def log_progress(sequence, every=None, size=None, name='Items'):
from ipywidgets import IntProgress, HTML, VBox
from IPython.display import display
is_iterator = False
if size is None:
try:
size = len(sequence)
except TypeError:
is_iterator = True
if size is not None:
if every is None:
if size <= 200:
every = 1
else:
every = int(size / 200) # every 0.5%
else:
assert every is not None, 'sequence is iterator, set every'
if is_iterator:
progress = IntProgress(min=0, max=1, value=1)
progress.bar_style = 'info'
else:
progress = IntProgress(min=0, max=size, value=0)
label = HTML()
box = VBox(children=[label, progress])
display(box)
index = 0
try:
for index, record in enumerate(sequence, 1):
if index == 1 or index % every == 0:
if is_iterator:
label.value = '{name}: {index} / ?'.format(name=name,
index=index)
else:
progress.value = index
label.value = u'{name}: {index} / {size}'.format(
name=name, index=index, size=size)
yield record
except:
progress.bar_style = 'danger'
raise
else:
progress.bar_style = 'success'
progress.value = index
label.value = "{name}: {index}".format(name=name,
index=str(index or '?'))
def create(self):
"""
Create the log viewer.
"""
from ipywidgets import HTML, HBox, VBox
html = HTML()
html.value = """<div style="max-height: 400px; overflow-y: auto; width: 100%";>"""
buttons = []
for type in self.log_levels:
buttons.append(
HTML(
self.toggle_button_line.format(type_lower=type.lower(),
type_upper=type.upper())))
buttons_view = HBox(buttons)
buttons_view.margin = "10px 0px"
html.value += """<table style="word-break: break-all; margin: 10px;">"""
for line in self.log_content.split("\n"):
found = False
for type in self.log_levels:
type_upper = type.upper()
type_lower = type.lower()
color = self.log_color_codes[type_upper]
if line.startswith(
"[{type_upper}]".format(type_upper=type_upper)):
html.value += self.log_line.format(content=line,
type_lower=type_lower,
color=color)
found = True
break
if not found:
html.value += self.log_line.format(
content=line,
type_lower="default",
color=self.log_color_codes["DEFAULT"])
html.value += "</table></div>"
html.width = "100%"
html.margin = "5px"
result_vbox = VBox((buttons_view, html))
return result_vbox
