Fix streaming support.

corpus-carolina.py

@@ -21,6 +21,9 @@ import datasets
 import gzip
 
 
+logger = datasets.logging.get_logger(__name__)
+
+
 _HOMEPAGE = "https://sites.usp.br/corpuscarolina/"
 
 
@@ -188,22 +191,23 @@ class Carolina(datasets.GeneratorBasedBuilder):
         )
 
         _key = 0
-        for path in filepaths:
-            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
-                    for e in tei.findall(f".//{TEI_NS}body/{TEI_NS}p")
-                    if e.text is not None
-                ])
-
-                yield _key, {
-                    "meta": meta,
-                    "text": text
-                }
-                _key += 1
-
-            gzip_file.close()
+        for doc_path in filepaths:
+            logger.info("generating examples from = %s", doc_path)
+            with gzip.open(open(doc_path, "rb"), "rb") as gzip_file:
+                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
+                        for e in tei.findall(f".//{TEI_NS}body/{TEI_NS}p")
+                        if e.text is not None
+                    ])
+
+                    yield _key, {
+                        "meta": meta,
+                        "text": text
+                    }
+                    _key += 1
+
+                gzip_file.close()