Revision 25a6567e26e61e635ed6e84c02eccc988579c8f5 authored by Sylvain Ribstein on 07 September 2022, 07:23:08 UTC, committed by Marge Bot on 12 September 2022, 08:36:23 UTC
1 parent a86a09b
pyinit.ml
(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* Copyright (c) 2018 Nomadic Labs. <contact@nomadic-labs.com> *)
(* *)
(* Permission is hereby granted, free of charge, to any person obtaining a *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
(* and/or sell copies of the Software, and to permit persons to whom the *)
(* Software is furnished to do so, subject to the following conditions: *)
(* *)
(* The above copyright notice and this permission notice shall be included *)
(* in all copies or substantial portions of the Software. *)
(* *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
(* DEALINGS IN THE SOFTWARE. *)
(* *)
(*****************************************************************************)
(* -------------------------------------------------------------------------- *)
(* Initiate necromantic rite *)
let handle_python_error msg closure =
match closure () with
| result -> result
| exception Py.E (x, y) ->
let s =
Printf.sprintf
"%s\n%s\n%s\n"
msg
(Py.Object.to_string x)
(Py.Object.to_string y)
in
Stdlib.failwith s
let pyinit () =
let interpreter =
if Sys.file_exists "venv/bin/python3" then "venv/bin/python3"
else if Sys.file_exists "/usr/bin/python3" then "/usr/bin/python3"
else Stdlib.failwith "python3 interpreter not found"
in
if not (Py.is_initialized ()) then (
Printf.eprintf "Initializing python... " ;
Py.initialize ~interpreter ~version:3 () ;
Printf.eprintf "Done.\n%!")
let numpy () =
pyinit () ;
handle_python_error "While initializing numpy" @@ fun () ->
Py.Import.import_module "numpy"
let linear_model () =
pyinit () ;
handle_python_error "While initializing sklearn.linear_model" @@ fun () ->
Py.Import.import_module "sklearn.linear_model"
let scipy_optimize () =
pyinit () ;
handle_python_error "While initializing scipy.optimize" @@ fun () ->
Py.Import.import_module "scipy.optimize"
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