feat(bindgen): Python emscripten support

.github/workflows/python-wasm.yml

@@ -2,6 +2,9 @@ name: Python Wasm
 
 on: [push,pull_request]
 
+env:
+  pyodide-version: 0.23.1
+
 jobs:
   test-itkwasm:
     runs-on: ${{ matrix.os }}
@@ -41,7 +44,7 @@ jobs:
         shell: bash
         working-directory: ./packages/core/python/itkwasm
         run: |
-          curl -L https://github.com/pyodide/pyodide/releases/download/0.23.1/pyodide-0.23.1.tar.bz2 -o pyodide.tar.bz2
+          curl -L https://github.com/pyodide/pyodide/releases/download/${{ env.pyodide-version }}/pyodide-${{ env.pyodide-version }}.tar.bz2 -o pyodide.tar.bz2
           tar xjf pyodide.tar.bz2
           rm -rf dist
           mv pyodide dist
@@ -88,17 +91,47 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           python -m pip install hatch pytest
-      - name: Test compress-stringify wasi
+      - name: Install pytest-pyodide
+        if: ${{ matrix.python-minor-version > 9 }}
+        shell: bash
+        run: |
+          python -m pip install pytest-pyodide
+      - uses: pyodide/pyodide-actions/install-browser@main
+        if: ${{ matrix.python-minor-version > 9 }}
+        with:
+          runner: selenium
+          browser: chrome
+          browser-version: latest
+      - name: Test compress-stringify wasi native
+        if: ${{ matrix.python-minor-version < 10 }}
         working-directory: ./packages/compress-stringify/python/itkwasm-compress-stringify-wasi
         run: |
           python -m pip install -e .
           pytest
-          hatch run test
-      - name: Test compress-stringify
+      - name: Test compress-stringify native
+        if: ${{ matrix.python-minor-version < 10 }}
         working-directory: ./packages/compress-stringify/python/itkwasm-compress-stringify
         run: |
           python -m pip install -e .
           pytest
+      - name: Test compress-stringify wasi chrome
+        if: ${{ matrix.python-minor-version > 9 }}
+        working-directory: ./packages/compress-stringify/python/itkwasm-compress-stringify-wasi
+        shell: bash
+        run: |
+          hatch run download-pyodide
+          hatch build -t wheel
+          ls dist
+          pytest --dist-dir=./dist --rt=chrome
+      - name: Test compress-stringify chrome
+        if: ${{ matrix.python-minor-version > 9 }}
+        working-directory: ./packages/compress-stringify/python/itkwasm-compress-stringify
+        shell: bash
+        run: |
+          hatch run download-pyodide
+          hatch build -t wheel
+          ls dist
+          pytest --dist-dir=./dist --rt=chrome
 
   build-sphinx-docs:
     runs-on: ubuntu-22.04

package.json

@@ -35,7 +35,7 @@
     "build:emscripten": "node ./src/build-emscripten.js",
     "build:emscripten:compress-stringify": "node ./src/itk-wasm-cli.js -s packages/compress-stringify -b emscripten-build build ",
     "build:bindgen:typescript:compress-stringify": "./src/itk-wasm-cli.js -s packages/compress-stringify -b emscripten-build bindgen --package-name @itk-wasm/compress-stringify --package-description \"Zstandard compression and decompression and base64 encoding and decoding in WebAssembly.\" --repository 'https://github.com/InsightSoftwareConsortium/itk-wasm'",
-    "build:bindgen:python:compress-stringify": "./src/itk-wasm-cli.js -s packages/compress-stringify -b wasi-build bindgen --language python --package-name itkwasm-compress-stringify --package-description \"Zstandard compression and decompression and base64 encoding and decoding in WebAssembly.\" --repository 'https://github.com/InsightSoftwareConsortium/itk-wasm'",
+    "build:bindgen:python:compress-stringify": "./src/itk-wasm-cli.js -s packages/compress-stringify -b wasi-build bindgen --language python --package-name itkwasm-compress-stringify --package-description \"Zstandard compression and decompression and base64 encoding and decoding in WebAssembly.\" --package-version 0.4.2 --repository 'https://github.com/InsightSoftwareConsortium/itk-wasm'",
     "build:emscripten:dicom": "node ./src/itk-wasm-cli.js -s packages/dicom -b emscripten-build build ",
     "build:bindgen:typescript:dicom": "./src/itk-wasm-cli.js -s packages/dicom -b emscripten-build bindgen --package-name @itk-wasm/dicom --package-description \"Read files and images related to DICOM file format.\" --repository 'https://github.com/InsightSoftwareConsortium/itk-wasm'",
     "build:emscripten:packages": "npm run build:emscripten:compress-stringify && npm run build:bindgen:typescript:compress-stringify && npm run build:emscripten:dicom && npm run build:bindgen:typescript:dicom",

packages/compress-stringify/python/itkwasm-compress-stringify-wasi/itkwasm_compress_stringify_wasi/_version.py

@@ -1 +1 @@
-__version__ = "0.1.0"
+__version__ = "0.4.2"

packages/compress-stringify/python/itkwasm-compress-stringify-wasi/pyproject.toml

@@ -33,7 +33,7 @@ keywords = [
 
 requires-python = ">=3.7"
 dependencies = [
-    "itkwasm >= 1.0.b93",
+    "itkwasm >= 1.0.b97",
     "importlib_resources",
 
 ]
@@ -46,9 +46,11 @@ dependencies = [
   "pytest",
 ]
 
+
 [tool.hatch.envs.default.scripts]
 test = "pytest"
 
+
 [tool.hatch.build]
 exclude = [
   "/examples",

packages/compress-stringify/python/itkwasm-compress-stringify/itkwasm_compress_stringify/_version.py

@@ -1 +1 @@
-__version__ = "0.1.0"
+__version__ = "0.4.2"

packages/compress-stringify/python/itkwasm-compress-stringify/pyproject.toml

@@ -33,7 +33,7 @@ keywords = [
 
 requires-python = ">=3.7"
 dependencies = [
-    "itkwasm >= 1.0.b93",
+    "itkwasm >= 1.0.b97",
     "itkwasm-compress-stringify-wasi; sys_platform != \"emscripten\"",
     "itkwasm-compress-stringify-emscripten; sys_platform == \"emscripten\"",
 
@@ -47,9 +47,11 @@ dependencies = [
   "pytest",
 ]
 
+
 [tool.hatch.envs.default.scripts]
 test = "pytest"
 
+
 [tool.hatch.build]
 exclude = [
   "/examples",

packages/core/python/itkwasm/itkwasm/__init__.py

@@ -1,6 +1,6 @@
 """itkwasm: Python interface to itk-wasm WebAssembly modules."""
 
-__version__ = "1.0b96"
+__version__ = "1.0b97"
 
 from .interface_types import InterfaceTypes
 from .image import Image, ImageType

packages/core/python/itkwasm/itkwasm/pyodide.py

@@ -61,7 +61,9 @@ def web_worker(self, value):
 
 def to_py(js_proxy):
     import pyodide
-    if isinstance(js_proxy, pyodide.ffi.JsArray):
+    if hasattr(js_proxy, 'constructor') and js_proxy.constructor.name == "Uint8Array":
+        return js_proxy.to_bytes()
+    elif isinstance(js_proxy, pyodide.ffi.JsArray):
         return [to_py(value) for value in js_proxy]
     elif hasattr(js_proxy, "imageType"):
         image_dict = js_proxy.to_py()
@@ -139,7 +141,8 @@ def to_py(js_proxy):
         binary_stream_dict = js_proxy.to_py()
         binary_stream_dict['data'] = bytes(binary_stream_dict['data'])
         return BinaryStream(**binary_stream_dict)
-    return js_proxy.to_py()
+    # Is not a JsProxy, int, etc
+    return js_proxy
 
 def to_js(py):
     import pyodide

packages/core/python/itkwasm/test/test_pyodide.py

@@ -289,3 +289,28 @@ def verify_text_file(text_file):
 
     for text_file in text_files_py:
         verify_text_file(text_file)
+
+@run_in_pyodide(packages=['micropip', 'numpy'])
+async def test_uint8array_conversion(selenium, package_wheel):
+    import micropip
+    await micropip.install(package_wheel)
+
+    from itkwasm.pyodide import to_js, to_py
+
+    data = bytes([222,173,190,239])
+
+    data_js = to_js(data)
+    data_py = to_py(data_js)
+
+    assert isinstance(data_py, bytes)
+
+    assert data_py[0], 222
+    assert data_py[1], 173
+    assert data_py[2], 190
+    assert data_py[3], 239
+
+    ivalue = 8
+    ivalue_js = to_js(ivalue)
+    ivalue_py = to_py(ivalue_js)
+
+    assert ivalue == ivalue_py

src/bindgen/camelCase.js

@@ -0,0 +1,17 @@
+function camelCase(param) {
+  // make any alphabets that follows '-' an uppercase character, and remove the corresponding hyphen
+  let cameledParam = param.replace(/-([a-z])/g, (kk) => {
+    return kk[1].toUpperCase();
+  });
+
+  // remove all non-alphanumeric characters
+  const outParam = cameledParam.replace(/([^0-9a-z])/ig, '')
+
+  // check if resulting string is empty
+  if(outParam === '') {
+    console.error(`Resulting string is empty.`)
+  }
+  return outParam
+}
+
+export default camelCase

src/bindgen/python-resources/template.pyproject.toml

@@ -33,19 +33,18 @@ keywords = [
 
 requires-python = ">=3.7"
 dependencies = [
-    "itkwasm >= 1.0.b93",@bindgenDependencies@
+    "itkwasm >= 1.0.b97",@bindgenDependencies@
 ]
 
 [tool.hatch.version]
 path = "@bindgenPyPackage@/_version.py"
 
 [tool.hatch.envs.default]
 dependencies = [
-  "pytest",
+  "pytest",@bindgenHatchEnvDependencies@
 ]
 
-[tool.hatch.envs.default.scripts]
-test = "pytest"
+@bindgenHatchEnvScripts@
 
 [tool.hatch.build]
 exclude = [