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from __future__ import annotations
from numbers import Number
import bokeh
from bokeh.core.properties import without_property_validation
from bokeh.io import curdoc
from packaging.version import Version
from tlz.curried import first
try:
import numpy as np
except ImportError:
np = None # type: ignore
BOKEH_VERSION = Version(bokeh.__version__)
PROFILING = False
if BOKEH_VERSION.major < 3:
_DATATABLE_STYLESHEETS_KWARGS = {}
else:
_DATATABLE_STYLESHEETS_KWARGS = {
"stylesheets": [
"""
.bk-data-table {
z-index: 0;
}
"""
]
}
def transpose(lod):
return {k: [d[k] for d in lod] for k in lod[0]}
@without_property_validation
def update(source, data):
"""Update source with data
This checks a few things first
1. If the data is the same, then don't update
2. If numpy is available and the data is numeric, then convert to numpy
arrays
3. If profiling then perform the update in another callback
"""
if not np or not any(isinstance(v, np.ndarray) for v in source.data.values()):
if source.data == data:
return
if np and len(data[first(data)]) > 10:
d = {}
for k, v in data.items():
if type(v) is not np.ndarray and isinstance(v[0], Number):
d[k] = np.array(v)
else:
d[k] = v
else:
d = data
if PROFILING:
curdoc().add_next_tick_callback(lambda: source.data.update(d))
else:
source.data.update(d)
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