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53c653b099
i use PdfParser in local(refer to this case: https://github.com/infiniflow/ragflow/blob/main/rag/app/paper.py) like this: ``` import re import openpyxl from ragflow.api.db import ParserType from ragflow.rag.nlp import rag_tokenizer, tokenize, tokenize_table, add_positions, bullets_category, \ title_frequency, \ tokenize_chunks from ragflow.rag.utils import num_tokens_from_string from ragflow.deepdoc.parser import PdfParser, ExcelParser, DocxParser,PlainParser def logger(prog=None, msg=""): print(msg) class Pdf(PdfParser): def __init__(self): self.model_speciess = ParserType.MANUAL.value super().__init__() def __call__(self, filename, binary=None, from_page=0, to_page=100000, zoomin=3, callback=None): from timeit import default_timer as timer start = timer() callback(msg="OCR is running...") self.__images__( filename if not binary else binary, zoomin, from_page, to_page, callback ) callback(msg="OCR finished.") print("OCR:", timer() - start) self._layouts_rec(zoomin) callback(0.65, "Layout analysis finished.") print("layouts:", timer() - start) self._table_transformer_job(zoomin) callback(0.67, "Table analysis finished.") self._text_merge() tbls = self._extract_table_figure(True, zoomin, True, True) self._concat_downward() self._filter_forpages() callback(0.68, "Text merging finished") # clean mess for b in self.boxes: b["text"] = re.sub(r"([\t ]|\u3000){2,}", " ", b["text"].strip()) return [(b["text"], b.get("layout_no", ""), self.get_position(b, zoomin)) for i, b in enumerate(self.boxes)], tbls ``` show err like this: ``` File "xxxxx/third_party/ragflow/deepdoc/parser/pdf_parser.py", line 1039, in __images__ self.pdf.close() AttributeError: 'PdfReader' object has no attribute 'close' ``` i found ragflow source code use `pdfplumber.open`（https://github.com/infiniflow/ragflow/blob/main/deepdoc/parser/pdf_parser.py#L1007C28-L1007C43） and replace` self.pdf `with ` pdf2_read` （from pypdf import PdfReader as pdf2_read）in line 1024 (https://github.com/infiniflow/ragflow/blob/main/deepdoc/parser/pdf_parser.py#L1024) ``` self.pdf = pdf2_read ``` --- and I found that `pdfplumber` can be used in this way： ``` file_path="xxx.pdf" res = pdfplumber.open(file_path) res.close() ``` but `pypdf.PdfReader` source code do not has `close` func, source code use like this ``` with open(stream, "rb") as fh: stream = BytesIO(fh.read()) self._stream_opened = True ``` > https://github.com/py-pdf/pypdf/blob/main/pypdf/_reader.py#L156 so I moved the `self.pdf.close` function call and fixed this problem hoping to help the project😊