Siphon 0.4.1 has been released with fixes for some minor issues in 0.4.0, including various fixes for catalog parsing, as well as updated documentation. Full releases notes are available on the GitHub Release page
Siphon packages are available for Conda on the conda-forge channel, and for pip from the Python Package Index.
Let us know if you run into any problems, either at Siphon's issue tracker, or on the Unidata python-users list.
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