# What does `from sage.all import *` do?

This question is relatd with another one: What packages in sage can I use in python?

How do I import Sage into a Python script told me that to use from `sage.all import *`

to import sage packages in python. When I list the installed sage packages, there is igraph and python-igraph. But `from sage.all import *`

will not import them into python. I'd like to know, what kind of packages can be imported when I use `from sage.all import *`

.

BTW, the proper way to use `igraph`

in python is `import igraph`

with `python_igraph`

installed.

ps: My karma is insufficient to publish links.

FYI links need to have an explicit

`http://`

in front of them to auto convert. Or you can format them explicitly with the markdown`[link descrption](http://example.com/link)`

.@paulmasson, at the time of posting, the original poster had karma too low to post links.