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Single threaded #3

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604e239
Add functions relevant to sys.set_trace callbacks to ASYNC_FUNCS to s…
Mar 6, 2021
fa0d0d7
Turn off threading
Mar 7, 2021
b23d1e3
Force dist in there for cdn-ness ;)
Mar 7, 2021
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2 changes: 1 addition & 1 deletion customize/coldbrew_settings.py
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Expand Up @@ -49,7 +49,7 @@

# Controls whether to enable threading support.
# If you turn this off, the output size is smaller, but threading support will be gone.
ENABLE_THREADING = True
ENABLE_THREADING = False

######################################################################
### Internal Settings
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1 change: 1 addition & 0 deletions dist/coldbrew.js
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103 changes: 103 additions & 0 deletions dist/index.html
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@@ -0,0 +1,103 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<style type="text/css">
body {
width: 600px;
margin: 0 auto;
padding-top: 20px;
text-align: center;
font-family: Roboto, Avenir, Myriad Pro, Futura, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.pre-code {
padding: 5px 0;
}

.hide-true {
display: none;
}
</style>
</head>
<body>
<img src="images/coldbrew.png" alt="coldbrew" height="120">
<h1>Coldbrew: Run Python in JavaScript</h1>
<p>
Coldbrew is installed on this page through <a href="coldbrew.js"><code>coldbrew.js</code></a>.<br/><br/>Open the browser console and try running some of these examples in the console.<br/><br/>Start by loading Coldbrew with:
<div class="pre-code"></div>
<code>
Coldbrew.load().then(function() { console.log("Finished loading Coldbrew!") });
</code>
</p>
<hr />
<p>
Once loaded, you can interact with Python. For example, to print the version of Python run the following in the browser console:<br/>
<div class="pre-code"></div>
<code>
Coldbrew.run("import sys");<br/>
Coldbrew.run("print('The current Python version is:', sys.version)");
</code>
</p>
<hr />
<p>
You can also issue multiple commands in the same function call, to see this, run the following in the browser console:<br/>
<div class="pre-code"></div>
<code>
Coldbrew.run(["x = [i for i in range(10)]","print(x)"].join("\n"));
</code>
</p>
<hr />
<p>
You can run a Python file like <a href="https://github.com/plasticityai/coldbrew/blob/master/src/examples/add.py">add.py</a> with arguments and environment variables specified, to see this, run the following in the browser console:<br/>
<div class="pre-code"></div>
<code>
Coldbrew.runFile('add.py', {cwd:'/coldbrew/examples', env:{}, args:['5', '15', '-v']});
</code>
</p>
<hr />
<p class="hide-SMALL_BUT_NO_ASYNC">
You can access HTTP connections in Python and the requests will be handled by JavaScript's XHR / AJAX requests:<br/>
<div class="pre-code hide-SMALL_BUT_NO_ASYNC"></div>
<code class="hide-SMALL_BUT_NO_ASYNC">
Coldbrew.runAsync('import urllib.request; print(urllib.request.urlopen("http://localhost:8000/remote/example.txt").read())');
</code>
</p>
<hr class="hide-SMALL_BUT_NO_ASYNC"/>
<p class="hide-SMALL_BUT_NO_ASYNC">
You can export Python variables (objects, classes, functions, modules, primitives, etc.) and use them like a native JavaScript variable using Coldbrew's <a href="https://github.com/plasticityai/coldbrew#bridge-variables">bridge variables</a>, like, for example, the <a href="https://docs.python.org/3.1/library/collections.html#counter-objects">Counter</a> class:<br/>
<div class="pre-code hide-SMALL_BUT_NO_ASYNC"></div>
<code class="hide-SMALL_BUT_NO_ASYNC">
Coldbrew.run("from collections import Counter");<br/>
var Counter = Coldbrew.getVariable("Counter");<br/>
var c = new Counter(['red', 'blue', 'red', 'green', 'blue', 'blue']);<br/>
console.log(c.mostCommon(2));
</code>
</p>
<hr class="hide-SMALL_BUT_NO_ASYNC"/>
<p class="hide-SMALL_BUT_NO_ASYNC">
You can run Python code asynchronously, which won't lock up the browser for long-running code. <br/><br/>See the difference between running this:<br/>
<div class="pre-code hide-SMALL_BUT_NO_ASYNC"></div>
<code class="hide-SMALL_BUT_NO_ASYNC">
for(var i=0; i<5; i++) { setTimeout(function() { console.log("Every 1 second for 5 seconds from JavaScript.") }, (i+1)*1000); }<br/>
Coldbrew.<b>runAsync</b>('from time import sleep\nfor i in range(5):\n\tsleep(1)\n\tprint("Every 1 second for 5 seconds from Python.")');
</code>
<p class="hide-SMALL_BUT_NO_ASYNC">And this:</p>
<div class="pre-code hide-SMALL_BUT_NO_ASYNC"></div>
<code class="hide-SMALL_BUT_NO_ASYNC">
for(var i=0; i<5; i++) { setTimeout(function() { console.log("Every 1 second for 5 seconds from JavaScript.") }, (i+1)*1000); }<br/>
Coldbrew.<b>run</b>('from time import sleep\nfor i in range(5):\n\tsleep(1)\n\tprint("Every 1 second for 5 seconds from Python.")');
</code>
</p>
<hr class="hide-SMALL_BUT_NO_ASYNC"/>
<p>
See more documentation on <a href="https://github.com/plasticityai/coldbrew">GitHub</a> <br />for more information on interacting with the virtual filesystem, installing modules, interacting with the environment, running Python asynchronously, communicating bi-directionally between the two languages, building a custom Coldbrew Python environment, and more.
</p>

<script src='coldbrew.js'></script>
<script>
console.warn("Coldbrew is loading...");
Coldbrew.load({threadWorkers: 4});
</script>
</body>
</html>
2 changes: 1 addition & 1 deletion src/Makefile
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Expand Up @@ -18,7 +18,7 @@ FAST_AND_SMALL_BUT_NO_ASYNC=$(shell python -c "import sys; sys.path.append('../c

ASYNC_DEBUG ?= 0
ALWAYS_ASYNC_FUNCS='export_runAsync\nexport__runFileAsync\n_Coldbrew__sleep\n_coldbrew_yield_to_javascript\n_Coldbrew__run'
ASYNC_FUNCS='PyCFunction_Call\nPyObject_Call\nPyEval_EvalCode\nPyEval_EvalCodeEx\nPyEval_EvalFrame\nPyEval_EvalFrameEx\nPyImport_ExecCodeModule\nPyImport_ExecCodeModuleEx\nPyImport_ExecCodeModuleObject\nPyImport_ExecCodeModuleWithPathnames\nPyImport_ImportFrozenModule\nPyImport_ImportFrozenModuleObject\nPyRun_AnyFile\nPyRun_AnyFileEx\nPyRun_AnyFileExFlags\nPyRun_AnyFileFlags\nPyRun_File\nPyRun_FileEx\nPyRun_FileExFlags\nPyRun_FileFlags\nPyRun_InteractiveLoop\nPyRun_InteractiveLoopFlags\nPyRun_InteractiveOne\nPyRun_InteractiveOneFlags\nPyRun_InteractiveOneObject\nPyRun_SimpleFile\nPyRun_SimpleFileEx\nPyRun_SimpleFileExFlags\nPyRun_SimpleString\nPyRun_SimpleStringFlags\nPyRun_String\nPyRun_StringFlags\nPy_FrozenMain\nPy_Initialize\nPy_InitializeEx\nPy_Main\nPy_NewInterpreter\n_PyEval_EvalCodeWithName\n_PyGen_Finalize\n_PyGen_Send\n_Py_InitializeEx_Private\n_imp_init_frozen\nbuiltin___build_class__\nbuiltin_eval\nbuiltin_exec\ncoro_wrapper_close\ncoro_wrapper_iternext\ncoro_wrapper_send\ncoro_wrapper_throw\nfast_function\nframe_clear\nfunction_call\ngen_close\ngen_close_iter\ngen_iternext\ngen_send_ex\ngen_throw\nimport_init\nzipimporter_load_module\nPyFile_GetLine\nbuiltin_input\n_PyEval_EvalFrameDefault\nPyImport_ImportModuleLevelObject\n_PyObject_CallMethodIdObjArgs\nobject_vacall\n_PyFunction_Vectorcall\nfunction_code_fastcall\ncall_function\nPyVectorcall_Call\nmethod_vectorcall\ncfunction_call_varargs\n_PyObject_MakeTpCall\n_PyObject_FastCallDict\n_PyObject_Call_Prepend\nslot_tp_init\ntype_call\ncfunction_vectorcall_FASTCALL_KEYWORDS\nslot_tp_getattr_hook\nPyObject_CallFunctionObjArgs\nslot_tp_finalize\nsubtype_dealloc\nframe_dealloc\n_PyObject_GenericGetAttrWithDict\nproperty_descr_get\n_PyObject_FastCall_Prepend\nslot_mp_subscript\nPyObject_GetItem\ntupledealloc\n_PyObject_GetMethod\ncfunction_vectorcall_FASTCALL\ncfunction_vectorcall_O\nbuiltin_repr\nPyObject_Repr\nslot_tp_repr\nPyObject_SetAttr\nslot_tp_setattro\nbuiltin_next\nPyObject_SetItem\nslot_mp_ass_subscript\nPyObject_DelItem\nlist___init__\nlist_extend\nPyObject_LengthHint\nslot_sq_length\ndict_ass_sub\n_PyDict_DelItem_KnownHash\nslot_tp_call\nbuiltin_dir\nslot_sq_contains\nPyDict_SetItem\ninsertdict'
ASYNC_FUNCS='call_trampoline\ntrace_trampoline\n_PyEval_SetTrace\ncall_trace\ncall_trace_protected\nPyCFunction_Call\nPyObject_Call\nPyEval_EvalCode\nPyEval_EvalCodeEx\nPyEval_EvalFrame\nPyEval_EvalFrameEx\nPyImport_ExecCodeModule\nPyImport_ExecCodeModuleEx\nPyImport_ExecCodeModuleObject\nPyImport_ExecCodeModuleWithPathnames\nPyImport_ImportFrozenModule\nPyImport_ImportFrozenModuleObject\nPyRun_AnyFile\nPyRun_AnyFileEx\nPyRun_AnyFileExFlags\nPyRun_AnyFileFlags\nPyRun_File\nPyRun_FileEx\nPyRun_FileExFlags\nPyRun_FileFlags\nPyRun_InteractiveLoop\nPyRun_InteractiveLoopFlags\nPyRun_InteractiveOne\nPyRun_InteractiveOneFlags\nPyRun_InteractiveOneObject\nPyRun_SimpleFile\nPyRun_SimpleFileEx\nPyRun_SimpleFileExFlags\nPyRun_SimpleString\nPyRun_SimpleStringFlags\nPyRun_String\nPyRun_StringFlags\nPy_FrozenMain\nPy_Initialize\nPy_InitializeEx\nPy_Main\nPy_NewInterpreter\n_PyEval_EvalCodeWithName\n_PyGen_Finalize\n_PyGen_Send\n_Py_InitializeEx_Private\n_imp_init_frozen\nbuiltin___build_class__\nbuiltin_eval\nbuiltin_exec\ncoro_wrapper_close\ncoro_wrapper_iternext\ncoro_wrapper_send\ncoro_wrapper_throw\nfast_function\nframe_clear\nfunction_call\ngen_close\ngen_close_iter\ngen_iternext\ngen_send_ex\ngen_throw\nimport_init\nzipimporter_load_module\nPyFile_GetLine\nbuiltin_input\n_PyEval_EvalFrameDefault\nPyImport_ImportModuleLevelObject\n_PyObject_CallMethodIdObjArgs\nobject_vacall\n_PyFunction_Vectorcall\nfunction_code_fastcall\ncall_function\nPyVectorcall_Call\nmethod_vectorcall\ncfunction_call_varargs\n_PyObject_MakeTpCall\n_PyObject_FastCallDict\n_PyObject_Call_Prepend\nslot_tp_init\ntype_call\ncfunction_vectorcall_FASTCALL_KEYWORDS\nslot_tp_getattr_hook\nPyObject_CallFunctionObjArgs\nslot_tp_finalize\nsubtype_dealloc\nframe_dealloc\n_PyObject_GenericGetAttrWithDict\nproperty_descr_get\n_PyObject_FastCall_Prepend\nslot_mp_subscript\nPyObject_GetItem\ntupledealloc\n_PyObject_GetMethod\ncfunction_vectorcall_FASTCALL\ncfunction_vectorcall_O\nbuiltin_repr\nPyObject_Repr\nslot_tp_repr\nPyObject_SetAttr\nslot_tp_setattro\nbuiltin_next\nPyObject_SetItem\nslot_mp_ass_subscript\nPyObject_DelItem\nlist___init__\nlist_extend\nPyObject_LengthHint\nslot_sq_length\ndict_ass_sub\n_PyDict_DelItem_KnownHash\nslot_tp_call\nbuiltin_dir\nslot_sq_contains\nPyDict_SetItem\ninsertdict'
ASYNC_WHITELIST=$(shell (echo -n '["'; (echo $(ALWAYS_ASYNC_FUNCS); echo $(ASYNC_FUNCS)) | cat | sed -e ':a;N;$$!ba;s/\n/",\n"/g'; echo -n '"]') | sed -e ':a;N;$$!ba;s/\n"]/"]/g')

DEBUG_MODE=$(shell python -c "import sys; sys.path.append('../customize/'); from coldbrew_settings import *; print(str((DEBUG_MODE or bool(int('$(ASYNC_DEBUG)')))).lower())")
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