Fixes several bugs in reader_dispatch #108
Merged
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This PR fixes two bugs in
Thicket.reader_dispatch
.First, it fixes type checking in the function. Currently,
reader_dispatch
usestype(var) = expected_type
. This syntax may work in some cases. However, there is no guarantee it will work for all types, and the Python Software Foundation has reserved the right to completely invalidate this syntax in the future. This PR fixes this type checking by switching it to the more correctisinstance(var, expected_type)
syntax.Additionally, this PR fixes a bug in
Thicket.reader_dispatch
that would cause extra positional and keyword arguments to not be forwarded to the corresponding Hatchet function if the user passed in a list or tuple of filenames. This is particularly problematic forThicket.from_caliper
because it means thequery
argument is not forwarded to Hatchet, causingThicket.from_caliper
to fail in all cases.