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d63c3a886f02c4bd6f4cecb1b05f1deb805d11b0
clickHouseData/clickhouse_chunk_error.log
T
Dipanshu Kumar 51d9926ec6 Contact Conversion Import
2026-05-19 11:55:15 +05:30

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=====================================
TIME : 2026-05-18 13:21:13.727572
TABLE : Employee_Master
ERROR : object of type 'float' has no len()
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Data_migrate_to_clickhouse.py", line 228, in <module>
ch_client.insert(
~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
...<2 lines>...
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 977, in insert
context.data = data
^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\insert.py", line 97, in data
self.block_row_count = self._calc_block_size()
~~~~~~~~~~~~~~~~~~~~~^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\insert.py", line 119, in _calc_block_size
d_size = d_type.data_size(sample)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 108, in data_size
d_size = self._data_size(sample)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 31, in _data_size
total += len(x)
~~~^^^
TypeError: object of type 'float' has no len()
=====================================
=====================================
TIME : 2026-05-18 13:25:28.924657
TABLE : Employee_Master
ERROR : object of type 'float' has no len()
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Data_migrate_to_clickhouse.py", line 240, in <module>
ch_client.insert(
~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
...<2 lines>...
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 977, in insert
context.data = data
^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\insert.py", line 97, in data
self.block_row_count = self._calc_block_size()
~~~~~~~~~~~~~~~~~~~~~^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\insert.py", line 119, in _calc_block_size
d_size = d_type.data_size(sample)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 108, in data_size
d_size = self._data_size(sample)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 31, in _data_size
total += len(x)
~~~^^^
TypeError: object of type 'float' has no len()
=====================================
=====================================
TIME : 2026-05-18 13:28:12.319405
TABLE : Employee_Master
ERROR : object of type 'float' has no len()
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Data_migrate_to_clickhouse.py", line 240, in <module>
ch_client.insert(
~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
...<2 lines>...
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 977, in insert
context.data = data
^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\insert.py", line 97, in data
self.block_row_count = self._calc_block_size()
~~~~~~~~~~~~~~~~~~~~~^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\insert.py", line 119, in _calc_block_size
d_size = d_type.data_size(sample)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 108, in data_size
d_size = self._data_size(sample)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 31, in _data_size
total += len(x)
~~~^^^
TypeError: object of type 'float' has no len()
=====================================
=====================================
TIME : 2026-05-18 13:50:45.035193
TABLE : cpm_city_master
ERROR : invalid literal for int() with base 10: '3240.0'
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Data_migrate_to_clickhouse.py", line 254, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\numeric.py", line 29, in _write_column_binary
column = [int(x) if x else 0 for x in column]
~~~^^^
ValueError: invalid literal for int() with base 10: '3240.0'
=====================================
=====================================
TIME : 2026-05-18 15:13:42.747872
TABLE : cpm_city_master
ERROR : invalid literal for int() with base 10: '3240.0'
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\City_Master_Import.py", line 256, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\numeric.py", line 29, in _write_column_binary
column = [int(x) if x else 0 for x in column]
~~~^^^
ValueError: invalid literal for int() with base 10: '3240.0'
=====================================
================================
TIME : 2026-05-19 10:41:09.130670
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:13.117649
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:16.409179
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:19.438049
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:22.372659
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:25.653488
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:28.569207
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:31.341427
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:34.485004
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:37.334645
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:40.191742
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
================================
TIME : 2026-05-19 10:41:47.082893
TABLE : Attendance
ERROR : Invalid None value in non-Nullable column, column name: `update_by`
TRACEBACK :
Traceback (most recent call last):
File "d:\Python Code\Attendance_Import.py", line 327, in <module>
ch_client.insert_df(
~~~~~~~~~~~~~~~~~~~^
table=TABLE_NAME,
^^^^^^^^^^^^^^^^^
df=chunk,
^^^^^^^^^
database=CH_CONFIG['database']
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 1013, in insert_df
return self.insert(table,
~~~~~~~~~~~^^^^^^^
df,
^^^
...<5 lines>...
transport_settings=transport_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
context=context)
^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\client.py", line 978, in insert
return self.data_insert(context)
~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 347, in data_insert
response = self._raw_request(block_gen, params, headers, error_handler=error_handler, server_wait=False)
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 569, in _raw_request
error_handler(response)
~~~~~~~~~~~~~^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\httpclient.py", line 331, in error_handler
raise ex
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\transform.py", line 114, in chunk_gen
col_type.write_column(data, output, context)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 216, in write_column
self.write_column_data(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\base.py", line 231, in write_column_data
self._write_column_binary(column, dest, ctx)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\datatypes\string.py", line 51, in _write_column_binary
handle_error(data_conv.write_str_col(column, self.nullable, encoding, dest), ctx)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\dipanshuk\AppData\Local\Python\pythoncore-3.14-64\Lib\site-packages\clickhouse_connect\driver\errors.py", line 17, in handle_error
raise DataError(msg)
clickhouse_connect.driver.exceptions.DataError: Invalid None value in non-Nullable column, column name: `update_by`
================================
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