Rename docling backend to v4

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

docling/backend/docling_parse_v4_backend.py

@@ -20,7 +20,7 @@ if TYPE_CHECKING:
 _log = logging.getLogger(__name__)
 
 
-class DoclingParseV3PageBackend(PdfPageBackend):
+class DoclingParseV4PageBackend(PdfPageBackend):
     def __init__(self, parsed_page: SegmentedPdfPage, page_obj: PdfPage):
         self._ppage = page_obj
         self._dpage = parsed_page
@@ -144,7 +144,7 @@ class DoclingParseV3PageBackend(PdfPageBackend):
         self._dpage = None
 
 
-class DoclingParseV3DocumentBackend(PdfDocumentBackend):
+class DoclingParseV4DocumentBackend(PdfDocumentBackend):
     def __init__(self, in_doc: "InputDocument", path_or_stream: Union[BytesIO, Path]):
         super().__init__(in_doc, path_or_stream)
 
@@ -171,8 +171,8 @@ class DoclingParseV3DocumentBackend(PdfDocumentBackend):
 
     def load_page(
         self, page_no: int, create_words: bool = True, create_textlines: bool = True
-    ) -> DoclingParseV3PageBackend:
+    ) -> DoclingParseV4PageBackend:
-        return DoclingParseV3PageBackend(
+        return DoclingParseV4PageBackend(
             self.dp_doc.get_page(
                 page_no + 1,
                 create_words=create_words,

docling/cli/main.py

@@ -15,7 +15,7 @@ from docling_core.utils.file import resolve_source_to_path
 from pydantic import TypeAdapter
 
 from docling.backend.docling_parse_v2_backend import DoclingParseV2DocumentBackend
-from docling.backend.docling_parse_v3_backend import DoclingParseV3DocumentBackend
+from docling.backend.docling_parse_v4_backend import DoclingParseV4DocumentBackend
 from docling.backend.pdf_backend import PdfDocumentBackend
 from docling.backend.pypdfium2_backend import PyPdfiumDocumentBackend
 from docling.datamodel.base_models import (
@@ -416,8 +416,8 @@ def convert(
             backend = DoclingParseV2DocumentBackend
         elif pdf_backend == PdfBackend.DLPARSE_V2:
             backend = DoclingParseV2DocumentBackend
-        elif pdf_backend == PdfBackend.DLPARSE_V3:
+        elif pdf_backend == PdfBackend.DLPARSE_V4:
-            backend = DoclingParseV3DocumentBackend  # type: ignore
+            backend = DoclingParseV4DocumentBackend  # type: ignore
         elif pdf_backend == PdfBackend.PYPDFIUM2:
             backend = PyPdfiumDocumentBackend  # type: ignore
         else:

docling/datamodel/pipeline_options.py

@@ -301,7 +301,7 @@ class PdfBackend(str, Enum):
     PYPDFIUM2 = "pypdfium2"
     DLPARSE_V1 = "dlparse_v1"
     DLPARSE_V2 = "dlparse_v2"
-    DLPARSE_V3 = "dlparse_v3"
+    DLPARSE_V4 = "dlparse_v4"
 
 
 # Define an enum for the ocr engines

docs/examples/batch_convert.py

@@ -7,7 +7,7 @@ from typing import Iterable
 import yaml
 from docling_core.types.doc import ImageRefMode
 
-from docling.backend.docling_parse_v3_backend import DoclingParseV3DocumentBackend
+from docling.backend.docling_parse_v4_backend import DoclingParseV4DocumentBackend
 from docling.datamodel.base_models import ConversionStatus, InputFormat
 from docling.datamodel.document import ConversionResult
 from docling.datamodel.pipeline_options import PdfPipelineOptions
@@ -145,7 +145,7 @@ def main():
     doc_converter = DocumentConverter(
         format_options={
             InputFormat.PDF: PdfFormatOption(
-                pipeline_options=pipeline_options, backend=DoclingParseV3DocumentBackend
+                pipeline_options=pipeline_options, backend=DoclingParseV4DocumentBackend
             )
         }
     )

tests/test_backend_docling_parse_v4.py

@@ -2,9 +2,9 @@ from pathlib import Path
 
 import pytest
 
-from docling.backend.docling_parse_v3_backend import (
+from docling.backend.docling_parse_v4_backend import (
-    DoclingParseV3DocumentBackend,
+    DoclingParseV4DocumentBackend,
-    DoclingParseV3PageBackend,
+    DoclingParseV4PageBackend,
 )
 from docling.datamodel.base_models import BoundingBox, InputFormat
 from docling.datamodel.document import InputDocument
@@ -19,7 +19,7 @@ def _get_backend(pdf_doc):
     in_doc = InputDocument(
         path_or_stream=pdf_doc,
         format=InputFormat.PDF,
-        backend=DoclingParseV3DocumentBackend,
+        backend=DoclingParseV4DocumentBackend,
     )
 
     doc_backend = in_doc._backend
@@ -34,7 +34,7 @@ def test_text_cell_counts():
     for page_index in range(0, doc_backend.page_count()):
         last_cell_count = None
         for i in range(10):
-            page_backend: DoclingParseV3PageBackend = doc_backend.load_page(0)
+            page_backend: DoclingParseV4PageBackend = doc_backend.load_page(0)
             cells = list(page_backend.get_text_cells())
 
             if last_cell_count is None:
@@ -49,7 +49,7 @@ def test_text_cell_counts():
 
 def test_get_text_from_rect(test_doc_path):
     doc_backend = _get_backend(test_doc_path)
-    page_backend: DoclingParseV3PageBackend = doc_backend.load_page(0)
+    page_backend: DoclingParseV4PageBackend = doc_backend.load_page(0)
 
     # Get the title text of the DocLayNet paper
     textpiece = page_backend.get_text_in_rect(
@@ -62,7 +62,7 @@ def test_get_text_from_rect(test_doc_path):
 
 def test_crop_page_image(test_doc_path):
     doc_backend = _get_backend(test_doc_path)
-    page_backend: DoclingParseV3PageBackend = doc_backend.load_page(0)
+    page_backend: DoclingParseV4PageBackend = doc_backend.load_page(0)
 
     # Crop out "Figure 1" from the DocLayNet paper
     im = page_backend.get_page_image(

tests/test_e2e_conversion.py

@@ -1,6 +1,6 @@
 from pathlib import Path
 
-from docling.backend.docling_parse_v3_backend import DoclingParseV3DocumentBackend
+from docling.backend.docling_parse_v4_backend import DoclingParseV4DocumentBackend
 from docling.datamodel.base_models import InputFormat
 from docling.datamodel.document import ConversionResult
 from docling.datamodel.pipeline_options import AcceleratorDevice, PdfPipelineOptions
@@ -34,7 +34,7 @@ def get_converter():
     converter = DocumentConverter(
         format_options={
             InputFormat.PDF: PdfFormatOption(
-                pipeline_options=pipeline_options, backend=DoclingParseV3DocumentBackend
+                pipeline_options=pipeline_options, backend=DoclingParseV4DocumentBackend
             )
         }
     )

tests/test_e2e_ocr_conversion.py

@@ -2,7 +2,7 @@ import sys
 from pathlib import Path
 from typing import List
 
-from docling.backend.docling_parse_v3_backend import DoclingParseV3DocumentBackend
+from docling.backend.docling_parse_v4_backend import DoclingParseV4DocumentBackend
 from docling.datamodel.base_models import InputFormat
 from docling.datamodel.document import ConversionResult
 from docling.datamodel.pipeline_options import (
@@ -45,7 +45,7 @@ def get_converter(ocr_options: OcrOptions):
         format_options={
             InputFormat.PDF: PdfFormatOption(
                 pipeline_options=pipeline_options,
-                backend=DoclingParseV3DocumentBackend,
+                backend=DoclingParseV4DocumentBackend,
             )
         }
     )

tests/test_interfaces.py

@@ -3,7 +3,7 @@ from pathlib import Path
 
 import pytest
 
-from docling.backend.docling_parse_v3_backend import DoclingParseV3DocumentBackend
+from docling.backend.docling_parse_v4_backend import DoclingParseV4DocumentBackend
 from docling.datamodel.base_models import DocumentStream, InputFormat
 from docling.datamodel.pipeline_options import PdfPipelineOptions
 from docling.document_converter import DocumentConverter, PdfFormatOption
@@ -31,7 +31,7 @@ def converter():
     converter = DocumentConverter(
         format_options={
             InputFormat.PDF: PdfFormatOption(
-                pipeline_options=pipeline_options, backend=DoclingParseV3DocumentBackend
+                pipeline_options=pipeline_options, backend=DoclingParseV4DocumentBackend
             )
         }
     )

tests/test_options.py

@@ -3,7 +3,7 @@ from pathlib import Path
 
 import pytest
 
-from docling.backend.docling_parse_v3_backend import DoclingParseV3DocumentBackend
+from docling.backend.docling_parse_v4_backend import DoclingParseV4DocumentBackend
 from docling.datamodel.base_models import ConversionStatus, InputFormat
 from docling.datamodel.document import ConversionResult
 from docling.datamodel.pipeline_options import (
@@ -33,7 +33,7 @@ def get_converters_with_table_options():
                 format_options={
                     InputFormat.PDF: PdfFormatOption(
                         pipeline_options=pipeline_options,
-                        backend=DoclingParseV3DocumentBackend,
+                        backend=DoclingParseV4DocumentBackend,
                     )
                 }
             )