initialize appending for the intended scope

.github/workflows/python-package.yml

@@ -0,0 +1,43 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+name: Python package
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest coveralls pytest-cov
+        if [ -f requirements-dev.txt ]; then pip install -r requirements-dev.txt; fi
+    - name: Install rio-mbtiles
+      run: |
+        pip install -e .  
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest
+      run: |
+        pytest -v

.travis.yml

@@ -4,10 +4,14 @@ env:
   global:
     - PIP_WHEEL_DIR=$HOME/.cache/pip
     - PIP_FIND_LINKS=$HOME/.cache/pip
-python:
-  - "2.7.15"
-  - "3.6"
-  - "3.7"
+matrix:
+  fast_finish: true
+  include:
+    - python:  '3.10'
+      dist:  bionic
+    - python:  '3.9'
+    - python:  '3.8'
+
 cache:
   directories:
     - $HOME/.cache/pip/

README.rst

@@ -1,9 +1,18 @@
 rio-mbtiles
 ===========
 
+.. image:: https://github.com/mapbox/rio-mbtiles/actions/workflows/python-package.yml/badge.svg
+   :alt: Python Workflow
+   :target: https://github.com/mapbox/rio-mbtiles/actions/workflows/python-package.yml
+
 .. image:: https://travis-ci.org/mapbox/rio-mbtiles.svg
    :target: https://travis-ci.org/mapbox/rio-mbtiles
 
+
+.. image:: https://img.shields.io/pypi/v/rio-mbtiles.svg
+   :target: https://pypi.python.org/pypi/rio-mbtiles
+
+
 A plugin for the
 `Rasterio CLI <https://github.com/mapbox/rasterio/blob/master/docs/cli.rst>`__
 that exports a raster dataset to the MBTiles (version 1.3) format. Features

mbtiles/scripts/cli.py

@@ -458,6 +458,7 @@ def mbtiles(
             pbar = None
 
         # Initialize the sqlite db.
+        appending = None
         output_exists = os.path.exists(output)
         if append:
             appending = output_exists

requirements-dev.txt

@@ -1,13 +1,13 @@
 affine==2.2.1
 cligj==0.5.0
-coveralls==1.5.1
+coveralls
 enum34==1.1.6
 mercantile==1.1.6
 mock; python_version < "3.3"
-numpy==1.15.2
-pytest<3.9
-pytest-cov==2.5.1
+numpy>=1.10
+pytest
+pytest-cov
 coverage==4.5.1
-rasterio~=1.0
+rasterio>=1.0
 snuggs==1.4.2
-tqdm==4.48.2
+tqdm>=4.0

setup.py

@@ -36,10 +36,10 @@
         "cligj>=0.5",
         "mercantile",
         "numpy>=1.10",
-        "rasterio~=1.0",
-        "shapely~=1.7.0",
+        "rasterio>=1.0",
+        "shapely>=1.8.0",
         "supermercado",
-        "tqdm~=4.0",
+        "tqdm>=4.0",
     ],
     extras_require={"test": ["coveralls", "pytest", "pytest-cov"]},
     entry_points="""

tests/test_cli.py

@@ -249,7 +249,7 @@ def test_rgba_png(tmpdir, data, filename):
         (4, 10, 70, "RGB.byte.tif"),
         (6, 7, 6, "RGB.byte.tif"),
         (4, 10, 12, "rgb-193f513.vrt"),
-        (4, 10, 69, "rgb-fa48952.vrt"),
+        (4, 10, 70, "rgb-fa48952.vrt"),
     ],
 )
 @pytest.mark.parametrize(