Merge pull request #273 from PyO3/re-export-pyo3

Re-export PyO3 to make it easier for dependent crates to end up with matching PyO3 versions.

Author: adamreichold

.github/workflows/ci.yml

@@ -68,10 +68,6 @@ jobs:
           with open("Cargo.toml", "w") as f:
             toml.dump(cargo_toml, f)
         shell: python
-      - name: Build without default features
-        run: cargo build --no-default-features
-      - name: Build with default features
-        run: cargo build
       - name: Test
         run: |
             pip install numpy
@@ -80,13 +76,12 @@ jobs:
         if: ${{ !startsWith(matrix.python-version, 'pypy') }}
       - name: Test example
         run: |
-          pip install tox
-          tox -c examples/simple-extension
+          pip install nox
+          nox -f examples/simple-extension/noxfile.py
     env:
       CARGO_TERM_VERBOSE: true
       CARGO_BUILD_TARGET: ${{ matrix.platform.rust-target }}
       RUST_BACKTRACE: 1
-      TOX_TESTENV_PASSENV: CARGO_BUILD_TARGET
 
   check-msrv:
     runs-on: ubuntu-latest
@@ -135,9 +130,8 @@ jobs:
         shell: python
       - name: Test example
         run: |
-          pip install tox
-          tox
-        working-directory: examples/simple-extension
+          pip install nox
+          nox -f examples/simple-extension/noxfile.py
 
   examples:
     runs-on: ubuntu-latest
@@ -159,9 +153,9 @@ jobs:
         continue-on-error: true
       - name: Test examples
         run: |
-          pip install tox
-          tox -c examples/linalg
-          tox -c examples/parallel
+          pip install nox
+          nox -f examples/linalg/noxfile.py
+          nox -f examples/parallel/noxfile.py
 
   coverage:
     runs-on: ubuntu-latest

examples/linalg/noxfile.py

@@ -0,0 +1,8 @@
+import nox
+
+
+@nox.session
+def tests(session):
+    session.install('pip', 'numpy', 'pytest')
+    session.run('pip', 'install', '.', '-v')
+    session.run('pytest')

examples/linalg/tox.ini

@@ -0,0 +1,8 @@
+import nox
+
+
+@nox.session
+def tests(session):
+    session.install('pip', 'numpy', 'pytest')
+    session.run('pip', 'install', '.', '-v')
+    session.run('pytest')

examples/parallel/noxfile.py

@@ -0,0 +1,8 @@
+import nox
+
+
+@nox.session
+def tests(session):
+    session.install('pip', 'numpy', 'pytest')
+    session.run('pip', 'install', '.', '-v')
+    session.run('pytest')

examples/parallel/tox.ini

@@ -40,6 +40,7 @@ mod slice_container;
 mod sum_products;
 
 pub use ndarray;
+pub use pyo3;
 
 pub use crate::array::{
     get_array_module, PyArray, PyArray0, PyArray1, PyArray2, PyArray3, PyArray4, PyArray5,