support python 3.6

.github/workflows/test.yml

@@ -22,10 +22,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
-    - name: Set up Python 3.7
+    - name: Set up Python 3.6
       uses: actions/setup-python@v1
       with:
-        python-version: 3.7
+        python-version: 3.6
     - name: Install
       run: |
         pip install --upgrade pip

README.md

@@ -18,7 +18,7 @@
     <a href="https://pypi.org/project/alembic_utils/"><img src="https://img.shields.io/pypi/dm/alembic_utils.svg" alt="Download count" height="18"></a>
 </p>
 <p>
-    <a href="https://www.python.org/downloads/"><img src="https://img.shields.io/badge/python-3.7+-blue.svg" alt="Python version" height="18"></a>
+    <a href="https://www.python.org/downloads/"><img src="https://img.shields.io/badge/python-3.6+-blue.svg" alt="Python version" height="18"></a>
     <a href=""><img src="https://img.shields.io/badge/postgresql-11+-blue.svg" alt="PostgreSQL version" height="18"></a>
 </p>
 

docs/index.md

@@ -18,7 +18,7 @@
     <a href="https://pypi.org/project/alembic_utils/"><img src="https://img.shields.io/pypi/dm/alembic_utils.svg" alt="Download count" height="18"></a>
 </p>
 <p>
-    <a href="https://www.python.org/downloads/"><img src="https://img.shields.io/badge/python-3.7+-blue.svg" alt="Python version" height="18"></a>
+    <a href="https://www.python.org/downloads/"><img src="https://img.shields.io/badge/python-3.6+-blue.svg" alt="Python version" height="18"></a>
     <a href=""><img src="https://img.shields.io/badge/postgresql-11+-blue.svg" alt="PostgreSQL version" height="18"></a>
 </p>
 

docs/quickstart.md

@@ -1,7 +1,7 @@
 ## Quickstart
 
 ### Installation
-*Requirements* Python 3.7+
+*Requirements* Python 3.6+
 
 First, install alembic_utils
 ```shell

setup.py

@@ -30,7 +30,7 @@ def get_version(package):
     author_email="oliver@oliverrice.com",
     license="MIT",
     description="A sqlalchemy/alembic extension for migrating procedures and views ",
-    python_requires=">=3.7",
+    python_requires=">=3.6",
     packages=find_packages("src"),
     package_dir={"": "src"},
     install_requires=["alembic", "psycopg2-binary", "flupy", "sqlalchemy", "parse"],

src/alembic_utils/__init__.py

@@ -1 +1 @@
-__version__ = "0.2.8"
+__version__ = "0.2.9"

src/alembic_utils/pg_function.py

@@ -1,6 +1,4 @@
 # pylint: disable=unused-argument,invalid-name,line-too-long
-from __future__ import annotations
-
 from typing import List
 
 from parse import parse
@@ -22,7 +20,7 @@ class PGFunction(ReplaceableEntity):
     """
 
     @classmethod
-    def from_sql(cls, sql: str) -> PGFunction:
+    def from_sql(cls, sql: str) -> "PGFunction":
         """Create an instance instance from a SQL string"""
         template = "create{}function{:s}{schema}.{signature}{:s}returns{:s}{definition}"
         result = parse(template, sql.strip(), case_sensitive=False)
@@ -85,7 +83,7 @@ def to_sql_statement_create_or_replace(self) -> str:
         )
 
     @classmethod
-    def from_database(cls, connection, schema) -> List[PGFunction]:
+    def from_database(cls, connection, schema) -> List["PGFunction"]:
         """Get a list of all functions defined in the db"""
         sql = sql_text(
             f"""

src/alembic_utils/pg_materialized_view.py

@@ -1,5 +1,4 @@
 # pylint: disable=unused-argument,invalid-name,line-too-long
-from __future__ import annotations
 
 from typing import List
 
@@ -26,7 +25,7 @@ def __init__(self, schema: str, signature: str, definition: str, with_data: bool
         self.with_data = with_data
 
     @classmethod
-    def from_sql(cls, sql: str) -> PGMaterializedView:
+    def from_sql(cls, sql: str) -> "PGMaterializedView":
         """Create an instance from a SQL string"""
 
         # Strip optional semicolon and all whitespace from end of definition
@@ -89,7 +88,7 @@ def to_sql_statement_create_or_replace(self) -> str:
         )
 
     @classmethod
-    def from_database(cls, connection, schema) -> List[PGMaterializedView]:
+    def from_database(cls, connection, schema) -> List["PGMaterializedView"]:
         """Get a list of all functions defined in the db"""
         sql = sql_text(
             f"""

src/alembic_utils/pg_view.py

@@ -1,5 +1,4 @@
 # pylint: disable=unused-argument,invalid-name,line-too-long
-from __future__ import annotations
 
 from typing import List
 
@@ -21,7 +20,7 @@ class PGView(ReplaceableEntity):
     """
 
     @classmethod
-    def from_sql(cls, sql: str) -> PGView:
+    def from_sql(cls, sql: str) -> "PGView":
         """Create an instance from a SQL string"""
         template = "create{}view{:s}{schema}.{signature}{:s}as{:s}{definition}"
         result = parse(template, sql, case_sensitive=False)
@@ -54,7 +53,7 @@ def to_sql_statement_create_or_replace(self) -> str:
         )
 
     @classmethod
-    def from_database(cls, connection, schema) -> List[PGView]:
+    def from_database(cls, connection, schema) -> List["PGView"]:
         """Get a list of all functions defined in the db"""
         sql = sql_text(
             f"""

src/alembic_utils/replaceable_entity.py

@@ -1,5 +1,4 @@
 # pylint: disable=unused-argument,invalid-name,line-too-long
-from __future__ import annotations
 
 import logging
 from contextlib import contextmanager