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README.md

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+---
+annotations_creators:
+- no-annotation
+language_creators:
+- crowdsourced
+pretty_name: Wikipedia
+paperswithcode_id: null
+license:
+- cc-by-sa-3.0
+- gfdl
+task_categories:
+- text-generation
+- fill-mask
+task_ids:
+- language-modeling
+- masked-language-modeling
+source_datasets:
+- original
+multilinguality:
+- multilingual
+size_categories:
+- n<1K
+- 1K<n<10K
+- 10K<n<100K
+- 100K<n<1M
+- 1M<n<10M
+language:
+   - bg
+   - cs
+   - da
+   - de
+   - el
+   - en
+   - es
+   - et
+   - fi
+   - fr
+   - ga
+   - hr
+   - hu
+   - it
+   - lt
+   - lv
+   - mt
+   - nl
+   - pl
+   - pt
+   - ro
+   - sk
+   - sl
+   - sv
+---
+
+# Dataset Card for Wikipedia
+
+This repo is a wrapper around [olm/wikipedia](https://huggingface.co/datasets/olm/wikipedia) that just concatenates data from the EU languages.
+Please refer to it for a complete data card.
+
+The EU languages we include are:
+   - bg
+   - cs
+   - da
+   - de
+   - el
+   - en
+   - es
+   - et
+   - fi
+   - fr
+   - ga
+   - hr
+   - hu
+   - it
+   - lt
+   - lv
+   - mt
+   - nl
+   - pl
+   - pt
+   - ro
+   - sk
+   - sl
+   - sv
+
+
+As with `olm/wikipedia` you will need to install a few dependencies:
+
+
+```
+pip install mwparserfromhell==0.6.4 multiprocess==0.70.13
+```
+
+```python
+from datasets import load_dataset
+
+load_dataset("dlwh/eu_wikipedias", date="20221101")
+```
+
+Please refer to the original olm/wikipedia for a complete data card.

eu_wikipedias.py

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+# This is a huggingface dataset script to load wikipedias for the eu languages using olm/wikipedia
+
+# https://huggingface.co/datasets/olm/wikipedia/blob/main/wikipedia.py
+
+import datasets
+from datasets import DatasetDict
+
+logger = datasets.logging.get_logger(__name__)
+
+
+_CITATION = """\
+@ONLINE {wikidump,
+    author = {Wikimedia Foundation},
+    title  = {Wikimedia Downloads},
+    url    = {https://dumps.wikimedia.org}
+}
+"""
+
+_DESCRIPTION = """\
+Wikipedia dataset containing cleaned articles of all languages.
+The datasets are built from the Wikipedia dump
+(https://dumps.wikimedia.org/) with one split per language. Each example
+contains the content of one full Wikipedia article with cleaning to strip
+markdown and unwanted sections (references, etc.).
+"""
+
+_LICENSE = (
+    "This work is licensed under the Creative Commons Attribution-ShareAlike "
+    "3.0 Unported License. To view a copy of this license, visit "
+    "http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to "
+    "Creative Commons, PO Box 1866, Mountain View, CA 94042, USA."
+)
+
+_VERSION = datasets.Version("1.0.0", "")
+
+
+eu_languages = [
+    "bg",
+    "cs",
+    # "da",
+    # "de",
+    # "el",
+    # "en",
+    # "es",
+    # "et",
+    # "fi",
+    # "fr",
+    # "ga",
+    # "hr",
+    # "hu",
+    # "it",
+    # "lt",
+    # "lv",
+    # "mt",
+    # "nl",
+    # "pl",
+    # "pt",
+    # "ro",
+    # "sk",
+    # "sl",
+    # "sv",
+]
+
+class WikipediaConfig(datasets.BuilderConfig):
+    """BuilderConfig for EuWikipedia."""
+
+    def __init__(self, date=None, version=_VERSION, **kwargs):
+        """BuilderConfig for Wikipedia.
+        Args:
+          date: string, date of the Wikipedia dump in YYYYMMDD format. A list of
+            available dates can be found at https://dumps.wikimedia.org/enwiki/.
+          **kwargs: keyword arguments forwarded to super.
+        """
+        super().__init__(
+            name=f"{date}",
+            description=f"Wikipedia dataset for EU languages, parsed from {date} dump.",
+            version=version,
+            **kwargs,
+        )
+        self.date = date
+
+
+_DATE = "20221101"
+
+
+class EuWikipedia(datasets.GeneratorBasedBuilder):
+    """Wikipedia dataset."""
+
+    # Use mirror (your.org) to avoid download caps.
+    BUILDER_CONFIG_CLASS = WikipediaConfig
+    BUILDER_CONFIGS = [WikipediaConfig(date=_DATE,)]
+
+    def _info(self):
+        return datasets.DatasetInfo(
+            description=_DESCRIPTION,
+            features=datasets.Features(
+                {
+                    "id": datasets.Value("string"),
+                    "url": datasets.Value("string"),
+                    "title": datasets.Value("string"),
+                    "text": datasets.Value("string"),
+                }
+            ),
+            # No default supervised_keys.
+            supervised_keys=None,
+            homepage="https://dumps.wikimedia.org",
+            citation=_CITATION,
+        )
+
+    def _split_generators(self, dl_manager):
+        return [
+            datasets.SplitGenerator(
+                name=datasets.Split.TRAIN, gen_kwargs={"date": self.config.date}
+            )
+        ]
+
+    def _generate_examples(self, date):
+        # defer to olm/wikipedia
+        for lang in eu_languages:
+            for example in datasets.load_dataset("olm/wikipedia", language=lang, date=date):
+                yield example