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mrzv / dionysus

Library for computing persistent homology
http://mrzv.org/software/dionysus2
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No module named _dionysus #10

Closed tmelorc closed 6 years ago

tmelorc commented 6 years ago

Hello, I have just installed following procedures from here: http://mrzv.org/software/dionysus2/.

But I am not able to load it. See below what happens. Any help, please.

thiago@chumbinho ~ $ python Python 2.7.12 (default, Nov 19 2016, 06:48:10) [GCC 5.4.0 20160609] on linux2 Type "help", "copyright", "credits" or "license" for more information.

import dionysus Traceback (most recent call last): File "", line 1, in File "/home/thiago/dionysus/build/bindings/python/dionysus/init.py", line 2, in from ._dionysus import * ImportError: No module named _dionysus

mrzv commented 6 years ago

I'd need more information to debug this. What commands did you enter to install dionysus, and what was their output?

tmelorc commented 6 years ago

I did:

git clone https://github.com/mrzv/dionysus.git mkdir build cd build cmake .. make export PYTHONPATH=.../build/bindings/python:$PYTHONPATH

I believe that everything was smooth. Then I opened another terminal and typed as in previous message.

Let me inform that yesterday I also tried to install Dionysus 1 via pip and some examples was working but not the one using alpha2d.

If necessary, no problem to remove and start from beginning. Thanks.

mrzv commented 6 years ago

You have to run export PYTHONPATH=... from the same terminal from which you are going to launch python. It's not a global command. (To make it global, you need to add it to your .bashrc or .zshrc, or something else, depending on the terminal you are using.)

I also don't understand the remark about Dionysus 1; there are no pip packages for Dionysus 1 that I know of.