将anaconda与多个conda环境一起使用

Question

I have to create conda env anytime creating a new project. recently i find out anaconda create every single package in its environment even it exist in base anacoda package .so in this situation is it rational using anacoda ?

Answer 1

You are doing great by creating separate environment for each of your projects. The aim of environments is to keep your projects dependencies separate. This means, your project will have only necessary packages.

The problem of using a single environment is that if you update some packages, you are most likely going to destroy something. Example, if you have a project that works only in PACKAGE 1.0, install a package that would update your PACKAGE 1.0 is going to break all your scripts that depends on it. The large the environment, the more likely you would break some dependence. By having separate environments, you are sure that your scripts would always run :)

Another beautiful thing is that of reproducibility. You can save your dependence with there right Python versions.

Update: A simple answer

No, you don't have too create environment for each project. It is a good practice but not a must. If the project uses the same packages, then reusing environments is a smart move. But the moment there exists differences in used packages, then I would recommend separate environments.