From 532e0890b4cd6cfe45ffd330fbd86dc19e4dc341 Mon Sep 17 00:00:00 2001
From: Drew Risinger <drewrisinger@users.noreply.github.com>
Date: Fri, 20 Mar 2020 10:43:30 -0400
Subject: [PATCH] pythonPackages.qiskit-ibmq-provider: init at 0.4.5

Qiskit Provider for accessing the quantum devices and simulators at IBMQ.

Requirement of qiskit package.
---
 .../qiskit-ibmq-provider/default.nix          | 63 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 +
 2 files changed, 65 insertions(+)
 create mode 100644 pkgs/development/python-modules/qiskit-ibmq-provider/default.nix

diff --git a/pkgs/development/python-modules/qiskit-ibmq-provider/default.nix b/pkgs/development/python-modules/qiskit-ibmq-provider/default.nix
new file mode 100644
index 00000000000..a9afcff9fea
--- /dev/null
+++ b/pkgs/development/python-modules/qiskit-ibmq-provider/default.nix
@@ -0,0 +1,63 @@
+{ lib
+, pythonOlder
+, buildPythonPackage
+, fetchFromGitHub
+, nest-asyncio
+, qiskit-terra
+, requests
+, requests_ntlm
+, websockets
+  # check inputs
+, pytestCheckHook
+, vcrpy
+, pproxy
+}:
+
+buildPythonPackage rec {
+  pname = "qiskit-ibmq-provider";
+  version = "0.4.5";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "Qiskit";
+    repo = pname;
+    rev = version;
+    sha256 = "148x3x1gk6l7nrqdllglq6ywh70k4747ybkx0bn25k3gmxd57y03";
+  };
+
+  propagatedBuildInputs = [
+    nest-asyncio
+    qiskit-terra
+    requests
+    requests_ntlm
+    websockets
+  ];
+
+  # websockets seems to be pinned b/c in v8+ it drops py3.5 support. Not an issue here (usually py3.7+, and disabled for older py3.6)
+  prePatch = ''
+    substituteInPlace requirements.txt --replace "websockets>=7,<8" "websockets"
+    substituteInPlace setup.py --replace "websockets>=7,<8" "websockets"
+  '';
+
+  # Most tests require credentials to run on IBMQ
+  checkInputs = [ pytestCheckHook vcrpy pproxy ];
+  dontUseSetuptoolsCheck = true;
+  pythonImportsCheck = [ "qiskit.providers.ibmq" ];
+  disabledTests = [ "test_old_api_url" "test_non_auth_url" "test_non_auth_url_with_hub" ];  # tests require internet connection
+  # skip tests that require IBMQ credentials, vs failing.
+  preCheck = ''
+    pushd /build/source  # run pytest from /build vs $out
+    substituteInPlace test/decorators.py --replace "Exception('Could not locate valid credentials.')" "SkipTest('No IBMQ Credentials provided for tests')"
+  '';
+  postCheck = ''
+    popd
+  '';
+
+  meta = with lib; {
+    description = "Qiskit provider for accessing the quantum devices and simulators at IBMQ";
+    homepage = "https://github.com/Qiskit/qiskit-ibmq-provider";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ drewrisinger ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8d3505a1686..d2d63bacc2d 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7052,6 +7052,8 @@ in {
 
   qiskit = callPackage ../development/python-modules/qiskit { };
 
+  qiskit-ibmq-provider = callPackage ../development/python-modules/qiskit-ibmq-provider { };
+
   qiskit-terra = callPackage ../development/python-modules/qiskit-terra { };
 
   qasm2image = callPackage ../development/python-modules/qasm2image { };