From d8d6324f4c55f1161d59a11bb479053551ebf653 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dieter=20Werthm=C3=BCller?= <mail@werthmuller.org>
Date: Tue, 20 Feb 2024 15:23:04 +0100
Subject: [PATCH] Address Deprecation Warnings

---
 emg3d/meshes.py          |  2 +-
 emg3d/solver.py          |  2 +-
 tests/test_cli.py        | 10 +++++-----
 tests/test_electrodes.py |  2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/emg3d/meshes.py b/emg3d/meshes.py
index e5aed097..6b1c70fa 100644
--- a/emg3d/meshes.py
+++ b/emg3d/meshes.py
@@ -1030,7 +1030,7 @@ def _seasurface(edges, widths, center, seasurface, stretching, vector, limits):
 
             # No vector given (only one existing cell).
             if vector is None:
-                tdmin = fact*widths
+                tdmin = fact*widths.item()
                 cedge = center + tdmin/2
                 alphmax = 1.1*stretching[0]  # 10 % extra stretching.
 
diff --git a/emg3d/solver.py b/emg3d/solver.py
index d03d8ff1..172aecfe 100644
--- a/emg3d/solver.py
+++ b/emg3d/solver.py
@@ -758,7 +758,7 @@ def callback(x):
     # therefore throw an exception in `_terminate`, and catch it here.
     try:
         efield.field, i = getattr(ssl, var.sslsolver)(
-                A=A, b=sfield.field, x0=efield.field, tol=var.tol,
+                A=A, b=sfield.field, x0=efield.field, rtol=var.tol,
                 maxiter=var.ssl_maxit, atol=1e-30, M=M, callback=callback)
     except _ConvergenceError:
         i = -1  # Mark it as error; returned field is all zero.
diff --git a/tests/test_cli.py b/tests/test_cli.py
index f0629d80..f1d958c3 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -35,7 +35,7 @@ def __exit__(self, *exc):
 def test_main(script_runner):
 
     # Test the installed version runs by -h.
-    ret = script_runner.run('emg3d', '-h')
+    ret = script_runner.run(['emg3d', '-h'])
     assert ret.success
     assert "Multigrid solver for 3D electromagnetic diffusion." in ret.stdout
 
@@ -47,19 +47,19 @@ def test_main(script_runner):
 
     # Test emg3d/cli/_main_.py by calling the file - I.
     ret = script_runner.run(
-            'python', join('emg3d', 'cli', 'main.py'), '--version')
+            ['python', join('emg3d', 'cli', 'main.py'), '--version'])
     assert ret.success
     assert "emg3d v" in ret.stdout
 
     # Test emg3d/cli/_main_.py by calling the file - II.
     ret = script_runner.run(
-            'python', join('emg3d', 'cli', 'main.py'), '--report')
+            ['python', join('emg3d', 'cli', 'main.py'), '--report'])
     assert ret.success
     # Exclude time to avoid errors.
     assert emg3d.utils.Report().__repr__()[115:475] in ret.stdout
 
     # Test emg3d/cli/_main_.py by calling the file - III.
-    ret = script_runner.run('python', join('emg3d', 'cli', 'main.py'), '-d')
+    ret = script_runner.run(['python', join('emg3d', 'cli', 'main.py'), '-d'])
     assert not ret.success
     assert "* ERROR   :: Config file not found: " in ret.stderr
 
@@ -72,7 +72,7 @@ def test_main(script_runner):
 def test_main2(script_runner):
 
     # Test emg3d/__main__.py by calling the folder emg3d.
-    ret = script_runner.run('python', 'emg3d', '--report')
+    ret = script_runner.run(['python', 'emg3d', '--report'])
     assert ret.success
     # Exclude time to avoid errors.
     # Exclude empymod-version (after 475), because if run locally without
diff --git a/tests/test_electrodes.py b/tests/test_electrodes.py
index 45f64c8c..baa98ba3 100644
--- a/tests/test_electrodes.py
+++ b/tests/test_electrodes.py
@@ -595,7 +595,7 @@ def fwd(u):
         def adj(v):
             """What does `Simulation._get_rfield()`."""
             # The strength in _get_rfield is conj(residual*weight), normalized
-            strength = complex(v/-smu0)
+            strength = complex(v.item()/-smu0)
             src = rec._adjoint_source(rec.coordinates, strength=strength)
             return src.get_field(mesh, frequency).field