. .venv/bin/activate
uv run fastapi dev
py2wasm main.py -o main.wasm
- https://zenn.dev/pinto0309/scraps/2fce2c824efa95
- https://github.com/wasmerio/py2wasm?tab=readme-ov-file#nuitka-user-manual
Nuitka is the Python compiler. It is written in Python. It is a seamless replacement or extension to the Python interpreter and compiles every construct that Python 2 (2.6, 2.7) and Python 3 (3.4 - 3.11) have, when itself run with that Python version.
より、python3.11でないと動かないらしいので、3.12から3.11に変更
diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 90b8c18..73ae5b9 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,5 +1,5 @@
-ARG VARIANT=3-bullseye
+ARG VARIANT=3.11-bullseye
FROM mcr.microsoft.com/vscode/devcontainers/python:${VARIANT}
- 足りないライブラリがあるらしいので、OSに追加インストールする必要があった
sudo apt-get update
sudo apt-get install patchelf
- この状態で5分以上止まっている
- wasmファイルが出力されるまで10分くらいは掛かった
- 2回目以降のpy2wasm実行で省略される部分があるかと期待したものの、そうではなさそうだった
- wasm出力に毎回15分くらい待たされるのはかなりストレスかもしれない
- wasm出力をGithub ActionsのCDスクリプトで行う場合、実行時間をかなり取られることになり、コスト増が懸念点となるかもしれないと感じた
- ファイルサイズは77MB
- 想像よりは大きかったがコンテナイメージと比較するとかなり小さい
- devcontainer featuresにあったので
devcontainer.jsonに追記してwasmtimeを使ってみた
- microsoftのdevcontainer向けdocker imageで
python:3.11-bullseyeを採用しており、glibcのバージョンが2.31だったことがwasmerインストールの障害となった
DockerfileのFROMをpython:3.11-bookwormに変更することでglibcが2.36となった
curl https://get.wasmer.io -sSfL | sh
- 無事、wasmerがインストールできた
- wasmerでwasmファイルを実行したが、wasmtimeと同様textwrapで引っかかった
- FastAPIを使うとtextwrapモジュールがwasm実行時の制約になることが分かった
- Flaskで組んだ場合にどうなるかを試してみる
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello_world():
return "<p>Hello, World!</p>"- py2wasmでwasmバイナリを作成
- Flask版wasmのサイズは45MBだった
- 実行はできたものの
localhost:5000をブラウザで開いてもローディングが終わらず
wasmer run main_flask.wasm
wasmtime main_flask.wasm
- 以下のようなエラーログが出て実行できなかった
wasmtime実行時のコンソールログ
Error: failed to run main module `main_flask.wasm`
Caused by:
0: failed to invoke command default
1: error while executing at wasm backtrace:
0: 0x15a55 - <unknown>!binary_op1
1: 0x16b24 - <unknown>!PyNumber_InPlaceAdd
2: 0x13b78a9 - <unknown>!_nuitka_loader_find_spec
3: 0x80fa5 - <unknown>!cfunction_call
4: 0x318e8 - <unknown>!_PyObject_MakeTpCall
5: 0x32016 - <unknown>!PyObject_Vectorcall
6: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
7: 0x12baa4 - <unknown>!_PyEval_Vector
8: 0x32491 - <unknown>!_PyFunction_Vectorcall
9: 0x336c7 - <unknown>!object_vacall
10: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
11: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
12: 0x124deb - <unknown>!_PyEval_EvalFrameDefault
13: 0x11e34b - <unknown>!PyEval_EvalCode
14: 0x164986 - <unknown>!PyImport_ExecCodeModuleObject
15: 0x164b54 - <unknown>!PyImport_ExecCodeModuleWithPathnames
16: 0x164bd7 - <unknown>!PyImport_ExecCodeModuleEx
17: 0x139b488 - <unknown>!_EXECUTE_EMBEDDED_MODULE
18: 0x13b7cd4 - <unknown>!_nuitka_loader_exec_module
19: 0x80fa5 - <unknown>!cfunction_call
20: 0x318e8 - <unknown>!_PyObject_MakeTpCall
21: 0x32016 - <unknown>!PyObject_Vectorcall
22: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
23: 0x12baa4 - <unknown>!_PyEval_Vector
24: 0x32491 - <unknown>!_PyFunction_Vectorcall
25: 0x336c7 - <unknown>!object_vacall
26: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
27: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
28: 0x124deb - <unknown>!_PyEval_EvalFrameDefault
29: 0x11e34b - <unknown>!PyEval_EvalCode
30: 0x164986 - <unknown>!PyImport_ExecCodeModuleObject
31: 0x164b54 - <unknown>!PyImport_ExecCodeModuleWithPathnames
32: 0x164bd7 - <unknown>!PyImport_ExecCodeModuleEx
33: 0x139b488 - <unknown>!_EXECUTE_EMBEDDED_MODULE
34: 0x13b7cd4 - <unknown>!_nuitka_loader_exec_module
35: 0x80fa5 - <unknown>!cfunction_call
36: 0x318e8 - <unknown>!_PyObject_MakeTpCall
37: 0x32016 - <unknown>!PyObject_Vectorcall
38: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
39: 0x12baa4 - <unknown>!_PyEval_Vector
40: 0x32491 - <unknown>!_PyFunction_Vectorcall
41: 0x336c7 - <unknown>!object_vacall
42: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
43: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
44: 0x124deb - <unknown>!_PyEval_EvalFrameDefault
45: 0x11e34b - <unknown>!PyEval_EvalCode
46: 0x164986 - <unknown>!PyImport_ExecCodeModuleObject
47: 0x164b54 - <unknown>!PyImport_ExecCodeModuleWithPathnames
48: 0x164bd7 - <unknown>!PyImport_ExecCodeModuleEx
49: 0x139b488 - <unknown>!_EXECUTE_EMBEDDED_MODULE
50: 0x13b7cd4 - <unknown>!_nuitka_loader_exec_module
51: 0x80fa5 - <unknown>!cfunction_call
52: 0x318e8 - <unknown>!_PyObject_MakeTpCall
53: 0x32016 - <unknown>!PyObject_Vectorcall
54: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
55: 0x12baa4 - <unknown>!_PyEval_Vector
56: 0x32491 - <unknown>!_PyFunction_Vectorcall
57: 0x336c7 - <unknown>!object_vacall
58: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
59: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
60: 0x119d63 - <unknown>!builtin___import__
61: 0x80736 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
62: 0x31ece - <unknown>!_PyVectorcall_Call
63: 0x31e77 - <unknown>!PyVectorcall_Call
64: 0x80f50 - <unknown>!cfunction_call
65: 0x37538a - <unknown>!CALL_FUNCTION_WITH_ARGS5
66: 0x389790 - <unknown>!IMPORT_MODULE5
67: 0x125c05d - <unknown>!modulecode_werkzeug$serving
68: 0x139b4e1 - <unknown>!_EXECUTE_EMBEDDED_MODULE
69: 0x13b7cd4 - <unknown>!_nuitka_loader_exec_module
70: 0x80fa5 - <unknown>!cfunction_call
71: 0x318e8 - <unknown>!_PyObject_MakeTpCall
72: 0x32016 - <unknown>!PyObject_Vectorcall
73: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
74: 0x12baa4 - <unknown>!_PyEval_Vector
75: 0x32491 - <unknown>!_PyFunction_Vectorcall
76: 0x336c7 - <unknown>!object_vacall
77: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
78: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
79: 0x119d63 - <unknown>!builtin___import__
80: 0x80736 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
81: 0x31ece - <unknown>!_PyVectorcall_Call
82: 0x31e77 - <unknown>!PyVectorcall_Call
83: 0x80f50 - <unknown>!cfunction_call
84: 0x37538a - <unknown>!CALL_FUNCTION_WITH_ARGS5
85: 0x389790 - <unknown>!IMPORT_MODULE5
86: 0xe50403 - <unknown>!modulecode_werkzeug
87: 0x139b4e1 - <unknown>!_EXECUTE_EMBEDDED_MODULE
88: 0x13b7cd4 - <unknown>!_nuitka_loader_exec_module
89: 0x80fa5 - <unknown>!cfunction_call
90: 0x318e8 - <unknown>!_PyObject_MakeTpCall
91: 0x32016 - <unknown>!PyObject_Vectorcall
92: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
93: 0x12baa4 - <unknown>!_PyEval_Vector
94: 0x32491 - <unknown>!_PyFunction_Vectorcall
95: 0x336c7 - <unknown>!object_vacall
96: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
97: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
98: 0x119d63 - <unknown>!builtin___import__
99: 0x80736 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
100: 0x31ece - <unknown>!_PyVectorcall_Call
101: 0x3223c - <unknown>!_PyObject_Call
102: 0x322fc - <unknown>!PyObject_Call
103: 0x129777 - <unknown>!_PyEval_EvalFrameDefault
104: 0x12baa4 - <unknown>!_PyEval_Vector
105: 0x32491 - <unknown>!_PyFunction_Vectorcall
106: 0x336c7 - <unknown>!object_vacall
107: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
108: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
109: 0x119d63 - <unknown>!builtin___import__
110: 0x80736 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
111: 0x31ece - <unknown>!_PyVectorcall_Call
112: 0x31e77 - <unknown>!PyVectorcall_Call
113: 0x80f50 - <unknown>!cfunction_call
114: 0x37538a - <unknown>!CALL_FUNCTION_WITH_ARGS5
115: 0x7bf629 - <unknown>!modulecode_flask$globals
116: 0x139b4e1 - <unknown>!_EXECUTE_EMBEDDED_MODULE
117: 0x13b7cd4 - <unknown>!_nuitka_loader_exec_module
118: 0x80fa5 - <unknown>!cfunction_call
119: 0x318e8 - <unknown>!_PyObject_MakeTpCall
120: 0x32016 - <unknown>!PyObject_Vectorcall
121: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
122: 0x12baa4 - <unknown>!_PyEval_Vector
123: 0x32491 - <unknown>!_PyFunction_Vectorcall
124: 0x336c7 - <unknown>!object_vacall
125: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
126: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
127: 0x119d63 - <unknown>!builtin___import__
128: 0x80736 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
129: 0x31ece - <unknown>!_PyVectorcall_Call
130: 0x31e77 - <unknown>!PyVectorcall_Call
131: 0x80f50 - <unknown>!cfunction_call
132: 0x37538a - <unknown>!CALL_FUNCTION_WITH_ARGS5
133: 0x389790 - <unknown>!IMPORT_MODULE5
134: 0x7d64c6 - <unknown>!modulecode_flask$json
135: 0x139b4e1 - <unknown>!_EXECUTE_EMBEDDED_MODULE
136: 0x13b7cd4 - <unknown>!_nuitka_loader_exec_module
137: 0x80fa5 - <unknown>!cfunction_call
138: 0x318e8 - <unknown>!_PyObject_MakeTpCall
139: 0x32016 - <unknown>!PyObject_Vectorcall
140: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
141: 0x12baa4 - <unknown>!_PyEval_Vector
142: 0x32491 - <unknown>!_PyFunction_Vectorcall
143: 0x336c7 - <unknown>!object_vacall
144: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
145: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
146: 0x119d63 - <unknown>!builtin___import__
147: 0x80736 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
148: 0x31ece - <unknown>!_PyVectorcall_Call
149: 0x3223c - <unknown>!_PyObject_Call
150: 0x322fc - <unknown>!PyObject_Call
151: 0x129777 - <unknown>!_PyEval_EvalFrameDefault
152: 0x12baa4 - <unknown>!_PyEval_Vector
153: 0x32491 - <unknown>!_PyFunction_Vectorcall
154: 0x336c7 - <unknown>!object_vacall
155: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
156: 0x166000 - <unknown>!PyImport_ImportModuleLevelObject
157: 0x119d63 - <unknown>!builtin___import__
158: 0x80736 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
159: 0x31ece - <unknown>!_PyVectorcall_Call
160: 0x31e77 - <unknown>!PyVectorcall_Call
161: 0x80f50 - <unknown>!cfunction_call
162: 0x37538a - <unknown>!CALL_FUNCTION_WITH_ARGS5
163: 0x389790 - <unknown>!IMPORT_MODULE5
164: 0x72c151 - <unknown>!modulecode_flask
165: 0x139b4e1 - <unknown>!_EXECUTE_EMBEDDED_MODULE
166: 0x13b7cd4 - <unknown>!_nuitka_loader_exec_module
167: 0x80fa5 - <unknown>!cfunction_call
168: 0x318e8 - <unknown>!_PyObject_MakeTpCall
169: 0x32016 - <unknown>!PyObject_Vectorcall
170: 0x129c61 - <unknown>!_PyEval_EvalFrameDefault
171: 0x12baa4 - <unknown>!_PyEval_Vector
172: 0x32491 - <unknown>!_PyFunction_Vectorcall
173: 0x336c7 - <unknown>!object_vacall
174: 0x3344a - <unknown>!PyObject_CallMethodObjArgs
175: 0x165cb5 - <unknown>!PyImport_ImportModuleLevelObject
176: 0x119d63 - <unknown>!builtin___import__
177: 0x80736 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
178: 0x31ece - <unknown>!_PyVectorcall_Call
179: 0x31e77 - <unknown>!PyVectorcall_Call
180: 0x80f50 - <unknown>!cfunction_call
181: 0x37538a - <unknown>!CALL_FUNCTION_WITH_ARGS5
182: 0x372a74 - <unknown>!modulecode___main__
183: 0x139b4e1 - <unknown>!_EXECUTE_EMBEDDED_MODULE
184: 0x139ac3d - <unknown>!EXECUTE_MAIN_MODULE
185: 0x1399c5f - <unknown>!main
186: 0x344330 - <unknown>!__main_void
187: 0x12ba5 - <unknown>!_start
note: using the `WASMTIME_BACKTRACE_DETAILS=1` environment variable may show more debugging information
2: wasm trap: indirect call type mismatch