Sc2ts (“SARS-CoV-2 to tree sequence”) provides methods to infer Ancestral Recombination Graphs (ARGs) for SARS-CoV-2 data at pandemic scale, plus convenient wrappers around tskit and Zarr for working with the resulting tree sequences and associated data.
import tszip, sc2ts
ts = tszip.load("sc2ts_viridian_v1.2.trees.tsz")
df_node = sc2ts.node_data(ts)