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直接pip install federatedml是无法找得到这个库的。
这个的原因是环境变量的事情，因为在部署文档中，本身提示我们要更新一些环境变量，如果不export那些变量，下面的fate_test其实也是无法测试成功的。
打开bin/init_env.sh，其内容如下
#!/bin/bash#
# Copyright 2019 The FATE Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#fate_project_base=$(cd `dirname "$(realpath "${BASH_SOURCE[0]:-${(%):-%x}}")"`; cd ../;pwd)
export FATE_PROJECT_BASE=$fate_project_base
export FATE_DEPLOY_BASE=$fate_project_base
export EGGROLL_HOME=
export PYTHONPATH=/root/Downloads/standalone_fate_install_1.10.0_release/fate/python:/root/Downloads/standalone_fate_install_1.10.0_release/fateflow/pythonexport FATE_LOG_LEVEL=DEBUG
export FATE_PROFILE_LOG_ENABLED=0
export EGGROLL_LOG_LEVEL=INFOvenv=/root/Downloads/standalone_fate_install_1.10.0_release/env/python/venv
export JAVA_HOME=/root/Downloads/standalone_fate_install_1.10.0_release/env/jdk/jdk-8u345
export PATH=$PATH:$JAVA_HOME/bin
source ${venv}/bin/activate
可以看到这个库本身在下载的FATE包里
那接下来其实可以给conda的python解释器添加环境变量，如何做？
先查看下当前的python解释器的路径echo $PATH，echo $PYTHONPATH$，由于我使用的是conda虚拟环境，我就使用conda自带的虚拟环境的环境变量工具添加上init_env那两个路径就行了
init_env文件想export PYTHONPATH
export PYTHONPATH=/root/Downloads/standalone_fate_install_1.10.0_release/fate/python:/root/Downloads/standalone_fate_install_1.10.0_release/fateflow/python
那用conda的话就直接
conda-env config vars set PYTHONPATH=/root/Downloads/standalone_fate_install_1.10.0_release/fate/python:/root/Downloads/standalone_fate_install_1.10.0_release/fateflow/python
输入后，提示To make your changes take effect please reactivate your environment
这样就可以了。
如果你不用conda，你也可以直接跟文件里的那样直接输入 export PYTHONPATH=/root/Downloads/standalone_fate_install_1.10.0_release/fate/python:/root/Downloads/standalone_fate_install_1.10.0_release/fateflow/python，应该也行，但是你的代码编辑器大概率还会报错，但是运行是可以运行的。
如果还想代码编辑器不报错，你可以找找你代码编辑器的关于编辑器环境变量的设置。