Update loading script to v1.2

corpus-carolina.py

@@ -18,6 +18,7 @@ from collections import defaultdict
 from lxml import etree
 import os
 import datasets
+import gzip
 
 
 _HOMEPAGE = "https://sites.usp.br/corpuscarolina/"
@@ -158,32 +159,23 @@ class Carolina(datasets.GeneratorBasedBuilder):
         # download checksum files
         checksum_urls = {t: _CHECKSUM_FNAME.format(tax=t) for t in taxonomies}
         checksum_paths = dl_manager.download(checksum_urls)
-        
+
         # prepare xml file name and zip urls
-        zip_urls = dict()   # xml
+        gzip_urls = list()
         for tax, cpath in checksum_paths.items():
             tax_path = _CORPUS_URL.format(tax=tax)
             with open(cpath, encoding="utf-8") as cfile:
                 for line in cfile:
                     xml_tax_path = line.split()[1]                  # xml file inside taxonomy
-                    zip_fname = xml_tax_path + ".zip"               # zip file inside taxonomy
-                    xml_fname = xml_tax_path.split('/')[-1]         # xml file name only
+                    zip_fname = xml_tax_path + ".gz"                # zip file inside taxonomy
                     zip_fpath = os.path.join(tax_path, zip_fname)   # path inside corpus
-                    zip_urls[xml_fname] = zip_fpath                 # xml file -> zip path
-
-        # extractions are made in cache folders and
-        # the path returned is the folder path, not the
-        # extracted file (or files). It is necessary to
-        # build the xml file path. It is made using the
-        # zip_urls dict structure.
-        extracted = dl_manager.download_and_extract(zip_urls)
-        xml_files = [os.path.join(v, k) for k, v in extracted.items()]
-        xml_files = sorted(xml_files)
+                    gzip_urls.append(zip_fpath)
 
+        gzip_files = dl_manager.download(gzip_urls)
         return [
             datasets.SplitGenerator(
                 name="corpus",
-                gen_kwargs={"filepaths": xml_files}
+                gen_kwargs={"filepaths": gzip_files}
             )
         ]
 
@@ -197,10 +189,10 @@ class Carolina(datasets.GeneratorBasedBuilder):
 
         _key = 0
         for path in filepaths:
-            # parse xml file
-            for _, tei in etree.iterparse(path, **parser_params):
+            gzip_file = gzip.GzipFile(path, "rb")
+            for _, tei in etree.iterparse(gzip_file, **parser_params):
                 header = tei.find(f"{TEI_NS}teiHeader")
-                
+
                 meta = etree.tostring(
                     header, encoding="utf-8").decode("utf-8")
                 text = ' '.join([e.text
@@ -208,9 +200,10 @@ class Carolina(datasets.GeneratorBasedBuilder):
                     if e.text is not None
                 ])
 
-                example = {
+                yield _key, {
                     "meta": meta,
                     "text": text
                 }
-                yield _key, example
                 _key += 1
+
+            gzip_file.close()