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Replace clr module by loading through clr_loader · Edriv-DS/pythonnet@b92d929 · GitHub

  1. Edriv-DS
  2. pythonnet

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Commit b92d929

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filmor
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Replace clr module by loading through clr_loader
clr_loader is based on CFFI and allows loading pythonnet on different .NET runtime implementations, currently .NET Framework, .NET Core and Mono. Apart from dropping the respective old code, this requires the following changes: - Move libpython discovery into Python by vendoring and adjusting `find_libpython` - Adjust the GIL handling in the startup code as CFFI releases the GIL when calling the external function - Remove the intermittent `configure` command as it is not required anymore - Adjust a few test-cases - Remove `_AtExit` Due to issues with the reference counts, the `atexit` callback is currently essentially a no-op until these are fixed.
1 parent 4da1954 commit b92d929

28 files changed

Lines changed: 804 additions & 824 deletions

‎.github/workflows/main.yml‎

Lines changed: 12 additions & 41 deletions
Original file line numberDiff line numberDiff line change
@@ -12,33 +12,9 @@ jobs:
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fail-fast: false
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matrix:
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os: [windows, ubuntu, macos]
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pyver_minor: [6, 7, 8, 9]
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python: ["3.6", "3.7", "3.8", "3.9"]
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platform: [x64]
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shutdown_mode: [Normal, Soft]
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include:
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- os: ubuntu
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pyver_minor: 6
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dll_suffix: m
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- os: ubuntu
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pyver_minor: 7
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dll_suffix: m
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- os: macos
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dll_prefix: lib
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dll_pyver_major: '3.'
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dll_suffix: m
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- os: ubuntu
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dll_prefix: lib
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dll_pyver_major: '3.'
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- os: windows
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dll_pyver_major: '3'
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- os: ubuntu
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dll_ext: .so
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- os: windows
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dll_ext: .dll
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- os: macos
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dll_ext: .dylib
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env:
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PYTHONNET_SHUTDOWN_MODE: ${{ matrix.SHUTDOWN_MODE }}
@@ -56,10 +32,10 @@ jobs:
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- name: Setup .NET
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uses: actions/setup-dotnet@v1
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- name: Set up Python 3.${{ matrix.pyver_minor }}
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- name: Set up Python ${{ matrix.python }}
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uses: actions/setup-python@v2
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with:
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python-version: 3.${{ matrix.pyver_minor }}
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python-version: ${{ matrix.python }}
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architecture: ${{ matrix.platform }}
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- name: Install dependencies
@@ -68,31 +44,26 @@ jobs:
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- name: Build and Install
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run: |
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python setup.py configure
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pip install -v .
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# TODO this should be gone once clr module sets PythonDLL or preloads it
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- name: Python Tests
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run: pytest
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if: ${{ matrix.os != 'macos' }}
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env:
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PYTHONNET_PYDLL: ${{ matrix.DLL_PREFIX }}python${{matrix.DLL_PYVER_MAJOR}}${{matrix.PYVER_MINOR}}${{matrix.DLL_SUFFIX}}${{matrix.DLL_EXT}}
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- name: Set Python DLL path (non Windows)
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if: ${{ matrix.os != 'windows' }}
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run: |
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python -m pythonnet.find_libpython --export >> $GITHUB_ENV
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- name: Set Python DLL path (Windows)
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if: ${{ matrix.os == 'windows' }}
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run: |
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python -m pythonnet.find_libpython --export | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
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- name: Python Tests
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run: pytest
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if: ${{ matrix.os == 'macos' }}
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- name: Embedding tests
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run: dotnet test --runtime any-${{ matrix.platform }} src/embed_tests/
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if: ${{ matrix.os != 'macos' }} # Not working right now, doesn't find libpython
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env:
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PYTHONNET_PYDLL: ${{ matrix.DLL_PREFIX }}python${{matrix.DLL_PYVER_MAJOR}}${{matrix.PYVER_MINOR}}${{matrix.DLL_SUFFIX}}${{matrix.DLL_EXT}}
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- name: Python tests run from .NET
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run: dotnet test --runtime any-${{ matrix.platform }} src/python_tests_runner/
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if: ${{ matrix.os == 'windows' }} # Not working for others right now
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env:
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PYTHONNET_PYDLL: ${{ matrix.DLL_PREFIX }}python${{matrix.DLL_PYVER_MAJOR}}${{matrix.PYVER_MINOR}}${{matrix.DLL_SUFFIX}}${{matrix.DLL_EXT}}
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# TODO: Run perf tests
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# TODO: Run mono tests on Windows?

‎.gitignore‎

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Original file line numberDiff line numberDiff line change
@@ -1,8 +1,5 @@
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/src/runtime/interopNative.cs
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# Configuration data
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configured.props
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# General binaries and Build results
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*.dll
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*.exe

‎Directory.Build.props‎

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Original file line numberDiff line numberDiff line change
@@ -18,5 +18,4 @@
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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</PackageReference>
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</ItemGroup>
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<Import Project="$(MSBuildThisFileDirectory)configured.props" Condition="Exists('$(MSBuildThisFileDirectory)configured.props')" />
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</Project>

‎appveyor.yml‎

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Original file line numberDiff line numberDiff line change
@@ -30,9 +30,9 @@ environment:
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init:
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# Update Environment Variables based on matrix/platform
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- set PY_VER=%PYTHON_VERSION:.=%
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- set PYTHONNET_PYDLL=python%PY_VER%.dll
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- set PYTHON=C:\PYTHON%PY_VER%
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- if %PLATFORM%==x64 (set PYTHON=%PYTHON%-x64)
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- set PYTHONNET_PYDLL=%PYTHON%\python%PY_VER%.dll
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# Put desired Python version first in PATH
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- set PATH=%PYTHON%;%PYTHON%\Scripts;%PATH%
@@ -42,7 +42,6 @@ install:
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- pip install --upgrade -r requirements.txt --quiet
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build_script:
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- python setup.py configure
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# Create clean `sdist`. Only used for releases
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- python setup.py --quiet sdist
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- python setup.py bdist_wheel

‎clr.py‎

Lines changed: 2 additions & 37 deletions
Original file line numberDiff line numberDiff line change
@@ -2,40 +2,5 @@
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Legacy Python.NET loader for backwards compatibility
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"""
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5-
def _get_netfx_path():
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import os, sys
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if sys.maxsize > 2 ** 32:
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arch = "amd64"
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else:
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arch = "x86"
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return os.path.join(os.path.dirname(__file__), "pythonnet", "netfx", arch, "clr.pyd")
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def _get_mono_path():
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import os, glob
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paths = glob.glob(os.path.join(os.path.dirname(__file__), "pythonnet", "mono", "clr.*so"))
20-
return paths[0]
21-
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23-
def _load_clr():
24-
import sys
25-
from importlib import util
26-
27-
if sys.platform == "win32":
28-
path = _get_netfx_path()
29-
else:
30-
path = _get_mono_path()
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32-
del sys.modules[__name__]
33-
34-
spec = util.spec_from_file_location("clr", path)
35-
clr = util.module_from_spec(spec)
36-
spec.loader.exec_module(clr)
37-
38-
sys.modules[__name__] = clr
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_load_clr()
5+
from pythonnet import load
6+
load()

‎pythonnet.sln‎

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Original file line numberDiff line numberDiff line change
@@ -6,8 +6,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Python.Runtime", "src\runti
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Console", "src\console\Console.csproj", "{E6B01706-00BA-4144-9029-186AC42FBE9A}"
88
EndProject
9-
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "clrmodule", "src\clrmodule\clrmodule.csproj", "{F9F5FA13-BC52-4C0B-BC1C-FE3C0B8FCCDD}"
10-
EndProject
119
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Python.EmbeddingTest", "src\embed_tests\Python.EmbeddingTest.csproj", "{819E089B-4770-400E-93C6-4F7A35F0EA12}"
1210
EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Python.Test", "src\testing\Python.Test.csproj", "{14EF9518-5BB7-4F83-8686-015BD2CC788E}"

‎pythonnet/__init__.py‎

Lines changed: 71 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,71 @@
1-
def get_assembly_path():
2-
import os
3-
return os.path.dirname(__file__) + "/runtime/Python.Runtime.dll"
1+
import os
2+
import sys
3+
import clr_loader
4+
5+
_RUNTIME = None
6+
_LOADER_ASSEMBLY = None
7+
_FFI = None
8+
_LOADED = False
9+
10+
11+
def set_runtime(runtime):
12+
global _RUNTIME
13+
if _LOADED:
14+
raise RuntimeError("The runtime {runtime} has already been loaded".format(_RUNTIME))
15+
16+
_RUNTIME = runtime
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18+
19+
def set_default_runtime() -> None:
20+
if sys.platform == 'win32':
21+
set_runtime(clr_loader.get_netfx())
22+
else:
23+
set_runtime(clr_loader.get_mono())
24+
25+
26+
def load():
27+
global _FFI, _LOADED, _LOADER_ASSEMBLY
28+
29+
if _LOADED:
30+
return
31+
32+
from .find_libpython import linked_libpython
33+
from os.path import join, dirname
34+
35+
if _RUNTIME is None:
36+
# TODO: Warn, in the future the runtime must be set explicitly, either
37+
# as a config/env variable or via set_runtime
38+
set_default_runtime()
39+
40+
dll_path = join(dirname(__file__), "runtime", "Python.Runtime.dll")
41+
libpython = linked_libpython()
42+
43+
if libpython and _FFI is None and sys.platform != "win32":
44+
# Load and leak libpython handle s.t. the .NET runtime doesn't dlcloses
45+
# it
46+
import posix
47+
48+
import cffi
49+
_FFI = cffi.FFI()
50+
_FFI.dlopen(libpython, posix.RTLD_NODELETE | posix.RTLD_LOCAL)
51+
52+
_LOADER_ASSEMBLY = _RUNTIME.get_assembly(dll_path)
53+
54+
func = _LOADER_ASSEMBLY["Python.Runtime.Loader.Initialize"]
55+
if func(f"{libpython or ''}".encode("utf8")) != 0:
56+
raise RuntimeError("Failed to initialize Python.Runtime.dll")
57+
58+
import atexit
59+
atexit.register(unload)
60+
61+
62+
def unload():
63+
global _RUNTIME
64+
if _LOADER_ASSEMBLY is not None:
65+
func = _LOADER_ASSEMBLY["Python.Runtime.Loader.Shutdown"]
66+
if func(b"") != 0:
67+
raise RuntimeError("Failed to call Python.NET shutdown")
68+
69+
if _RUNTIME is not None:
70+
# TODO: Add explicit `close` to clr_loader
71+
_RUNTIME = None

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