`Page.get_text` results in `AssertionError` for epub files

[arun-mani-j]

Description of the bug

Page.get_text results in AssertionError for all options except "blocks" and "words" in epub files. However, directly accessing the methods from TextPage works fine.

This is there only in 1.24.7 I think. My distribution package of 1.23.7 does not cause this error.

How to reproduce the bug

1. Download an epub file, I was able to reproduce the bug with https://www.gutenberg.org/ebooks/73987 for context.
2. Run the following code.

import pymupdf

doc = pymupdf.open("/home/arun-mani-j/Downloads/test.epub")

p = doc[0]

p.get_text("text")
---------------------------------------------------------------------------
AssertionError                            Traceback (most recent call last)
----> 1 p.get_text("text")

~/Projects/aayra/lib/python3.12/site-packages/pymupdf/utils.py in ?(page, option, clip, flags, textpage, sort, delimiters)
    794     if clip is not None:
    795         clip = pymupdf.Rect(clip)
    796         cb = None
    797     elif type(page) is pymupdf.Page:
--> 798         cb = page.cropbox
    799     # pymupdf.TextPage with or without images
    800     tp = textpage
    801     #pymupdf.exception_info()

~/Projects/aayra/lib/python3.12/site-packages/pymupdf/__init__.py in ?(self)
   8531     @property
   8532     def cropbox(self):
   8533         """The CropBox."""
   8534         CheckParent(self)
-> 8535         page = self._pdf_page()
   8536         if not page.m_internal:
   8537             val = mupdf.fz_bound_page(self.this)
   8538         else:

~/Projects/aayra/lib/python3.12/site-packages/pymupdf/__init__.py in ?(self)
   8050     def _pdf_page(self):
-> 8051         return _as_pdf_page(self.this)

~/Projects/aayra/lib/python3.12/site-packages/pymupdf/__init__.py in ?(page, required)
    333         return page
    334     elif isinstance(page, mupdf.FzPage):
    335         ret = mupdf.pdf_page_from_fz_page(page)
    336         if required:
--> 337             assert ret.m_internal
    338         return ret
    339     elif page is None:
    340         assert 0, f'page is None'

AssertionError: 

3. Using TextPage methods directly works fine.

tp = p.get_textpage()
tp.extractText() # No errors raised

4. Using "words" or "blocks" work fine.

p.get_text("words")
p.get_text("blocks")

PyMuPDF version

1.24.7

Operating system

Linux

Python version

3.12

[julian-smith-artifex-com]

Thanks for the report.

I think this bug has already been fixed in git, but i'll check on Monday.

[julian-smith-artifex-com]

Have just confirmed, this is working in git, so i'll mark this issue as being fixed in next release.

[arun-mani-j]

Thanks!

[julian-smith-artifex-com]

Fixed in 1.24.8.