OpenCV 4.7.0 release preparation

- Python 3.7 as baseline
- Python 3.11 support
- Various updates

.github/workflows/build_wheels_linux.yml

@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6']
+        python-version: ['3.7']
         platform: [x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -84,7 +84,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
         platform: [x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -93,7 +93,7 @@ jobs:
       ACTIONS_ALLOW_UNSECURE_COMMANDS: true
       MB_PYTHON_VERSION: ${{ matrix.python-version }}
       NP_TEST_DEP: numpy==1.19.4
-      NP_TEST_DEP_LATEST: numpy==1.21.2
+      NP_TEST_DEP_LATEST: numpy==1.24.0
       CONFIG_PATH: travis_config.sh
       PLAT: x86_64
     steps:
@@ -106,7 +106,7 @@ jobs:
         submodules: true
         fetch-depth: 0
     - name: Setup Environment variables
-      run: if [ "3.10" == "${{ matrix.python-version }}" ]; then echo "TEST_DEPENDS=$(echo $NP_TEST_DEP_LATEST)" >> $GITHUB_ENV; else echo "TEST_DEPENDS=$(echo $NP_TEST_DEP)" >> $GITHUB_ENV; fi
+      run: if [ "3.10" == "${{ matrix.python-version }}" -o "3.11" == "${{ matrix.python-version }}" ]; then echo "TEST_DEPENDS=$(echo $NP_TEST_DEP_LATEST)" >> $GITHUB_ENV; else echo "TEST_DEPENDS=$(echo $NP_TEST_DEP)" >> $GITHUB_ENV; fi
     - name: Download a wheel accordingly to matrix
       uses: actions/download-artifact@v3
       with:

.github/workflows/build_wheels_linux_arm.yml

@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6']
+        python-version: ['3.7']
         platform: [x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -84,7 +84,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
         platform: [x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -94,7 +94,7 @@ jobs:
       MB_PYTHON_VERSION: ${{ matrix.python-version }}
       PLAT: aarch64
       NP_TEST_DEP: numpy==1.19.4
-      NP_TEST_DEP_LATEST: numpy==1.21.4
+      NP_TEST_DEP_LATEST: numpy==1.24.0
       CONFIG_PATH: travis_config.sh
       DOCKER_TEST_IMAGE: multibuild/focal_arm64v8
       UNICODE_WIDTH: 32
@@ -108,7 +108,7 @@ jobs:
         submodules: true
         fetch-depth: 0
     - name: Setup Environment variables
-      run: if [ "3.10" == "${{ matrix.python-version }}" ]; then echo "TEST_DEPENDS=$(echo $NP_TEST_DEP_LATEST)" >> $GITHUB_ENV; else echo "TEST_DEPENDS=$(echo $NP_TEST_DEP)" >> $GITHUB_ENV; fi
+      run: if [ "3.10" == "${{ matrix.python-version }}" -o "3.11" == "${{ matrix.python-version }}" ]; then echo "TEST_DEPENDS=$(echo $NP_TEST_DEP_LATEST)" >> $GITHUB_ENV; else echo "TEST_DEPENDS=$(echo $NP_TEST_DEP)" >> $GITHUB_ENV; fi
     - name: Download a wheel accordingly to matrix
       uses: actions/download-artifact@v3
       with:

.github/workflows/build_wheels_macos.yml

@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6']
+        python-version: ['3.7']
         platform: [x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -58,6 +58,12 @@ jobs:
         if [[ "${{ github.event_name }}" == "schedule" || "${{ github.event_name }}" == "workflow_dispatch" ]]; then
           echo "ENABLE_ROLLING=1" >> $GITHUB_ENV
         fi
+        # hack for image issue on mac: https://github.com/actions/runner-images/issues/6817
+        rm /usr/local/bin/2to3*
+        rm /usr/local/bin/idle3*
+        rm /usr/local/bin/pydoc3*
+        rm /usr/local/bin/python3*
+        # end hack
     - name: Checkout
       uses: actions/checkout@v3
       with:
@@ -100,7 +106,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
         platform: [x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -109,7 +115,7 @@ jobs:
       ACTIONS_ALLOW_UNSECURE_COMMANDS: true
       MB_PYTHON_VERSION: ${{ matrix.python-version }}
       NP_TEST_DEP: numpy==1.19.4
-      NP_TEST_DEP_LATEST: numpy==1.21.4
+      NP_TEST_DEP_LATEST: numpy==1.24.0
       CONFIG_PATH: travis_config.sh
       PLAT: x86_64
       OPENCV_TEST_DATA_PATH: ${{ github.workspace }}/opencv_extra/testdata
@@ -129,7 +135,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
         architecture: ${{ matrix.platform }}
     - name: Setup Environment variables
-      run: if [ "3.10" == "${{ matrix.python-version }}" ]; then echo "TEST_DEPENDS=$(echo $NP_TEST_DEP_LATEST)" >> $GITHUB_ENV; else echo "TEST_DEPENDS=$(echo $NP_TEST_DEP)" >> $GITHUB_ENV; fi
+      run: if [ "3.10" == "${{ matrix.python-version }}" -o "3.11" == "${{ matrix.python-version }}" ]; then echo "TEST_DEPENDS=$(echo $NP_TEST_DEP_LATEST)" >> $GITHUB_ENV; else echo "TEST_DEPENDS=$(echo $NP_TEST_DEP)" >> $GITHUB_ENV; fi
     - name: Download a wheel accordingly to matrix
       uses: actions/download-artifact@v3
       with:
@@ -146,7 +152,7 @@ jobs:
         python modules/python/test/test.py -v --repo .
     - name: Pylint test
       run: |
-        python -m pip install pylint==2.12.2
+        python -m pip install pylint==2.15.9
         cd ${{ github.workspace }}/tests
         python -m pylint $PYLINT_TEST_FILE
 

.github/workflows/build_wheels_macos_m1.yml

@@ -75,7 +75,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
         platform: [x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -109,7 +109,7 @@ jobs:
         arch -arm64 python${{ matrix.python-version }} modules/python/test/test.py -v --repo .
     - name: Pylint test
       run: |
-        arch -arm64 python${{ matrix.python-version }} -m pip install pylint==2.12.2
+        arch -arm64 python${{ matrix.python-version }} -m pip install pylint==2.15.9
         cd ${{ github.workspace }}/tests
         arch -arm64 python${{ matrix.python-version }} -m pylint $PYLINT_TEST_FILE
 

.github/workflows/build_wheels_windows.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6']
+        python-version: ['3.7']
         platform: [x86, x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -67,7 +67,7 @@ jobs:
         python -m pip install --upgrade setuptools
         python -m pip install cmake==3.24.2
         python -m pip install toml && python -c "import toml; c = toml.load('pyproject.toml'); print('\n'.join(c['build-system']['requires']))" >> requirements.txt | python -m pip install -r requirements.txt
-        set "CI_BUILD=1" && python setup.py bdist_wheel --py-limited-api=cp36 --dist-dir=%cd%\wheelhouse -v
+        set "CI_BUILD=1" && python setup.py bdist_wheel --py-limited-api=cp37 --dist-dir=%cd%\wheelhouse -v
       shell: cmd
     - name: Saving all wheels
       uses: actions/upload-artifact@v3
@@ -89,7 +89,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
         platform: [x86, x64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
@@ -133,7 +133,7 @@ jobs:
         python modules\python\test\test.py -v --repo .
     - name: Pylint test
       run: |
-        python -m pip install pylint==2.12.2
+        python -m pip install pylint==2.15.9
         cd ${{ github.workspace }}\tests
         python -m pylint $PYLINT_TEST_FILE
 

patch_auditwheel_whitelist.py

@@ -12,9 +12,10 @@ def add_zlib_versions():
     for line in manylinux_policy_lines:
         if "ZLIB" in line:
             if len(line) > 22:
-                updated_line = line[:-2] + ', "1.2.9", "1.2.12"]'
+                updated_line = line[:-2] + ', "1.2.9", "1.2.12", "1.2.13"]'
             else:
-                updated_line = line[:-2] + '"1.2.9", "1.2.12"]'
+                updated_line = line[:-2] + '"1.2.9", "1.2.12", "1.2.13"]'
+            print("auditwheel patch: replace policy line \"%s\" with \"%s\"" % (line, updated_line))
             manylinux_policy_replacement = line.replace(line, updated_line)
         else:
             manylinux_policy_replacement = line

pyproject.toml

@@ -3,7 +3,7 @@ requires = [
   "setuptools==59.2.0", "wheel==0.37.0", "cmake>=3.1", "pip",
   "scikit-build>=0.13.2",
   "numpy==1.13.3; python_version=='3.6' and platform_machine != 'aarch64' and platform_machine != 'arm64'",
-  "numpy==1.14.5; python_version=='3.7' and platform_machine != 'aarch64' and platform_machine != 'arm64'",
+  "numpy==1.17.0; python_version=='3.7' and platform_machine != 'aarch64' and platform_machine != 'arm64'",
   "numpy==1.17.3; python_version=='3.8' and platform_machine != 'aarch64' and platform_machine != 'arm64'",
   "numpy==1.19.3; python_version<='3.9' and sys_platform == 'linux' and platform_machine == 'aarch64'",
   "numpy==1.21.0; python_version<='3.9' and sys_platform == 'darwin' and platform_machine == 'arm64'",

setup.py

@@ -25,7 +25,7 @@ def main():
 
     install_requires = [
         'numpy>=1.13.3; python_version<"3.7"',
-        'numpy>=1.14.5; python_version>="3.7"',
+        'numpy>=1.17.0; python_version>="3.7"', # https://github.com/numpy/numpy/pull/13725
         'numpy>=1.17.3; python_version>="3.8"',
         'numpy>=1.19.3; python_version>="3.9"',
         'numpy>=1.21.2; python_version>="3.10"',

travis_config.sh

@@ -16,7 +16,7 @@ function bdist_wheel_cmd {
     local abs_wheelhouse=$1
     # install all required packages in pyproject.toml, because bdist_wheel does not do it
     python${PYTHON_VERSION} -m pip install toml && python${PYTHON_VERSION} -c 'import toml; c = toml.load("pyproject.toml"); print("\n".join(c["build-system"]["requires"]))' | python${PYTHON_VERSION} -m pip install -r /dev/stdin
-    CI_BUILD=1 python${PYTHON_VERSION} setup.py bdist_wheel --py-limited-api=cp36 -v
+    CI_BUILD=1 python${PYTHON_VERSION} setup.py bdist_wheel --py-limited-api=cp37 -v
     cp dist/*.whl $abs_wheelhouse
     if [ -z "$IS_OSX" ]; then
       # this path can be changed in the latest manylinux image
@@ -143,7 +143,7 @@ function run_tests {
 
     echo "Running for linux"
 
-    if [ $PYTHON == "python3.6" ]; then
+    if [ $PYTHON == "python3.7" ]; then
       $PYTHON -m pip install -U numpy==1.19.4
     fi
     cd /io/tests
@@ -168,7 +168,7 @@ function pylint_test {
 
     echo "Starting Pylint tests..."
 
-    $PYTHON -m pip install pylint==2.12.2
+    $PYTHON -m pip install pylint==2.15.9
     cd /io/tests
     $PYTHON -m pylint /io/opencv/samples/python/squares.py
 }