Hail Locus (and other Python data types) in __eq__, etc. should check if the RHS is a Hail Expression and delegate to the expression instead.

[danking]

What happened?

See confusing behavior here:

https://discuss.hail.is/t/subset-matrix-table-to-a-medium-sized-list-of-variants/3362/6?u=danking

In [54]: vstruct
Out[54]: Struct(locus=Locus(contig=10, position=60515, reference_genome=GRCh37), alleles=['C', 'T'])

In [55]: (vstruct == minimt.row_key)
Out[55]: False

Version

0.2.105

Relevant log output

No response

[ehigham]

Reproduction example:

import hail as hl
vstruct = hl.Struct(
  locus=hl.Locus(contig=10, position=60515, reference_genome='GRCh37'),
  alleles=['C', 'T']
)

row_key = hl.struct(
  locus=hl.locus(contig='10', pos=60515, reference_genome='GRCh37'),
  alleles=['C', 'T']
)

assert hl.eval(row_key == vstruct)
assert vstruct == row_key # <- Fail