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equinor / segyio

Fast Python library for SEGY files.
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cannot import name '_segyio' from 'segyio' #502

Closed mabe2312 closed 3 years ago

mabe2312 commented 3 years ago

Hello segyio team

I am trying to familiarize myself with segyio but i am met with the following message:

cannot import name '_segyio' from 'segyio'

Whenever i try to run the examples described on the github page

Any help would be much appreciated

jokva commented 3 years ago

Hi,

In order to make testing easier and certain types of loading faster, the C++ bits of segyio is loaded on use, and not in import. Loading on import is fine for the pypi packages, but does give a few extra issues in some very specific (and somwhat useful) scenarios. Unfortunately, that also triggers the error you see in some cases.

You can explicitly load the C++ module by doing import segyio._segyio, or by going through the file handle. Which example did you struggle with?

mabe2312 commented 3 years ago

Hello Jørgen

Sorry for the very late reply, i totally missed it in my inbox.

I messed around with a few different methods of installing the segyio package and finally one of them, i cant recall which exactly, no longer produced the described error.

Thank you for your message.

Kind regards Simon Mabe

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Den man. 22. feb. 2021 kl. 09.57 skrev Jørgen Kvalsvik < @.***>:

Hi,

In order to make testing easier and certain types of loading faster, the C++ bits of segyio is loaded on use, and not in import. Loading on import is fine for the pypi packages, but does give a few extra issues in some very specific (and somwhat useful) scenarios. Unfortunately, that also triggers the error you see in some cases.

You can explicitly load the C++ module by doing import segyio._segyio, or by going through the file handle. Which example did you struggle with?

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jokva commented 3 years ago

Good, thanks! Then I'm considering this solved.