From cd12896cf320a778167e8a5f3bf8ef7d404c3efa Mon Sep 17 00:00:00 2001
From: "Martin K. Scherer" <marscher@users.noreply.github.com>
Date: Fri, 15 Sep 2023 17:01:38 +0200
Subject: [PATCH 1/2] only try to clear lines, if there are already artists in
 the axes. (#99)

* only try to clear lines, if there are already artists in the axes.

* update python versions

* update action syntax

---------

Co-authored-by: Cagtay Fabry <43667554+CagtayFabry@users.noreply.github.com>
---
 .github/workflows/pytest.yml       | 4 ++--
 setup.cfg                          | 5 +++--
 weldx_widgets/widget_groove_sel.py | 3 ++-
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 233ade2..dec2dcb 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -15,11 +15,11 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        py: ['3.8', '3.9']
+        py: ['3.9', '3.10', '3.11']
         weldx_version: ['weldx']
         include:
           - os: ubuntu-latest
-            py: 3.8
+            py: '3.10'
             weldx_version: 'git+https://github.com/BAMWelDX/weldx.git'
     env:
       WELDX_VERSION: ${{ matrix.weldx_version }}
diff --git a/setup.cfg b/setup.cfg
index a6376e2..4a4ac63 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -21,8 +21,9 @@ classifiers =
     Natural Language :: English
     Programming Language :: Python
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
     Topic :: Scientific/Engineering :: Physics
 project_urls =
     Documentation = https://weldx.readthedocs.io
@@ -32,7 +33,7 @@ project_urls =
 
 [options]
 packages = find:
-python_requires = >=3.8
+python_requires = >=3.9
 setup_requires =
     setuptools >=38.3.0
     setuptools_scm
diff --git a/weldx_widgets/widget_groove_sel.py b/weldx_widgets/widget_groove_sel.py
index f8474e1..ccb37eb 100644
--- a/weldx_widgets/widget_groove_sel.py
+++ b/weldx_widgets/widget_groove_sel.py
@@ -385,7 +385,8 @@ def _update_plot(self, *args):
             self.groove_obj = groove_obj
 
         # TODO: re-plot can be avoided (e.g. set_xydata?)
-        self.ax.lines.clear()
+        if self.ax.lines:
+            self.ax.lines.clear()
         # self.ax.texts = []
 
         self.groove_obj.plot(line_style="-", ax=self.ax)

From 6bb6a583593b547031bfcaad3ac10bb1393fd9ec Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Fri, 15 Sep 2023 17:12:41 +0200
Subject: [PATCH 2/2] [pre-commit.ci] pre-commit autoupdate (#98)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

updates:
- [github.com/psf/black: 23.7.0 → 23.9.1](https://github.com/psf/black/compare/23.7.0...23.9.1)
- [github.com/PyCQA/flake8: 6.0.0 → 6.1.0](https://github.com/PyCQA/flake8/compare/6.0.0...6.1.0)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Çağtay Fabry <cagtay.fabry@bam.de>
---
 .pre-commit-config.yaml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index cff65b9..afb7c5d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -19,7 +19,7 @@ repos:
       exclude: devtools/conda.recipe/meta.yaml  # doesn't play nice with jinja
 #    - id: no-commit-to-branch  # only makes sense for local pre-commit hooks
 -   repo: https://github.com/psf/black
-    rev: 23.7.0
+    rev: 23.9.1
     hooks:
     - id: black
 -   repo: https://github.com/PyCQA/isort
@@ -27,7 +27,7 @@ repos:
     hooks:
     - id: isort
 -   repo: https://github.com/PyCQA/flake8
-    rev: 6.0.0
+    rev: 6.1.0
     hooks:
     - id: flake8
 -   repo: https://github.com/PyCQA/pydocstyle