ENH: Convert calls to BigQuery API to use google-cloud-python (#25)

* Moved read_query to GbqConnector, update credentials and client generation to GbqConnector, and remove wait_for_job

* Move sizeof_fmt back into GbqConnector

* Convert rest of methods to use google-cloud-bigquery

- Removes references to google-api-client-library and httplib2.
- Updates PR to not make any surface-level changes to the API, only
  swaps out the dependencies.
- Updates PR to use latest version of google-cloud-bigquery.

* Ignore mode property when comparing schemas.

* Document new dependency on google-cloud-bigquery.

* Document dependencies for previous verions.

Also says which libraries are no longer required, for easier upgrades.

* Add deps and StreamingInsertError to changelog.

Author: jasonqng

ci/requirements-2.7-0.19.2.pip

@@ -1,7 +1,5 @@
-google-api-python-client
 google-auth
-google-auth-httplib2
 google-auth-oauthlib
 PyCrypto
-python-gflags
 mock
+google-cloud-bigquery

ci/requirements-3.5-0.18.1.pip

@@ -1,5 +1,4 @@
-google-api-python-client==1.6.0
 google-auth==1.0.0
-google-auth-httplib2==0.0.1
 google-auth-oauthlib==0.0.1
 mock
+google-cloud-bigquery==0.28.0

ci/requirements-3.6-0.20.1.conda

@@ -1,5 +1,4 @@
-google-api-python-client
 google-auth
-google-auth-httplib2
 google-auth-oauthlib
 mock
+google-cloud-bigquery

ci/requirements-3.6-MASTER.pip

@@ -1,5 +1,4 @@
-google-api-python-client
 google-auth
-google-auth-httplib2
 google-auth-oauthlib
 mock
+google-cloud-bigquery

docs/source/changelog.rst

@@ -1,6 +1,13 @@
 Changelog
 =========
 
+0.3.0 / 2017-??-??
+------------------
+
+- Use the `google-cloud-bigquery <https://googlecloudplatform.github.io/google-cloud-python/latest/bigquery/usage.html>`__ library for API calls. The ``google-cloud-bigquery`` package is a new dependency, and dependencies on ``google-api-python-client`` and ``httplib2`` are removed. See the `installation guide <https://pandas-gbq.readthedocs.io/en/latest/install.html#dependencies>`__ for more details.  (:issue:`93`)
+- :func:`to_gbq` now uses a load job instead of the streaming API. (:issue:`75`)
+- Remove ``StreamingInsertError`` class, as it is no longer used by :func:`to_gbq`. (:issue:`75`)
+
 0.2.1 / 2017-11-27
 ------------------
 

docs/source/install.rst

@@ -37,8 +37,17 @@ Dependencies
 
 This module requires following additional dependencies:
 
-- `httplib2 <https://github.com/httplib2/httplib2>`__: HTTP client
-- `google-api-python-client <http://github.com/google/google-api-python-client>`__: Google's API client
 - `google-auth <https://github.com/GoogleCloudPlatform/google-auth-library-python>`__: authentication and authorization for Google's API
 - `google-auth-oauthlib <https://github.com/GoogleCloudPlatform/google-auth-library-python-oauthlib>`__: integration with `oauthlib <https://github.com/idan/oauthlib>`__ for end-user authentication
-- `google-auth-httplib2 <https://github.com/GoogleCloudPlatform/google-auth-library-python-httplib2>`__: adapter to use ``httplib2`` HTTP client with ``google-auth``
+- `google-cloud-bigquery <http://github.com/GoogleCloudPlatform/google-cloud-python>`__: Google Cloud client library for BigQuery
+
+.. note::
+
+   The dependency on `google-cloud-bigquery <http://github.com/GoogleCloudPlatform/google-cloud-python>`__ is new in version 0.3.0 of ``pandas-gbq``.
+   Versions less than 0.3.0 required the following dependencies:
+
+   - `httplib2 <https://github.com/httplib2/httplib2>`__: HTTP client (no longer required)
+   - `google-api-python-client <http://github.com/google/google-api-python-client>`__: Google's API client (no longer required, replaced by `google-cloud-bigquery <http://github.com/GoogleCloudPlatform/google-cloud-python>`__:)
+   - `google-auth <https://github.com/GoogleCloudPlatform/google-auth-library-python>`__: authentication and authorization for Google's API
+   - `google-auth-oauthlib <https://github.com/GoogleCloudPlatform/google-auth-library-python-oauthlib>`__: integration with `oauthlib <https://github.com/idan/oauthlib>`__ for end-user authentication
+   - `google-auth-httplib2 <https://github.com/GoogleCloudPlatform/google-auth-library-python-httplib2>`__: adapter to use ``httplib2`` HTTP client with ``google-auth`` (no longer required)