can not install in python 2.7.5

pip install aws-shell
Collecting aws-shell
Downloading https://mirrors.tencent.com/pypi/packages/7b/a9/bc5ce706e632833932969c65d66bccb5ecbb3791d5f911c74d3e205c5d53/aws_shell-0.2.1-py2.py3-none-any.whl (50kB)
100% |████████████████████████████████| 51kB 1.5MB/s
Collecting awscli<2.0.0,>=1.16.10 (from aws-shell)
Downloading https://mirrors.tencent.com/pypi/packages/6d/d5/e68a9c6fd1608f50d210b7e0c14dbb080bbbb95d6ae2d18eb0e8f2d91001/awscli-1.18.135-py2.py3-none-any.whl (3.3MB)
100% |████████████████████████████████| 3.3MB 503kB/s
Collecting configobj<6.0.0,>=5.0.6 (from aws-shell)
Using cached https://mirrors.tencent.com/pypi/packages/64/61/079eb60459c44929e684fa7d9e2fdca403f67d64dd9dbac27296be2e0fab/configobj-5.0.6.tar.gz
Collecting Pygments<3.0.0,>=2.1.3 (from aws-shell)
Using cached https://mirrors.tencent.com/pypi/packages/6e/4d/4d2fe93a35dfba417311a4ff627489a947b01dc0cc377a3673c00cf7e4b2/Pygments-2.6.1.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-build-xz9o5v/Pygments/setup.py", line 38, in
packages = find_packages(include=['pygments', 'pygments.*']),
TypeError: find_packages() got an unexpected keyword argument 'include'

----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-xz9o5v/Pygments/
You are using pip version 8.1.2, however version 20.2.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

Reproduce the reported `pip install aws-shell` failure with Python 2.7.5 and the dependency versions shown, especially Pygments 2.6.1. Inspect the aws-shell package metadata and dependency resolution to identify a compatible installation path, then verify that installation completes successfully on the reported environment.

Written by the indexing model from the issue text.