fix!: drop support for Python 2.7 / 3.5 (#212)

Drop 'six' module

Drop 'u"' prefixes for text

Remove other Python 2.7 workarounds

Drop use of 'pytz'

Dxpand range to allow 'google-auth' 2.x versions

Remove 'general_helpers.wraps': except for a backward-compatibility
import, 'functools.wraps' does everything wee need on Python >= 3.6.

Remove 'packaging' dependency

Release-As: 2.0.0b1

Closes #74.

Closes #215.

1 files changed, 2 insertions, 19 deletions

diff --git a/google/api_core/general_helpers.py b/google/api_core/general_helpers.py
index d2d0c44..fba7802 100644
--- a/google/api_core/general_helpers.py
+++ b/google/api_core/general_helpers.py
@@ -12,22 +12,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""Helpers for general Python functionality."""
-
-import functools
-
-import six
-
-
-# functools.partial objects lack several attributes present on real function
-# objects. In Python 2 wraps fails on this so use a restricted set instead.
-_PARTIAL_VALID_ASSIGNMENTS = ("__doc__",)
-
-
-def wraps(wrapped):
-    """A functools.wraps helper that handles partial objects on Python 2."""
-    # https://github.com/google/pytype/issues/322
-    if isinstance(wrapped, functools.partial):  # pytype: disable=wrong-arg-types
-        return six.wraps(wrapped, assigned=_PARTIAL_VALID_ASSIGNMENTS)
-    else:
-        return six.wraps(wrapped)
+# This import for backward compatibiltiy only.
+from functools import wraps  # noqa: F401 pragma: NO COVER