Apache Airflow 
Version : 1.10.12

Using HiveServer2Hook with default connection ( assuming that auth_mechanism: PLAIN, but also set as extra to double make sure ) 

The password edit test is left empty, but from hook/ connections code and logs it seems that is not:

from airflow.hooks.base_hook import BaseHook
connection = BaseHook.get_connection('hiveserver2_hadoop_one_umlaut_default')
print(connection.password)

[2020-10-05 09:04:35,396] {base_task_runner.py:113} INFO - Job 20527: Subtask UMLAUT_CT_MASTER_TABLE_LOAD [2020-10-05 09:04:35,395] {base_hook.py:89} INFO - Using connection to: id: hiveserver2_hadoop_one_umlaut_default. Host: 146.11.85.131, Port: 10000, Schema: umlaut, Login: hdfs, **Password: XXXXXXXX**, extra: XXXXXXXX

def log_info(self):
        return ("id: {}. Host: {}, Port: {}, Schema: {}, "
                "Login: {}, Password: {}, extra: {}".
                format(self.conn_id,
                       self.host,
                       self.port,
                       self.schema,
                       self.login,
                       "XXXXXXXX" if self.password else None,
                       "XXXXXXXX" if self.extra_dejson else None))

from latest PyHive, looks like password is not None

https://github.com/dropbox/PyHive/blob/master/pyhive/hive.py

![image](https://user-images.githubusercontent.com/10634077/95061218-49a34f80-0736-11eb-9380-98638884ade3.png)

airflow/providers/apache/hive/hooks/hive.py
"""
        Drop partitions from the given table matching the part_vals input
        :param table_name: table name.
        :type table_name: str
        :param part_vals: list of partition specs.
        :type part_vals: list
        :param delete_data: Setting to control if underlying data have to deleted
                            in addition to dropping partitions.
        :type delete_data: bool
        :param db: Name of hive schema (database) @table belongs to
        :type db: str
        >>> hh = HiveMetastoreHook()
        >>> hh.drop_partitions(db='airflow', table_name='static_babynames',
        part_vals="['2020-05-01']")
        True
        """
        if self.table_exists(table_name, db):
            with self.metastore as client:
                self.log.info(
                    "Dropping partition of table %s.%s matching the spec: %s", db, table_name, part_vals
                )
                return client.drop_partition(db, table_name, part_vals, delete_data)
        else:
            self.log.info("Table %s.%s does not exist!", db, table_name)
            return False
class HiveServer2Hook(DbApiHook):