错误：找不到满足要求副本的版本（来自 -r requirements.txt（第 10 行））答案

【问题标题】：ERROR: Could not find a version that satisfies the requirement copy (from -r requirements.txt (line 10))错误：找不到满足要求副本的版本（来自 -r requirements.txt（第 10 行））
【发布时间】：2021-04-18 15:19:23
【问题描述】：

我的服务器条件：

CUDA：10，cudnn：7.6 GPU：NVIDIA GeForce RTX 2080Ti 系统：Ubuntu18.04

当我尝试重现存储库 A2C 时，我收到错误消息。我尝试了很多方法，但都失败了。我该如何解决这个问题？

输出：

(myconda) root@9eac5f8cc084:~/PyTorch-A2C# python3.6 -m pip install --user -r requirements.txt
Looking in indexes: https://repo.huaweicloud.com/repository/pypi/simple
Requirement already satisfied: numpy in /root/miniconda3/envs/myconda/lib/python3.6/site-packages (from -r requirements.txt (line 1)) (1.16.3)
Requirement already satisfied: torch in /root/miniconda3/envs/myconda/lib/python3.6/site-packages (from -r requirements.txt (line 2)) (1.0.1.post2)
Requirement already satisfied: tqdm in /root/miniconda3/envs/myconda/lib/python3.6/site-packages (from -r requirements.txt (line 3)) (4.25.0)
Requirement already satisfied: matplotlib in /root/miniconda3/envs/myconda/lib/python3.6/site-packages (from -r requirements.txt (line 4)) (2.1.0)
Requirement already satisfied: gym in /root/miniconda3/envs/myconda/lib/python3.6/site-packages (from -r requirements.txt (line 6)) (0.12.1)
ERROR: Could not find a version that satisfies the requirement copy
ERROR: No matching distribution found for copy

【问题讨论】：

标签： python deep-learning pip reinforcement-learning

【解决方案1】：

copy 是标准库的一部分，不需要安装，因为它已经存在。

您可以从 requirements.txt 的第 10 行中删除 copy，然后重试。

【讨论】：

不管怎样，上游项目现在已经移除了这个依赖。您可能想get pull origin master 更新您的副本。