Deprecate the support of python 3.6

.circleci/test.yml

@@ -146,7 +146,7 @@ workflows:
           name: minimum_version_cpu
           torch: 1.6.0
           torchvision: 0.7.0
-          python: 3.6.9  # The lowest python 3.6.x version available on CircleCI images
+          python: 3.7.4
           requires:
             - lint
       - build_cpu:

.github/workflows/merge_stage_test.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-18.04
     strategy:
       matrix:
-        python-version: [3.6, 3.8, 3.9]
+        python-version: [3.8, 3.9]
         torch: [1.8.1]
         include:
           - torch: 1.8.1

docs/en/get_started.md

@@ -22,7 +22,7 @@
 
 In this section, we demonstrate how to prepare an environment with PyTorch.
 
-MMSelfSup works on Linux (Windows and macOS are not officially supported). It requires Python 3.6+, CUDA 9.2+ and PyTorch 1.6+.
+MMSelfSup works on Linux (Windows and macOS are not officially supported). It requires Python 3.7+, CUDA 9.2+ and PyTorch 1.6+.
 
 ```{note}
 If you are experienced with PyTorch and have already installed it, just skip this part and jump to the next Installation section. Otherwise, you can follow these steps for the preparation.

docs/zh_cn/get_started.md

@@ -22,7 +22,7 @@
 
 在本节中，我们将演示如何使用 PyTorch 准备环境。
 
-MMSelfSup 在 Linux 上运行（Windows 和 macOS 不受官方支持）。 它需要 Python 3.6+、CUDA 9.2+ 和 PyTorch 1.6+。
+MMSelfSup 在 Linux 上运行（Windows 和 macOS 不受官方支持）。 它需要 Python 3.7+、CUDA 9.2+ 和 PyTorch 1.6+。
 
 ```{note}
 如果您有使用 PyTorch 的经验并且已经安装了它，请跳过这一部分并跳到下一个安装环节。否则，您可以按照如下步骤进行准备。

setup.py

@@ -5,6 +5,7 @@
 import shutil
 import sys
 import warnings
+
 from setuptools import find_packages, setup
 
 
@@ -176,8 +177,6 @@ def add_mim_extension():
             'License :: OSI Approved :: Apache Software License',
             'Operating System :: OS Independent',
             'Programming Language :: Python :: 3',
-            'Programming Language :: Python :: 3.5',
-            'Programming Language :: Python :: 3.6',
             'Programming Language :: Python :: 3.7',
             'Programming Language :: Python :: 3.8',
             'Programming Language :: Python :: 3.9',