def test_search():
query1 = rcsb.ResolutionQuery(0.0, 0.8)
query2 = rcsb.MolecularWeightQuery(0, 1000)
ids_query1 = sorted(rcsb.search(query1))
ids_query2 = sorted(rcsb.search(query2))
ids_comp = sorted(rcsb.search(rcsb.CompositeQuery("or", [query1, query2])))
ids_comp2 = []
for id in ids_query1 + ids_query2:
if id not in ids_comp2:
ids_comp2.append(id)
assert ids_comp == sorted(ids_comp2)
query = rcsb.ResolutionQuery(0.0, 0.6)
pdb_ids = rcsb.search(query)
print(pdb_ids)
files = rcsb.fetch(pdb_ids, "mmtf", biotite.temp_dir())
########################################################################
# Not all query types of the SEARCH service are supported yet. But it is
# quite easy to implement your needed query type by inheriting
# :class:`SimpleQuery`.
#
# Multiple :class:`SimpleQuery` objects can be 'and'/'or' combined using
# a :class:`CompositeQuery`.
query1 = rcsb.ResolutionQuery(0.0, 1.0)
query2 = rcsb.MolecularWeightQuery(10000, 100000)
composite = rcsb.CompositeQuery("and", [query1, query2])
########################################################################
# Fetching files from the NCBI Entrez database
# --------------------------------------------
#
# .. currentmodule:: biotite.database.entrez
#
# Another important source of biological information is the
# *NCBI Entrez* database, which is commonly known as *the NCBI*.
# It provides a myriad of information, ranging from sequences and
# sequence features to scientific papers. Fetching files from
# NCBI Entrez works analogous to the RCSB interface. This time
# we have to provide the UIDs (Accession or GI) instead of PDB IDs
# to the :func:`fetch()` function.
def test_search_empty():
ids = rcsb.search(rcsb.MolecularWeightQuery(0, 1))
assert len(ids) == 0