mirror of
https://github.com/pyscript/pyscript.git
synced 2022-05-01 19:47:48 +03:00
385 lines
11 KiB
TypeScript
385 lines
11 KiB
TypeScript
import { getLastPath } from "./utils";
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// @ts-nocheck
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// @ts-ignore
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let pyodideReadyPromise;
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let pyodide;
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let additional_definitions = `
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from js import document, setInterval, console, setTimeout
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import micropip
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import time
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import asyncio
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import io, base64, sys
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loop = asyncio.get_event_loop()
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class PyScript:
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loop = loop
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@staticmethod
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def write(element_id, value, append=False, exec_id=0):
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"""Writes value to the element with id "element_id"""
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console.log(f"APPENDING: {append} ==> {element_id} --> {value}")
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if append:
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child = document.createElement('div');
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element = document.querySelector(f'#{element_id}');
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if not element:
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return
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exec_id = exec_id or element.childElementCount + 1
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element_id = child.id = f"{element_id}-{exec_id}";
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element.appendChild(child);
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if hasattr(value, "savefig"):
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console.log(f"FIGURE: {value}")
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buf = io.BytesIO()
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value.savefig(buf, format='png')
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buf.seek(0)
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img_str = 'data:image/png;base64,' + base64.b64encode(buf.read()).decode('UTF-8')
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document.getElementById(element_id).innerHTML = f'<div><img id="plt" src="{img_str}"/></div>'
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elif hasattr(value, "startswith") and value.startswith("data:image"):
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document.getElementById(element_id).innerHTML = f'<div><img id="plt" src="{value}"/></div>'
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else:
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document.getElementById(element_id).innerHTML = value;
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@staticmethod
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def run_until_complete(f):
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p = loop.run_until_complete(f)
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class Element:
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def __init__(self, element_id, element=None):
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self._id = element_id
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self._element = element
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@property
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def id(self):
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return self._id
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@property
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def element(self):
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"""Return the dom element"""
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if not self._element:
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self._element = document.querySelector(f'#{self._id}');
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return self._element
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@property
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def value(self):
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return self.element.value
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@property
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def innerHtml(self):
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return self.element.innerHtml
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def write(self, value, append=False):
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console.log(f"Element.write: {value} --> {append}")
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# TODO: it should be the opposite... pyscript.write should use the Element.write
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# so we can consolidate on how we write depending on the element type
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pyscript.write(self._id, value, append=append)
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def clear(self):
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if hasattr(self.element, 'value'):
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self.element.value = ''
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else:
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self.write("", append=False)
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def select(self, query, from_content=False):
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el = self.element
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if from_content:
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el = el.content
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_el = el.querySelector(query)
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if _el:
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return Element(_el.id, _el)
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else:
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console.log(f"WARNING: can't find element matching query {query}")
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def clone(self, new_id=None, to=None):
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if new_id is None:
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new_id = self.element.id
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clone = self.element.cloneNode(True);
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clone.id = new_id;
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if to:
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to.element.appendChild(clone)
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# Inject it into the DOM
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self.element.after(clone);
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return Element(clone.id, clone)
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def remove_class(self, classname):
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if isinstance(classname, list):
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for cl in classname:
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self.remove_class(cl)
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else:
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self.element.classList.remove(classname)
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def add_class(self, classname):
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self.element.classList.add(classname)
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def add_classes(element, class_list):
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for klass in class_list.split(' '):
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element.classList.add(klass)
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def create(what, id_=None, classes=''):
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element = document.createElement(what)
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if id_:
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element.id = id_
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add_classes(element, classes)
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return Element(id_, element)
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class PyWidgetTheme:
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def __init__(self, main_style_classes):
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self.main_style_classes = main_style_classes
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def theme_it(self, widget):
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for klass in self.main_style_classes.split(' '):
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widget.classList.add(klass)
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class PyItemTemplate(Element):
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label_fields = None
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def __init__(self, data, labels=None, state_key=None, parent=None):
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self.data = data
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self.register_parent(parent)
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if not labels:
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labels = list(self.data.keys())
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self.labels = labels
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self.state_key = state_key
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super().__init__(self._id)
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def register_parent(self, parent):
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self._parent = parent
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if parent:
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self._id = f"{self._parent._id}-c-{len(self._parent._children)}"
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self.data['id'] = self._id
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else:
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self._id = None
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def create(self):
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console.log('creating section')
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new_child = create('section', self._id, "task bg-white my-1")
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console.log('creating values')
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console.log('creating innerHtml')
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new_child._element.innerHTML = f"""
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<label for="flex items-center p-2 ">
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<input class="mr-2" type="checkbox" class="task-check">
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<p class="m-0 inline">{self.render_content()}</p>
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</label>
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"""
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console.log('returning')
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return new_child
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def on_click(self, evt):
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pass
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def pre_append(self):
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pass
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def post_append(self):
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self.element.click = self.on_click
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self.element.onclick = self.on_click
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self._post_append()
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def _post_append(self):
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pass
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def strike(self, value, extra=None):
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if value:
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self.add_class("line-through")
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else:
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self.remove_class("line-through")
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def render_content(self):
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return ' - '.join([self.data[f] for f in self.labels])
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class PyListTemplate:
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theme = PyWidgetTheme("flex flex-col-reverse mt-8 mx-8")
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item_class = PyItemTemplate
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def __init__(self, parent):
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self.parent = parent
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self._children = []
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self._id = self.parent.id
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@property
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def children(self):
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return self._children
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@property
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def data(self):
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return [c.data for c in self._children]
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def render_children(self):
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out = []
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binds = {}
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for i, c in enumerate(self._children):
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txt = c.element.innerHTML
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rnd = str(time.time()).replace(".", "")[-5:]
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new_id = f"{c.element.id}-{i}-{rnd}"
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binds[new_id] = c.element.id
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txt = txt.replace(">", f" id='{new_id}'>")
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print(txt)
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def foo(evt):
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console.log(evt)
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evtEl = evt.srcElement
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srcEl = Element(binds[evtEl.id])
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srcEl.element.onclick()
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evtEl.classList = srcEl.element.classList
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for new_id, old_id in binds.items():
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Element(new_id).element.onclick = foo
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def connect(self):
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self.md = main_div = document.createElement('div')
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main_div.id = self._id + "-list-tasks-container"
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if self.theme:
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self.theme.theme_it(main_div)
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self.parent.appendChild(main_div)
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def add(self, *args, **kws):
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if not isinstance(args[0], self.item_class):
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child = self.item_class(*args, **kws)
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else:
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child = args[0]
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child.register_parent(self)
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return self._add(child)
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def _add(self, child_elem):
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console.log("appending child", child_elem.element)
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self.pre_child_append(child_elem)
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child_elem.pre_append()
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self._children.append(child_elem)
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self.md.appendChild(child_elem.create().element)
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child_elem.post_append()
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self.child_appended(child_elem)
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return child_elem
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def pre_child_append(self, child):
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pass
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def child_appended(self, child):
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"""Overwrite me to define logic"""
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pass
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class OutputCtxManager:
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def __init__(self, out=None, output_to_console=True, append=True):
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self._out = out
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self._prev = out
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self.output_to_console = output_to_console
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self._append = append
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def change(self, out=None, err=None, output_to_console=True, append=True):
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self._prevt = self._out
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self._out = out
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self.output_to_console = output_to_console
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self._append = append
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console.log("----> changed out to", self._out, self._append)
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def revert(self):
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console.log("----> reverted")
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self._out = self._prev
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def write(self, txt):
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console.log('writing to', self._out, txt, self._append)
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if self._out:
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pyscript.write(self._out, txt, append=self._append)
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if self.output_to_console:
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console.log(self._out, txt)
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class OutputManager:
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def __init__(self, out=None, err=None, output_to_console=True, append=True):
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sys.stdout = self._out_manager = OutputCtxManager(out, output_to_console, append)
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sys.strerr = self._err_manager = OutputCtxManager(err, output_to_console, append)
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self.output_to_console = output_to_console
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self._append = append
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def change(self, out=None, err=None, output_to_console=True, append=True):
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self._out_manager.change(out, output_to_console, append)
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sys.stdout = self._out_manager
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self._err_manager.change(err, output_to_console, append)
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sys.stderr = self._err_manager
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self.output_to_console = output_to_console
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self.append = append
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def revert(self):
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self._out_manager.revert()
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self._err_manager.revert()
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sys.stdout = self._out_manager
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sys.stdout = self._err_manager
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console.log("----> reverted")
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pyscript = PyScript()
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output_manager = OutputManager()
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`
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let loadInterpreter = async function(): Promise<any> {
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console.log("creating pyodide runtime");
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/* @ts-ignore */
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pyodide = await loadPyodide({
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stdout: console.log,
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stderr: console.log
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});
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// now that we loaded, add additional convenience fuctions
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console.log("loading micropip");
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await pyodide.loadPackage("micropip");
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console.log('loading pyscript module');
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// await pyodide.runPythonAsync(`
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// from pyodide.http import pyfetch
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// response = await pyfetch("/build/pyscript.py")
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// with open("pyscript.py", "wb") as f:
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// content = await response.bytes()
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// print(content)
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// f.write(content)
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// `)
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// let pkg = pyodide.pyimport("pyscript");
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console.log("creating additional definitions");
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let output = pyodide.runPython(additional_definitions);
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console.log("done setting up environment");
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/* @ts-ignore */
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return pyodide;
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}
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let loadPackage = async function(package_name: string[] | string, runtime: any): Promise<any> {
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let micropip = pyodide.globals.get('micropip');
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await micropip.install(package_name)
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micropip.destroy()
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}
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let loadFromFile = async function(s: string, runtime: any): Promise<any> {
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let filename = getLastPath(s);
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await runtime.runPythonAsync(`
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from pyodide.http import pyfetch
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response = await pyfetch("`+s+`")
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content = await response.bytes()
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with open("`+filename+`", "wb") as f:
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f.write(content)
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`)
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runtime.pyimport(filename.replace(".py", ""));
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}
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export {loadInterpreter, pyodideReadyPromise, loadPackage, loadFromFile}
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