From 015e3a5d5a8c567a04c1915fd8a49a98d4410fdb Mon Sep 17 00:00:00 2001
From: Kevin Sheppard <bashtage@users.noreply.github.com>
Date: Tue, 16 Apr 2024 10:43:17 +0100
Subject: [PATCH] STYL: Fix linting issues

---
 appveyor.yml               | 33 ---------------------------------
 arch/utility/array.py      |  6 ++++--
 arch/utility/timeseries.py |  9 ++++++---
 3 files changed, 10 insertions(+), 38 deletions(-)
 delete mode 100644 appveyor.yml

diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index 951eca2a13..0000000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,33 +0,0 @@
-skip_tags: true
-clone_depth: 50
-
-os: Visual Studio 2017
-
-environment:
-  matrix:
-    - PY_MAJOR_VER: 3
-      PYTHON_ARCH: "x86"
-    - PY_MAJOR_VER: 3
-      PYTHON_ARCH: "x86_64"
-
-platform:
-    - x64
-
-build_script:
-  - cmd: SET MKL_NUM_THREADS=1
-  - cmd: SET NUMEXPR_NUM_THREADS=1
-  - cmd: SET OMP_NUM_THREADS=1
-  - cmd: SET OPENBLAS_NUM_THREADS=1
-  - ps: Start-FileDownload "https://repo.continuum.io/miniconda/Miniconda$env:PY_MAJOR_VER-latest-Windows-$env:PYTHON_ARCH.exe" C:\Miniconda.exe; echo "Finished downloading miniconda"
-  - cmd: C:\Miniconda.exe /S /D=C:\Py
-  - cmd: SET PATH=C:\Py;C:\Py\Scripts;C:\Py\Library\bin;%PATH%
-  - cmd: conda config --set always_yes yes
-  - cmd: conda update conda --quiet
-  - cmd: python -m pip install --upgrade pip
-  - cmd: conda install numpy cython pandas scipy patsy statsmodels matplotlib nbconvert nbformat pip pyyaml pyqt pyparsing --quiet
-  - cmd: conda install -c numba numba llvmlite
-  - cmd: pip install "pytest>=7,<7.1" pytest-xdist!=1.30 property_cached
-  - cmd: pip install -e .
-
-test_script:
-  - cmd: pytest -n 2 arch -m "(not slow)" --durations=25
diff --git a/arch/utility/array.py b/arch/utility/array.py
index df6fc35a8a..23d9e6e108 100644
--- a/arch/utility/array.py
+++ b/arch/utility/array.py
@@ -38,7 +38,8 @@ def ensure1d(
     x: int | float | Sequence[int | float] | ArrayLike,
     name: Hashable | None,
     series: Literal[True] = ...,
-) -> Series: ...  # pragma: no cover
+) -> Series:  # pragma: no cover
+    ...  # pragma: no cover
 
 
 @overload
@@ -46,7 +47,8 @@ def ensure1d(
     x: int | float | Sequence[int | float] | ArrayLike,
     name: Hashable | None,
     series: Literal[False],
-) -> np.ndarray: ...  # pragma: no cover
+) -> np.ndarray:  # pragma: no cover
+    ...  # pragma: no cover
 
 
 def ensure1d(
diff --git a/arch/utility/timeseries.py b/arch/utility/timeseries.py
index 477e32df89..23589170d0 100644
--- a/arch/utility/timeseries.py
+++ b/arch/utility/timeseries.py
@@ -48,7 +48,8 @@ def add_trend(
     prepend: bool = ...,
     nobs: int = ...,
     has_constant: Literal["raise", "add", "skip"] = ...,
-) -> Float64Array: ...  # pragma: no cover
+) -> Float64Array:  # pragma: no cover
+    ...  # pragma: no cover
 
 
 @overload
@@ -58,7 +59,8 @@ def add_trend(
     prepend: bool = ...,
     nobs: None = ...,
     has_constant: Literal["raise", "add", "skip"] = ...,
-) -> Float64Array: ...  # pragma: no cover
+) -> Float64Array:  # pragma: no cover
+    ...  # pragma: no cover
 
 
 @overload
@@ -68,7 +70,8 @@ def add_trend(
     prepend: bool = ...,
     nobs: None = ...,
     has_constant: Literal["raise", "add", "skip"] = ...,
-) -> pd.DataFrame: ...  # pragma: no cover
+) -> pd.DataFrame:  # pragma: no cover
+    ...  # pragma: no cover
 
 
 def add_trend(