Ni! Hi ashu,
Please, always try to *read errors carefully* and consult the
documentation. Not to mention, provide self-contained examples.
Python is throwing a "TypeError" and telling you it expects an integer
('unsigned long', the C++ type for vertex indices) while you are passing it
a string ('str').
As you can see in the documentation
<https://graph-tool.skewed.de/static/doc/graph_tool.html>, if you want to
pass strings to add_edge_list you should set two additional arguments:
`hash=True` and `string_vals=True`.
If that doesn't fix it, you'll have to provide a self-contained example
where the error occurs, otherwise we can't really help.
.~ยด
On Wed, Jul 18, 2018 at 9:37 AM, ashutosh <[email protected]> wrote:
> Hi,
>
> I'm trying to convert two columns of my pandas dataframe into network using
> them as edge list.
> A similar query
> <https://stackoverflow.com/questions/35459597/graph-tool-
> reading-edge-lists-from-pandas-dataframe>
> was posted in StackOverflow but with different problem and it didn't help
> me.
>
> When I am trying the following code it gives me error:
> *
> myGraph.add_edge_list(i for i in df[['node1','node2']].values.tolist())*
>
> Where, my Graph is the graph; df is the dataframe with 4 columns out of
> which I am using two 'node1' and 'node2'.
>
> *File "/usr/lib/python3/dist-packages/graph_tool/__init__.py", line 2109,
> in
> add_edge_list
> libcore.add_edge_list_iter(self.__graph, edge_list, eprops)*
>
> *TypeError: No registered converter was able to produce a C++ rvalue of
> type
> unsigned long from this Python object of type str
> *
>
>
> I tried upgrading my boost library but it doesn't solve the problem. Any
> suggestions ?
>
>
>
> --
> Sent from: http://main-discussion-list-for-the-graph-tool-project.
> 982480.n3.nabble.com/
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