Remove py2 support (pynamodb#786)

.travis.yml

@@ -1,21 +1,9 @@
 language: python
 
 python:
+  - "3.7"
   - "3.6"
-  - "3.5"
-  - "2.7"
-  - "pypy"
-
-
-# See https://github.com/travis-ci/travis-ci/issues/9815
-matrix:
-  include:
-    - python: "3.7"
-      dist: xenial
-      sudo: true
-
-env:
-  - AWS_SECRET_ACCESS_KEY=fake_key AWS_ACCESS_KEY_ID=fake_id
+  - "pypy3"
 
 install:
   - pip install -e .[signals] -r requirements-dev.txt

README.rst

@@ -34,7 +34,7 @@ From GitHub::
     $ pip install git+https://github.com/pynamodb/PynamoDB#egg=pynamodb
 
 From conda-forge::
-    
+
     $ conda install -c conda-forge pynamodb
 
 Upgrading
@@ -228,7 +228,7 @@ Want to backup and restore a table? No problem.
 Features
 ========
 
-* Python >= 3.3, and 2.7 support
+* Python >= 3.5 support
 * An ORM-like interface with query and scan filters
 * Compatible with DynamoDB Local
 * Supports the entire DynamoDB API
@@ -240,4 +240,3 @@ Features
 * Complex queries
 * Batch operations with automatic pagination
 * Iterators for working with Query and Scan operations
-

docs/logging.rst

@@ -8,7 +8,6 @@ Here is an example showing how to enable logging for PynamoDB:
 
 .. code-block:: python
 
-    from __future__ import print_function
     import logging
     from pynamodb.models import Model
     from pynamodb.attributes import (

examples/attributes.py

@@ -1,7 +1,6 @@
 """
 A PynamoDB example using a custom attribute
 """
-from __future__ import print_function
 import pickle
 from pynamodb.attributes import BinaryAttribute, UnicodeAttribute
 from pynamodb.models import Model

examples/connection.py

@@ -1,7 +1,6 @@
 """
 Examples using a connection
 """
-from __future__ import print_function
 from pynamodb.connection import Connection
 
 # Get a connection

examples/model.py

@@ -3,7 +3,6 @@
 
 http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/SampleTablesAndData.html
 """
-from __future__ import print_function
 import logging
 from pynamodb.models import Model
 from pynamodb.attributes import (

examples/url_shortener/shortener.py

@@ -1,7 +1,6 @@
 """
 A fully working url shortener example
 """
-from __future__ import print_function
 import flask
 from hashlib import md5
 from base64 import b64encode

pynamodb/__init__.py

@@ -7,4 +7,4 @@
 """
 __author__ = 'Jharrod LaFon'
 __license__ = 'MIT'
-__version__ = '4.3.3'
+__version__ = '5.0.0b1'

pynamodb/_compat.py

@@ -1,33 +1,6 @@
-import six
-import sys
+from typing import Generic, TYPE_CHECKING
 
-if six.PY2:
-    from inspect import getargspec as getfullargspec
+if TYPE_CHECKING:
+    GenericMeta = type  # to avoid dynamic base class
 else:
-    from inspect import getfullargspec
-
-
-class FakeGenericMeta(type):
-    """Poor man's Generic[T] that doesn't depend on typing. The real generics are in the type stubs."""
-    def __getitem__(self, item):
-        return self
-
-
-def load_module(name, path):
-    """Load module using the Python version compatible function."""
-    if sys.version_info >= (3, 3):
-        from importlib.machinery import SourceFileLoader
-
-        # Typeshed is incorrect in requiring a string arg to `load_module`,
-        # as this works with no args or a None arg.
-        # Even `load_module` is now deprecated, so we should update to just
-        # using the following approach in >= python 3.5:
-        # https://docs.python.org/3/library/importlib.html#importing-a-source-file-directly
-        loader = SourceFileLoader(name, path)
-        return loader.load_module()  # type: ignore
-    else:
-        from imp import load_source
-        return load_source(name, path)
-
-
-__all__ = ('getfullargspec', 'FakeGenericMeta', 'load_module')
+    GenericMeta = type(Generic)