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astropy.io: ImportError: No module named _bz2

See original GitHub issue

Hello, I am using Debian 8.7 and I got the following import error while importing fits from the astropy.io (astropy Version: 1.3.2).

from astropy.io import fits
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python2.7/site-packages/astropy/io/fits/__init__.py", line 70, in <module>
    from . import convenience
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python2.7/site-packages/astropy/io/fits/convenience.py", line 64, in <module>
    from .file import FILE_MODES, _File
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python2.7/site-packages/astropy/io/fits/file.py", line 5, in <module>
    import bz2
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python/bz2.py", line 20, in <module>
    from _bz2 import BZ2Compressor, BZ2Decompressor
ImportError: No module named _bz2

Similarly, astropy.test() gives me the following errors.

>>> astropy.test()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python2.7/site-packages/astropy/utils/decorators.py", line 874, in test
    func = make_function_with_signature(func, name=name, **wrapped_args)
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python2.7/site-packages/astropy/tests/runner.py", line 224, in test
    return runner.run_tests(**kwargs)
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python2.7/site-packages/astropy/tests/runner.py", line 516, in run_tests
    from ..table import Table  # pylint: disable=W0611
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python2.7/site-packages/astropy/table/__init__.py", line 59, in <module>
    from ..io.fits import connect
  File "/gbdata/ScienceTools-v10r0p5-fssc-20150518-/x86_64-unknown-linux-gnu-libc2.19-10/lib/python2.7/site-packages/astropy/io/fits/__init__.py", line 16, in <module>
    from . import py3compat
ImportError: cannot import name py3compat

Any help will be highly appreciated.

Issue Analytics

State:
Created 6 years ago
Comments:10 (8 by maintainers)

Top GitHub Comments

2reactions

dhomeiercommented, Nov 21, 2019

OK, I am preparing a PR.

2reactions

saimncommented, Nov 21, 2019

Since bz2 is an optional dependency for Python I think it makes sense to treat it as an optional dependency in astropy. Reopening the issue then, since @MSeifert04 agreed two years ago 😉

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