linux Aws cliのインストールに失敗しました

最近プロジェクトでaws cliが使用され、ローカル環境でインストール中にエラーが発生しました.pipバージョンpipの検出--versionインストール
pip install awscli --upgrade --user
エラー:

Requirement already up-to-date: awscli in /root/.local/lib/python2.7/site-packages (1.15.36)
Requirement not upgraded as not directly required: botocore==1.10.36 in /root/.local/lib/python2.7/site-packages (from awscli) (1.10.36)
Requirement not upgraded as not directly required: docutils>=0.10 in /root/.local/lib/python2.7/site-packages (from awscli) (0.14)
Requirement not upgraded as not directly required: PyYAML<=3.12,>=3.10 in /root/.local/lib/python2.7/site-packages (from awscli) (3.12)
Requirement not upgraded as not directly required: s3transfer<0.2.0,>=0.1.12 in /root/.local/lib/python2.7/site-packages (from awscli) (0.1.13)
Requirement not upgraded as not directly required: rsa<=3.5.0,>=3.1.2 in /root/.local/lib/python2.7/site-packages (from awscli) (3.4.2)
Requirement not upgraded as not directly required: colorama<=0.3.9,>=0.2.5 in /root/.local/lib/python2.7/site-packages (from awscli) (0.3.9)
Requirement not upgraded as not directly required: jmespath<1.0.0,>=0.7.1 in /root/.local/lib/python2.7/site-packages (from botocore==1.10.36->awscli) (0.9.3)
Requirement not upgraded as not directly required: python-dateutil<3.0.0,>=2.1; python_version >= "2.7" in /usr/lib/python2.7/site-packages (from botocore==1.10.36->awscli) (2.7.3)
Requirement not upgraded as not directly required: futures<4.0.0,>=2.2.0; python_version == "2.6" or python_version == "2.7" in /root/.local/lib/python2.7/site-packages (from s3transfer<0.2.0,>=0.1.12->awscli) (3.2.0)
Requirement not upgraded as not directly required: pyasn1>=0.1.3 in /root/.local/lib/python2.7/site-packages (from rsa<=3.5.0,>=3.1.2->awscli) (0.4.3)
Requirement not upgraded as not directly required: six>=1.5 in /root/.local/lib/python2.7/site-packages (from python-dateutil<3.0.0,>=2.1; python_version >= "2.7"->botocore==1.10.36->awscli) (1.11.0)

ソリューション:
sudo -H pip install awscli --upgrade --ignore-installed six