= 4.14.0
      ...
- core -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      core.v0.17.1: Requires ocaml >= 5.1.0
      core.v0.17.0: Requires ocaml >= 5.1.0 & < 5.2
      core.v0.16.2: Requires ocaml >= 4.14.0
      core.v0.16.1: Requires ocaml >= 4.14.0
      core.v0.16.0: Requires ocaml >= 4.14.0 & < 5.1~
      ...
- expect_test_helpers_core -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      expect_test_helpers_core.v0.17.0: Requires ocaml >= 5.1.0
      expect_test_helpers_core.v0.16.0: Requires ocaml >= 4.14.0
      expect_test_helpers_core.v0.15.0: Incompatible with restriction: >= v0.16 & < v0.17
      expect_test_helpers_core.v0.14.0: Incompatible with restriction: >= v0.16 & < v0.17
- ocaml -> ocaml.4.12.2
    pythonlib v0.16.0 requires >= 4.11.0 & < 4.13.0
- ocaml-base-compiler -> ocaml-base-compiler.5.3.0
    User requested <= 5.3.0
- ocaml-compiler -> (problem)
    ocaml-base-compiler 5.3.0 requires = 5.3.0
    Rejected candidates:
      ocaml-compiler.5.5: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.4: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0: Requires ocaml = 5.3.0
      ocaml-compiler.5.3.0~rc1: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~beta2: Incompatible with restriction: = 5.3.0
      ...
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.5.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+BER: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- ppx_compare -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      ppx_compare.v0.17.0: Requires ocaml >= 5.1.0
      ppx_compare.v0.16.0: Requires ocaml >= 4.14.0
      ppx_compare.v0.15.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_compare.v0.14.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_compare.v0.13.0: Incompatible with restriction: >= v0.16 & < v0.17
      ...
- ppx_expect -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      ppx_expect.v0.17.2: Requires ocaml >= 5.1.0
      ppx_expect.v0.17.1: Requires ocaml >= 5.1.0
      ppx_expect.v0.17.0: Requires ocaml >= 5.1.0
      ppx_expect.v0.16.1: Requires ocaml >= 4.14.0
      ppx_expect.v0.16.0: Requires ocaml >= 4.14.0
      ...
- ppx_here -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      ppx_here.v0.17.0: Requires ocaml >= 5.1.0
      ppx_here.v0.16.0: Requires ocaml >= 4.14.0
      ppx_here.v0.15.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_here.v0.14.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_here.v0.13.0: Incompatible with restriction: >= v0.16 & < v0.17
      ...
- ppx_let -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      ppx_let.v0.17.0: Requires ocaml >= 5.1.0
      ppx_let.v0.16.0: Requires ocaml >= 4.14.0
      ppx_let.v0.15.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_let.v0.14.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_let.v0.13.0: Incompatible with restriction: >= v0.16 & < v0.17
      ...
- ppx_python -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      ppx_python.v0.17.0: Requires ocaml >= 5.1.0
      ppx_python.v0.16.0: Requires ocaml >= 4.14.0
      ppx_python.v0.15.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_python.v0.14.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_python.v0.13.0: Incompatible with restriction: >= v0.16 & < v0.17
      ...
- ppx_string -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      ppx_string.v0.17.0: Requires ocaml >= 5.1.0
      ppx_string.v0.16.0: Requires ocaml >= 4.14.0
      ppx_string.v0.15.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_string.v0.14.1: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_string.v0.14.0: Incompatible with restriction: >= v0.16 & < v0.17
- pythonlib -> pythonlib.v0.16.0
    User requested = v0.16.0
- stdio -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      stdio.v0.17.0: Incompatible with restriction: >= v0.16 & < v0.17
      stdio.v0.16.0: Requires ocaml >= 4.14.0
      stdio.v0.15.0: Incompatible with restriction: >= v0.16 & < v0.17
      stdio.v0.14.0: Incompatible with restriction: >= v0.16 & < v0.17
      stdio.v0.13.0: Incompatible with restriction: >= v0.16 & < v0.17
      ...
- typerep -> (problem)
    pythonlib v0.16.0 requires >= v0.16 & < v0.17
    Rejected candidates:
      typerep.v0.17.1: Incompatible with restriction: >= v0.16 & < v0.17
      typerep.v0.17.0: Incompatible with restriction: >= v0.16 & < v0.17
      typerep.v0.16.0: Requires ocaml >= 4.14.0 & < 5.3
      typerep.v0.15.0: Incompatible with restriction: >= v0.16 & < v0.17
      typerep.v0.14.0: Incompatible with restriction: >= v0.16 & < v0.17
      ...