Test on python 3.10

.github/workflows/pre-commit.yml

@@ -0,0 +1,17 @@
+name: pre-commit
+
+on:
+  pull_request:
+
+  push:
+    branches:
+      - main
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
+    - uses: pre-commit/[email protected]

.github/workflows/test.yml

@@ -22,8 +22,9 @@ jobs:
       fail-fast: false
 
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest]
         # only test oldest and most recent supported Python versions
+        # no rasterio wheels on 3.10 yet, so we use 3.9 for now
         python-version: ["3.6", "3.9"]
 
     defaults:
@@ -60,7 +61,6 @@ jobs:
           pip install cython numpy
 
       - name: Setup MySQL
-        if: contains(matrix.os, 'ubuntu')
         run: |
           sudo /etc/init.d/mysql start
           mysql -e 'SHOW DATABASES;' -u${{ env.DB_USER }} -p${{ env.DB_PASSWORD }}
@@ -77,12 +77,8 @@ jobs:
 
       - name: Run tests
         run: |
-          if [ ${{ runner.os }} == "Linux" ]; then
-            MYSQL_SRV="${{ env.DB_USER }}:${{ env.DB_PASSWORD }}@127.0.0.1:${{ env.DB_PORT }}"
-            python -m pytest . --color=yes --cov=terracotta --mysql-server=$MYSQL_SRV
-          else
-            python -m pytest . --color=yes --cov=terracotta
-          fi
+          MYSQL_SRV="${{ env.DB_USER }}:${{ env.DB_PASSWORD }}@127.0.0.1:${{ env.DB_PORT }}"
+          python -m pytest . --color=yes --cov=terracotta --mysql-server=$MYSQL_SRV
 
       - name: Run benchmarks
         run: |
@@ -101,9 +97,9 @@ jobs:
       fail-fast: false
 
       matrix:
-        os: [windows-latest]
+        os: [macos-latest, windows-latest]
         # Python 3.6 is EOL on conda-forge, so use 3.7 instead
-        python-version: ["3.7", "3.9"]
+        python-version: ["3.7", "3.10"]
 
     defaults:
       run:

.pre-commit-config.yaml

@@ -0,0 +1,12 @@
+repos:
+-   repo: https://gitlab.com/pycqa/flake8
+    rev: 3.8.3
+    hooks:
+    - id: flake8
+      args: ['--config=setup.cfg']
+
+exclude: "
+  ^$\
+  |terracotta/_version.py\
+  |docs\
+  "

setup.cfg

@@ -9,7 +9,6 @@ max-line-length = 100
 [tool:pytest]
 addopts =
   --mypy
-  --flake8
   --benchmark-group-by=func
   --benchmark-columns=min,max,median
   -v
@@ -26,8 +25,6 @@ filterwarnings =
   ignore:numpy.ufunc size changed:RuntimeWarning
   # sometimes, dependencies leak resources
   ignore:.*socket\.socket.*:pytest.PytestUnraisableExceptionWarning
-flake8-ignore =
-  terracotta/_version.py ALL
 
 [mypy]
 show_error_codes = True

setup.py

@@ -80,13 +80,11 @@
             'pytest',
             'pytest-cov',
             'pytest-mypy',
-            'pytest-flake8',
             'pytest-benchmark',
             'attrs>=17.4.0',
             'codecov',
             'colorlog',
             'crick',
-            'flake8',
             'matplotlib',
             'moto',
             'aws-xray-sdk',

terracotta/handlers/singleband.py

@@ -30,7 +30,7 @@ def singleband(keys: Union[Sequence[str], Mapping[str, str]],
     else:
         stretch_min, stretch_max = stretch_range
 
-    preserve_values = isinstance(colormap, collections.Mapping)
+    preserve_values = isinstance(colormap, collections.abc.Mapping)
 
     settings = get_settings()
     if tile_size is None: