Adding --use-pep517 to pip

Author: Gavin Aguiar

pack/scripts/nix_deps.sh

@@ -4,6 +4,6 @@ python -m venv .env
 source .env/bin/activate
 python -m pip install --upgrade pip
 
-python -m pip install .
+python -m pip install . --use-pep517
 
-python -m pip install . --no-compile --target "$BUILD_SOURCESDIRECTORY/deps"
+python -m pip install . --no-compile --use-pep517 --target "$BUILD_SOURCESDIRECTORY/deps"

pack/scripts/win_deps.ps1

@@ -2,8 +2,8 @@ python -m venv .env
 .env\Scripts\Activate.ps1
 python -m pip install --upgrade pip
 
-python -m pip install .
+python -m pip install . --use-pep517
 
 $depsPath = Join-Path -Path $env:BUILD_SOURCESDIRECTORY -ChildPath "deps"
 
-python -m pip install . azure-functions --no-compile --target $depsPath.ToString()
+python -m pip install . azure-functions --use-pep517 --no-compile --target $depsPath.ToString()

tests/utils/testutils_lc.py

@@ -281,8 +281,8 @@ def _encrypt_context(cls, encryption_key: str, plain_text: str) -> str:
         return f'{iv_base64}.{encrypted_base64}.{key_sha256_base64}'
 
     def __enter__(self):
-        mesh_image = "mcr.microsoft.com/azure-functions/mesh:4.17.3.1-python3" \
-                     ".10"
+        mesh_image = self._find_latest_mesh_image(self._host_version,
+                                                  self._py_version)
         self.spawn_container(image=mesh_image)
         return self