fix(docs): correct minimum supported Python version (#66)

Co-authored-by: Ramiro Morales <cramm0@gmail.com>

Author: ramiro-eb

README.rst

@@ -7,7 +7,7 @@ redshift_connector
 .. |PyPi| image:: https://img.shields.io/pypi/v/redshift_connector.svg?maxAge=432000&style=flat-square
    :target: https://pypi.org/project/redshift_connector/
 
-.. |Python Version| image:: https://img.shields.io/badge/python->=3.5-brightgreen.svg
+.. |Python Version| image:: https://img.shields.io/badge/python->=3.6-brightgreen.svg
    :target: https://pypi.org/project/redshift_connector/
 
 ``redshift_connector`` is the Amazon Redshift connector for

setup.py

@@ -98,7 +98,7 @@ def get_tag(self):
     author_email="redshift-drivers@amazon.com",
     url="https://github.com/aws/amazon-redshift-python-driver",
     license="Apache License 2.0",
-    python_requires=">=3.5",
+    python_requires=">=3.6",
     install_requires=open("requirements.txt").read().strip().split("\n"),
     extras_require=optional_deps,
     classifiers=[
@@ -107,7 +107,6 @@ def get_tag(self):
         "License :: OSI Approved :: BSD License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: Implementation",
         "Programming Language :: Python :: Implementation :: CPython",

test/performance/protocol_performance.py

@@ -11,7 +11,7 @@
 """
 THIS IS A MANUAL TEST REQUIRING LEADER NODE ACCESS ON A REDSHIFT CLUSTER
 1) Execute protocol_perf_test.sql, using a tool like psql, on your Redshift cluster
-2) Install Python>=3.5 on the leader node of your Redshift cluster and install redshift_connector
+2) Install Python>=3.6 on the leader node of your Redshift cluster and install redshift_connector
 3) Hardcode user, password, password arguments for connect(...). Ensure host is set to 'localhost' and SSL is
    disabled.
 4) Execute this script from the leader node, the script will output performance results