alignment import fail

[LunaSare]

nexus alignments such as https://github.com/McTavishLab/physcraperex/blob/master/data-raw/alignments/Tr5276-M3802.nex
fail to be imported by dendropy.

Issue seems to be originated by a parentheses used at the charset.

Running:

physcraper_run.py -s pg_238 -t tree109 -a physcraperex/data-raw/alignments/Tr5276-M3802.nex -as nexus -o test

Returns:

No config file, using defaults
Configuration Settings
[blast]
Entrez.email = None
e_value_thresh = 1e-05
hitlist_size = 10
location = remote
localblastdb = None
num_threads = 4
delay = 90
[physcraper]
spp_threshold = 5
min_length = 0.8
max_length = 1.2

get_mrca_ott
(v3) MRCA of sampled taxa is Ascomycota
alignment tag is Tr5276-M3802
Traceback (most recent call last):
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/bin/physcraper_run.py", line 7, in <module>
    exec(compile(f.read(), __file__, 'exec'))
  File "/Users/luna/pj_physcraper/physcraper/bin/physcraper_run.py", line 178, in <module>
    configfile = conf)
  File "/Users/luna/pj_physcraper/physcraper/physcraper/opentree_helpers.py", line 281, in scraper_from_opentree
    tree_id=tree_id)
  File "/Users/luna/pj_physcraper/physcraper/physcraper/opentree_helpers.py", line 215, in generate_ATT_from_phylesystem
    return physcraper.aligntreetax.AlignTreeTax(tree = otu_newick, otu_dict =otu_dict, alignment=alnfile, aln_schema = aln_schema, search_taxon=ott_mrca, workdir=workdir, configfile=configfile)
  File "/Users/luna/pj_physcraper/physcraper/physcraper/aligntreetax.py", line 214, in __init__
    self.read_in_aln(alignment, aln_schema)
  File "/Users/luna/pj_physcraper/physcraper/physcraper/aligntreetax.py", line 272, in read_in_aln
    self.aln = DnaCharacterMatrix.get(path=alignment, schema=aln_schema, taxon_namespace = self.tns)
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/lib/python3.7/site-packages/dendropy/datamodel/charmatrixmodel.py", line 606, in get
    return cls._get_from(**kwargs)
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/lib/python3.7/site-packages/dendropy/datamodel/basemodel.py", line 156, in _get_from
    return cls.get_from_path(src=src, schema=schema, **kwargs)
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/lib/python3.7/site-packages/dendropy/datamodel/basemodel.py", line 219, in get_from_path
    **kwargs)
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/lib/python3.7/site-packages/dendropy/datamodel/charmatrixmodel.py", line 527, in _parse_and_create_from_stream
    global_annotations_target=None)
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/lib/python3.7/site-packages/dendropy/dataio/ioservice.py", line 377, in read_char_matrices
    global_annotations_target=global_annotations_target)
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/lib/python3.7/site-packages/dendropy/dataio/nexusreader.py", line 363, in _read
    self._parse_nexus_stream(stream)
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/lib/python3.7/site-packages/dendropy/dataio/nexusreader.py", line 583, in _parse_nexus_stream
    self._parse_charset_statement(block_title=block_title, link_title=link_title)
  File "/Users/luna/pj_physcraper/physcraper/venv-physcraper/lib/python3.7/site-packages/dendropy/dataio/nexusreader.py", line 1145, in _parse_charset_statement
    raise self._nexus_error('Expecting "=" after character set name "%s", but instead found "%s"' % (charset_name, token))
dendropy.dataio.nexusreader.NexusReaderError: Error parsing data source 'data-raw/alignments/Tr5276-M3802.nex' on line 915 at column 18: Expecting "=" after character set name "RPB1C2", but instead found "("