def templatefile(self, line):
"""creates a file from template stored as a file
"""
args = parse_argstring(self.templatefile, line)
if not os.path.isfile(args.template):
raise FileNotFoundError(args.template)
with open(args.template) as f:
fread = f.read()
output = args.output
p = params()
if args.format == 'mustache':
result = mustache(fread, p, output)
elif args.foramt == 'fstring':
result = fstring(fread, p, output)
else:
raise ValueError(
f'Unsupported format: {args.format}. Must be: mustache|fstring'
)
if output and args.verbose:
return display(FileLink(output), Code(result))
elif output:
return display(FileLink(output))
else:
return display(Code(result))
def ask(_):
"""Handle question requests"""
output.clear_output(wait=True)
with output:
display(Code("Asking...", language="text"))
context = data[docslider.value]["paragraphs"][
paraslider.value]["context"]
try:
results_raw = answer_fetcher(context, question.value)
except Exception as err:
output.clear_output(wait=True)
output.append_stderr("Failed to call answer fetcher\n")
output.append_stderr(traceback.format_exc())
return
output.clear_output(wait=True)
if not is_sequence(results_raw):
# TODO: Proper way of displaying errors in callbacks
output.append_stderr(
"ValueError: answer_fetcher fn must return a tuple startix, endix; and optionally also a "
f"raw response. Got {results_raw}\n")
if is_sequence(results_raw[0]):
# First result is a (startix, endix) tuple, second result is the raw output
ixstart, ixend = results_raw[0]
rawres = results_raw[1] if len(results_raw) > 1 else None
else:
# Just a tuple (startix, endix)... May be extended with the raw output as third element
ixstart = results_raw[0]
ixend = results_raw[1]
rawres = results_raw[2] if len(results_raw) > 2 else None
if ixstart < 0:
output.append_stderr(
f"Warn: Negative ixstart {ixstart} will be overridden to 0\n")
ixstart = 0
if ixend >= len(context):
output.append_stderr(
f"Warn: ixend {ixend} greater than context length {len(context)} and will be overridden.\n"
)
if rawres is not None:
with output:
display(Code(f"Raw result:\n{rawres}\n", language="text"))
if isinstance(rawres, dict):
confidence = rawres.get("confidence", rawres.get("score"))
else:
confidence = None
else:
confidence = None
prestart = context[:ixstart]
answer = context[ixstart:ixend]
postend = context[ixend:]
paracontent.clear_output(wait=True)
with paracontent:
display(
HTML("".join((
"<p>", prestart,
f'<span style="background: {get_highlight_color(confidence=confidence)};">',
answer, "</span>", postend, "</p>"))))
async def do_magic(
self, code: str, silent: bool, store_history: bool = True, user_expressions=None, allow_stdin: bool = False
):
# Handle some custom line magics.
if code == r"%python":
with open(self.pyfile, "r") as f:
pycode = f.read()
if black:
pycode = black.format_str(pycode, mode=black.FileMode())
code_ = Code(pycode.strip(), language="python")
self.Code(code_)
return self.ok()
elif code == r"%fsharp":
with open(self.fsfile, "r") as f:
fscode = f.read()
code_ = Code(fscode.strip(), language="fsharp")
self.Code(code_)
return self.ok()
# Reset command
elif code.startswith(r"%reset"):
self.restart_kernel()
return await super().do_execute(code, silent, store_history, user_expressions, allow_stdin)
# Send all cell magics straight to the IPythonKernel
elif code.startswith(r"%%"):
# Make sure Python runs in the same context as us
code = code.replace(r"%%python", "")
return await super().do_execute(code, silent, store_history, user_expressions, allow_stdin)
return
def tikz_to_plot(
cls,
code,
x='1em',
y='1em',
scale='1',
svg_scale=2,
raw=False,
**kwargs,
):
code = cls.tikz_to_tex(code, x=x, y=y, scale=scale, raw=raw, **kwargs)
try:
with tempfile.TemporaryDirectory() as tmpdir:
tmpdir = Path(tmpdir)
main_tex = (tmpdir / 'main.tex')
main_tex.write_text(code)
run_process(['pdflatex', 'main.tex'], cwd=tmpdir)
run_process([
'inkscape',
'--without-gui',
'--file=main.pdf',
'--export-plain-svg=main.svg',
],
cwd=tmpdir)
res_svg = Path(tmpdir / 'main.svg').read_text()
return SVG(resize_svg_code(res_svg, factor=svg_scale,
method='bs4'))
except Exception as e:
display(Code(code, language='tex'))
raise
def get_code(reference, hide_doc_string=False):
"""
Return the source code of the given reference path to a function.
Parameters
----------
reference : str
Dot path of desired function.
hide_doc_string : bool
Option to hide the docstring.
Returns
-------
IPython.display.Code
Source code of the given class or function.
"""
obj = inspect.getsource(_get_object_from_reference(reference))
if hide_doc_string:
obj = obj.split('"""')
del obj[1]
obj = ''.join(obj)
if ipy:
return Code(obj, language='python')
else:
simple_warning(
"IPython is not installed. Run `pip install openmdao[notebooks]` or "
"`pip install openmdao[docs]` to upgrade.")
def start(self, methods):
self._methods = methods
draw = self._methods.get("draw", None)
if draw:
self.print_status("Running...")
display(self.stop_button)
display(self.canvas)
self.output_text_code = display(Code(self.output_text), display_id=True)
self.canvas.on_mouse_down(self.on_mouse_down)
self.canvas.on_mouse_up(self.on_mouse_up)
self.canvas.on_mouse_move(self.on_mouse_move)
self.kb_mon.on_dom_event(self.handle_kb_event)
# Initialize text drawing settings for the canvas. ()
self.canvas.font = f"{self.font_settings['size']}px {self.font_settings['font']}"
self.canvas.text_baseline = 'top'
self.canvas.text_align = 'left'
thread = threading.Thread(target=self.loop)
thread.start()
def get_embedding_code(self, widgets):
params = self.get_current_params(widgets)
params['n_iter'] = int(widgets['_iteration'].value)
tsne = TSNE(**params, min_grad_norm=0)
# Since TSNE is a subclass of sklearn's BaseEstimator, repr(tsne)
# provides the code to reproduce the resulting embedding. We remove
# whitespace and linebreaks so we can later break the text as we like.
expression = repr(tsne)
expression = re.sub('\n', '', expression)
expression = re.sub(' +', ' ', expression)
prefix = 'tsne = '
assignment_line = prefix + expression
chars_until_params = len(prefix) + len('TSNE(')
tw = TextWrapper(subsequent_indent=' ' * chars_until_params, width=80)
assignment_line = tw.fill(assignment_line)
code = ('# pip install openTSNE\n'
'from openTSNE import TSNE\n'
f'{assignment_line}\n'
'tsne.fit(X)')
# return as IPython.display.Code
# -> repr will print the code in fixed width font
# -> str will print the actual string containing \n
return Code(code)
def on_button_clicked(b):
with output:
if button.count < len(code_blocks):
display(Code(data=code_blocks[button.count],
language='python'))
button.count += 1
else:
button.disabled = True
def template(self, line, cell=None):
"""create a template from cell content
"""
args = parse_argstring(self.template, line)
filename = args.filename
template = cell.strip()
result = mustache(template, params(), filename)
if args.verbose:
return display(FileLink(filename), Code(result))
else:
return display(FileLink(filename))
def load_nbvars(self, line):
"""Loads envvars into current notebook
"""
args = parse_argstring(self.load_nbvars, line)
namespace = args.namespace or current_namespace()
name = args.configmap or os.environ.get('NB_VARS', 'jupyter-vars')
user_ns = get_ipython().user_ns
display(Markdown(f"Loading notebook variables from configmap: `{namespace}/{name}`"))
try:
load_nbvars(name, namespace, )
except ApiException as e:
display(Code(f"Error reading configmap {namespace}/{name}: {e.status}, {e.reason}"))
return e
def json(self) -> Union[str, Code]:
"""
Outputs the uncompiled procedures to JSON.
Returns:
- JSON of the protocol.
When in Jupyter, this string is wrapped in a `IPython.display.Code` object for nice syntax highlighting.
"""
compiled_json = json.dumps(self.to_list(), sort_keys=True, indent=4)
if get_ipython():
return Code(compiled_json, language="json")
return compiled_json
def format_source(obj):
source = getsource(obj)
if is_jupyter():
from IPython.display import display, Code
return Code(source, language='python')
else:
try:
from pygments import highlight
from pygments.lexers import PythonLexer
from pygments.formatters import Terminal256Formatter
return highlight(source, PythonLexer(), Terminal256Formatter())
except ImportError:
return source
def __init__(self, globals_dict):
self.status_text = display(Code(""), display_id=True)
self._globals_dict = globals_dict
self._methods = {}
self.stop_button = Button(description="Stop")
self.stop_button.on_click(self.on_stop_button_clicked)
self.canvas = Canvas()
self.output_text = ""
self.width, self.height = DEFAULT_CANVAS_SIZE
self.mouse_x = 0
self.mouse_y = 0
self.mouse_is_pressed = False
def show_cells(self, tag):
if isinstance(tag, str):
tag = (tag, )
cells = [
cell for cell in self.cells if all(t in cell['tags'] for t in tag)
]
out = Carousel()
display(out)
for cell in cells:
with out.capture_item(layout=self.cell_code_layout) as o:
# HACK: This is to fix syntax highlighting in Jupyterlab
o.add_class('output_html')
# TODO: fix overflow for code cells to prevent wrapping.
display(Code(cell['source'], language='ipython3'))
def yaml(self) -> Union[str, Code]:
"""
Outputs the uncompiled procedures to YAML.
Internally, this is a conversion of the output of `Protocol.json` for the purpose of enhanced human readability.
Returns:
- YAML of the procedure list.
When in Jupyter, this string is wrapped in an `IPython.display.Code` object for nice syntax highlighting.
"""
compiled_yaml = yaml.safe_dump(self.to_list(),
default_flow_style=False)
if get_ipython():
return Code(compiled_yaml, language="yaml")
return compiled_yaml
def __init__(self, globals_dict):
self.status_text = display(Code(""), display_id=True)
self._globals_dict = globals_dict
self._methods = {}
self.stop_button = Button(description="Stop")
self.stop_button.on_click(self.on_stop_button_clicked)
self._globals_dict["canvas"] = Canvas()
self.kb_mon = Event(source=self.canvas,
watched_events=['keydown', 'keyup'],
wait=1000 // FRAME_RATE,
prevent_default_actions=True)
self.output_text = ""
self.color_strings = {"default": "#888888"}
match_255 = r"(?:(?:2(?:(?:5[0-5])|(?:[0-4][0-9])))|(?:[01]?[0-9]{1,2}))"
match_alpha = r"(?:(?:1(?:\.0*)?)|(?:0(?:\.[0-9]*)?))"
match_360 = r"(?:(?:3[0-5][0-9])|(?:[0-2]?[0-9]{1,2}))"
match_100 = r"(?:100|[0-9]{1,2})"
self.regexes = [
re.compile(r"#[0-9A-Fa-f]{6}"),
re.compile(r"rgb\({},{},{}\)".format(match_255, match_255,
match_255)),
re.compile(r"rgba\({},{},{},{}\)".format(match_255, match_255,
match_255, match_alpha)),
re.compile(r"hsl\({},{}%,{}%\)".format(match_360, match_100,
match_100)),
re.compile(r"hsla\({},{}%,{}%,{}\)".format(match_360, match_100,
match_100, match_alpha))
]
self.width, self.height = DEFAULT_CANVAS_SIZE
self.mouse_x = 0
self.mouse_y = 0
self.mouse_is_pressed = False
self.key = ""
self._keys_held = {}
# Settings for drawing text (https://ipycanvas.readthedocs.io/en/latest/drawing_text.html).
self.font_settings = {
'size': 12.0,
'font': 'sans-serif',
'baseline': 'top',
'align': 'left'
}
def toggle_answer(question):
if bt.description == 'Reveal solution':
# Display solution and change button label
with sol_area:
if not out_format:
print(sol)
else:
for sol_block, fmt in zip(sol, out_format):
if fmt == 'py':
display(Code(data=sol_block, language='py'))
elif fmt == 'md':
display(Markdown(data=sol_block))
else:
print('Format not recognised...')
bt.description = 'Hide solution'
else:
# Hide solution and change button label
sol_area.clear_output()
bt.description = 'Reveal solution'
def show_preview(self, path):
"""Show preview of csv, md or txt in output widget
Args:
path (str): Currently selected path
"""
real_path = re.sub(r"\s\(.*?\)$", "", path)
parts = real_path.split(".")
if len(parts) > 0 and parts[-1].lower() in [
"md",
"html",
"csv",
"txt",
"sh",
"sql",
"py",
"scala",
"json",
"jpg",
"jpeg",
"png",
"gif",
]:
ext = parts[-1].lower()
filename = "/dbfs" + real_path
# text = self.dbutils.fs.head(real_path)
self.preview.clear_output()
with self.preview:
if ext == "html":
display(HTML(filename=filename))
elif ext in ["py", "sh", "sql", "scala"]:
display(Code(filename=filename))
elif ext in ["jpg", "jpeg", "png", "gif"]:
display(Image(filename=filename))
elif ext == "md":
display(Markdown(filename=filename))
elif ext == "csv":
df = pd.read_csv(filename)
display(df)
else:
with open(filename, "r") as fd:
print(fd.read())
def start(self, methods):
self._methods = methods
draw = self._methods.get("draw", None)
if draw:
self.print_status("Running...")
display(self.stop_button)
else:
self.print_status("Done drawing")
display(self.canvas)
self.output_text_code = display(Code(self.output_text), display_id=True)
self.canvas.on_mouse_down(self.on_mouse_down)
self.canvas.on_mouse_up(self.on_mouse_up)
self.canvas.on_mouse_move(self.on_mouse_move)
thread = threading.Thread(target=self.loop)
thread.start()
def _iter_cells(self, cells, show=True, append=False, collapsed=False):
if append and self._run_output:
run_output = self._run_output
else:
run_output = self._run_output = Carousel()
if show:
display(run_output)
for cell in super()._iter_cells(cells):
with run_output.capture_item(layout=self.grid_cell_layout):
cell_output = Accordion(children=())
if '__hide__' not in cell['tags']:
display(cell_output)
i = self.exec_count + 1
if self.display_code:
with cell_output.capture_item(
'In [{}]'.format(i),
layout=self.cell_code_layout) as o:
# HACK: This is to fix syntax highlighting in Jupyterlab
o.add_class('output_html')
display(Code(cell['source'], language='ipython3'))
if self.allow_both_code_and_output_open:
cell_output = Accordion(children=())
if '__hide__' not in cell['tags']:
display(cell_output)
with cell_output.capture_item(
'Out [*]',
selected=not (collapsed
or '__collapsed__' in cell['tags']),
layout=self.cell_output_layout) as o:
try:
yield cell
except GeneratorExit:
pass
cell_output.set_title(
len(cell_output.children) - 1, 'Out [{}]'.format(i))
def display_code(code):
display(Code(code,language='Python'))
def show_function(function):
return Code(getsource(function), language='python')
def render_ipython(node):
"""Convenience method for rendering AST node in IPython environment."""
from IPython.display import display, Code # pylint: disable=import-error
display(Code(render_module(node), language='python'))
def py(filename):
with open(filename) as f:
txt = f.read()
display(Code(txt, language='python'))
exec(txt)
def json_code(j):
return Code(data=json.dumps(j, indent=4), language="json")
def print_status(self, msg):
self.status_text.update(Code(msg))
def print(self, *args, sep=' ', end='\n', flush=True):
global _sparkplug_running
self.output_text += sep.join([str(arg) for arg in args]) + end
if _sparkplug_running and flush:
self.output_text_code.update(Code(self.output_text))
def print(self, msg):
global _sparkplug_running
self.output_text += str(msg) + "\n"
if _sparkplug_running:
self.output_text_code.update(Code(self.output_text))
def display_sourcecode(fun):
display(Code(inspect.getsource(fun), language='python3'))
def Code(self, code: Code):
"""Print HTML formatted code to stdout."""
content = {"data": {"text/html": code._repr_html_(), "text/plain": repr(code)}, "metadata": {}}
self.send_response(self.iopub_socket, "display_data", content)