import datashader as ds, bokeh, holoviews as hv  # noqa
from distutils.version import LooseVersion

min_versions = dict(ds='0.13.0', bokeh='2.4.2', hv='1.14.8')

for lib, ver in min_versions.items():
    v = globals()[lib].__version__
    if LooseVersion(v) < LooseVersion(ver):
        print("Error: expected {}={}, got {}".format(lib,ver,v))

hv.extension('bokeh', 'matplotlib')

import pathlib
from pyct import cmd

if not pathlib.Path('../data/earthquakes-projected.parq').is_file():
    cmd.fetch_data(name='holoviz', path='..') # Alternative way to fetch the data

try:
    import pandas as pd
    columns = ['depth', 'id', 'latitude', 'longitude', 'mag', 'place', 'time', 'type']
    path = pathlib.Path('../data/earthquakes-projected.parq')
    data = pd.read_parquet(path, columns=columns, engine='fastparquet')
    data.head()
except RuntimeError as e:
    print('The data cannot be read: %s' % e)