def create_text_corpus_from_zipfile(
zf: ZipFile,
pattern='.*\.txt',
ensure_loaded=True) -> PlaintextCorpusReader:
'''
Loads a text corpus contained in a zipfile.
'''
pointer = ZipFilePathPointer(zf)
corpus = PlaintextCorpusReader(pointer, pattern)
if ensure_loaded:
corpus.ensure_loaded()
return corpus
