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from clickhouse_connect.driver.exceptions import NotSupportedError
pd_time_test = None
pd_extended_dtypes = False
try:
import numpy as np
except ImportError:
np = None
try:
import pandas as pd
pd_extended_dtypes = not pd.__version__.startswith('0')
try:
from pandas.core.dtypes.common import is_datetime64_dtype
from pandas.core.dtypes.common import is_timedelta64_dtype
def combined_test(arr_or_dtype):
return is_datetime64_dtype(arr_or_dtype) or is_timedelta64_dtype(arr_or_dtype)
pd_time_test = combined_test
except ImportError:
try:
from pandas.core.dtypes.common import is_datetime_or_timedelta_dtype
pd_time_test = is_datetime_or_timedelta_dtype
except ImportError as ex:
raise NotSupportedError('pandas version does not contain expected test for temporal types') from ex
except ImportError:
pd = None
try:
import pyarrow as arrow
except ImportError:
arrow = None
def check_numpy():
if np:
return np
raise NotSupportedError('Numpy package is not installed')
def check_pandas():
if pd:
return pd
raise NotSupportedError('Pandas package is not installed')
def check_arrow():
if arrow:
return arrow
raise NotSupportedError('PyArrow package is not installed')
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