Bug#896274: python3-segyio: segyio fails to import

[Jørgen Kvalsvik]

From: Helmut Grohne <helmut at subdivi.de>
Sent: Friday, April 20, 2018 10:01 PM
To: submit at bugs.debian.org
Subject: Bug#896274: python3-segyio: segyio fails to import

Package: python3-segyio
Version: 1.5.2-1
Severity: serious
User: helmutg at debian.org
Usertags: python-import

After installing python3-segyio importing the module segyio
into a python interpreter fails with the following error:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/segyio/__init__.py", line 87, in <module>
    from .open import open
  File "/usr/lib/python3/dist-packages/segyio/open.py", line 1, in <module>
    import numpy
ModuleNotFoundError: No module named 'numpy'

The vast majority of import failures is attributed to missing dependencies.
Often times that manifests as an ImportError or ModuleNotFoundError.
Typically, dependencies should be inserted by dh-python via ${python:Depends}
or ${python3:Depends}. Thus a missing dependency can be caused by incomplete
install_requires in setup.py. Sometimes a missing dependency of a dependency
is the cause, in such cases this bug should be reassigned.

Helmut

________________________________________

I can confirm this and I'm working on a solution. I'm working with my sponsor and the Debian Science team to address this, and to add an autopkgtest for the future.

The source is pybuild not detecting the numpy dependency properly, because the setup.py script is run as a part of a larger cmake project, and it didn't pick up on the requirements.txt file.


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