Thanks, I understand. 在 2016年11月7日星期一 UTC+1下午7:35:10，Dima Pasechnik写道： > > > > On Monday, November 7, 2016 at 2:12:14 PM UTC, Eden Harder wrote: >> >> Thanks for you reply. I know import igraph works in sage. But I have >> installed two different packages: igraph and python_igraph. And what I want >> to do is import them in python. >> > > python-igraph is a python interface to igraph, which seems to be a library > written in C. > IMHO you cannot use igraph from python without using python-igraph (the > latter is known to python simply as igraph)---or perhaps some other python > interface, which might even be conflicting with python-igraph... > > In short, I'd think that 'import igraph' is all you need to use igraph > from python. > > By the way, if you first install python-igraph by doing > sage --pip install python-igraph > > and then do > sage --pip install igraph > > you will see a lot of "Requirement already satisfied:", and nothing else > which seems to say that igraph is a part of python-igraph. > > > > HTH, > Dima > > > > > >> >> 在 2016年11月7日星期一 UTC+1下午2:29:58，Jeroen Demeyer写道： >>> >>> On 2016-11-07 13:52, Eden Harder wrote: >>> > I installed sagemath with hombrew on MacOS. And later I use `sage -i >>> > python_igraph` to install python_igraph. After that, I found that >>> > >>> > 1. I cannot import python_igraph in sage >>> >>> The correct command is: >>> >>> import igraph >>> >>
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