如何结合"conda create"?参数"--file"，“-prefix"和"--copy"? [英] How to combine the "conda create" parameters "--file", "--prefix" and "--copy"?

问题描述

我想基于某个路径下的环境文件创建一个conda环境，不使用符号链接.因此，我想运行以下conda命令:

I would like to create a conda environment based on an environment file in a certain path, using no symlinks. Therefore, I would like to run the following conda command:

conda create --file environment.yml --prefix ./python --copy

文件 environment.yml 看起来像这样(我将其缩短了):

the file environment.yml looks like this (I shortened it):

name: null
channels:
- defaults
dependencies:
- python==3.7.0

但是，出现以下错误:

CondaValueError: could not parse 'name: null' in: environment.yml

以下命令有效:

conda env create --file environment.yml --prefix ./python

但是，我不能使用-copy 参数:

However, then I cannot use the --copy parameter:

error: unrecognized arguments: --copy

推荐答案

虽然我同意确实应该为此提供一个选项，但是您可以在运行时将 copy_always 配置选项临时设置为true该命令，并且应该可以解决问题:

While I agree that there really should be an option for this, you can temporarily set the copy_always configuration option to true while you run the command and that should do the trick:

CONDA_COPY_ALWAYS=1 conda env create --file environment.yml --prefix ./python

为进行验证，我创建了带有和不带有 CONDA_COPY_ALWAYS = 1 的同一环境的两个版本.它们都单独在 du 中以969 MB的大小出现，但是当在 du 中包含 miniconda3/pkgs 时，只有那些没有 CONDA_COPY_ALWAYS = 1 的文件会减少. du .

To verify, I created two versions of the same env with and without CONDA_COPY_ALWAYS=1. They both come out as 969 MB in du alone, but only the one without the CONDA_COPY_ALWAYS=1 gets reduced when including miniconda3/pkgs in the du.

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