Package V2 client + prepare v2.0.0b release

Tweak client packaging for Python V2 client, bump up version t0 v2.0.0b. Go through QA SOP to prepare for release.

Author: Niall Egan <niall.egan@databricks.com>

Author: Niall Egan

cmdexec/clients/python/.gitignore

@@ -0,0 +1,3 @@
+databricks_sql_connector.egg-info/
+dist/
+build/

cmdexec/clients/python/README.md

@@ -0,0 +1,44 @@
+# Databricks SQL Connector for Python
+
+**Status: Private preview**
+
+Documentation can be found here: [Databricks SQL Connector for Python](https://docs.databricks.com/dev-tools/python-sql-connector.html).
+
+## About
+
+The Databricks SQL Connector is a Python library that allows you to use Python code to run
+SQL commands on Databricks clusters and Databricks SQL endpoints.
+This library follows [PEP 249 -- Python Database API Specification v2.0](https://www.python.org/dev/peps/pep-0249/).
+
+## Quickstart
+
+Install the library with `pip install databricks-sql-connector`
+
+Example usage:
+
+```
+from databricks import sql
+
+connection = sql.connect(
+  server_hostname='<server-hostname>',
+  http_path='<http-path>',
+  access_token='<personal-access-token>')
+
+cursor = connection.cursor()
+
+cursor.execute('SELECT * FROM RANGE(10)')
+result = cursor.fetchall()
+for row in result:
+  print(row)
+
+cursor.close()
+connection.close()
+```
+
+Where:
+- `<server-hostname>` is the Databricks instance host name.
+- `<http-path>` is the HTTP Path either to a Databricks SQL endpoint (e.g. /sql/1.0/endpoints/1234567890abcdef),
+   or to a Databricks Runtime interactive cluster (e.g. /sql/protocolv1/o/1234567890123456/1234-123456-slid123)
+- `<personal-access-token>` is a HTTP Bearer access token, e.g. a Databricks Personal Access Token.
+
+For more information, see [Databricks documentation](https://docs.databricks.com/dev-tools/python-sql-connector.html).

cmdexec/clients/python/pyproject.toml

@@ -1,6 +1,6 @@
 [build-system]
 requires = [
-    "setuptools>=42",
+    "setuptools>=58",
     "wheel",
 ]
 

cmdexec/clients/python/setup.cfg

@@ -0,0 +1,31 @@
+[metadata]
+name = databricks-sql-connector
+version = attr: databricks.sql.__version__
+description = "Databricks SQL Connector for Python"
+long_description = file: README.md
+long_description_content_type = text/markdown
+url = "https://databricks.com"
+author = "Databricks"
+author_email = "feedback@databricks.com"
+license = "http://www.apache.org/licenses/LICENSE-2.0"
+classifiers =
+    "Intended Audience :: Developers"
+    "License :: OSI Approved :: Apache Software License"
+    "Operating System :: OS Independent"
+    "Topic :: Database :: Front-Ends"
+install_requires =
+    thrift >= 0.13.0
+    pyarrow >= 5.0.0
+    pandas >= 1.0.0
+
+[options]
+package_dir=
+    =src
+packages = find:
+python_requires = >=3.7
+
+[options.packages.find]
+where = src
+
+[options.package_data]
+* = HISTORY

cmdexec/clients/python/setup.py

@@ -0,0 +1,28 @@
+v2.0.0b - February 8, 2022
+- Initial beta release of V2. V2 is an internal re-write of large parts of the connector to use Databricks edge features. All public APIs from V1 remain.
+- Added Unity Catalog support (pass catalog and / or  schema key word args to the .connect method to select initial schema and catalog)
+
+v1.0.0 - January 20, 2022
+- Add operations for retrieving metadata
+- Add the ability to access columns by name on result rows
+- Add the ability to provide configuration settings on connect
+
+v0.9.4 - January 10, 2022
+- Improved logging and error messages.
+
+v0.9.3 - December 8, 2021
+- Add retries for 429 and 503 HTTP responses.
+
+v0.9.2 - December 2, 2021
+- (Bug fix) Increased Thrift requirement from 0.10.0 to 0.13.0 as 0.10.0 was in fact incompatible
+- (Bug fix) Fixed error message after query execution failed - SQLSTATE and Error message were misplaced
+
+v0.9.1 - Sept 1, 2021
+- Public Preview release, Experimental tag removed
+- minor updates in internal build/packaging
+- no functional changes
+
+v0.9.0 - Aug 4, 2021
+- initial (Experimental) release of pyhive-forked connector
+- Python DBAPI 2.0 (PEP-0249), thrift based
+- see docs for more info: https://docs.databricks.com/dev-tools/python-sql-connector.html

cmdexec/clients/python/src/databricks/sql/HISTORY

@@ -27,7 +27,7 @@ def __repr__(self):
 DATE = DBAPITypeObject('date')
 ROWID = DBAPITypeObject()
 
-__version__ = "2.0.0rc2"
+__version__ = "2.0.0b0"
 USER_AGENT_NAME = "PyDatabricksSqlConnector"
 
 # These two functions are pyhive legacy