Beautify

pypdf/_reader.py

@@ -113,7 +113,13 @@ def __init__(
  self.flattened_pages: Optional[List[PageObject]] = None
  #: Storage of parsed PDF objects.
  self.resolved_objects: Dict[Tuple[Any, Any], Optional[PdfObject]] = {}
+
  self.xref_index = 0
+ self.xref: Dict[int, Dict[Any, Any]] = {}
+ self.xref_free_entry: Dict[int, Dict[Any, Any]] = {}
+ self.xref_objStm: Dict[int, Tuple[Any, Any]] = {}
+ self.trailer = DictionaryObject()
+
  self._page_id2num: Optional[
  Dict[Any, Any]
  ] = None # map page indirect_reference number to Page Number
@@ -165,6 +171,12 @@ def __exit__(
  exc_tb: Optional[TracebackType],
  ) -> None:
  self.stream.close()
+ self.flattened_pages = []
+ self.resolved_objects = {}
+ self.trailer = {}
+ self.xref = {}
+ self.xref_free_entry = {}
+ self.xref_objStm = {}
 
  @property
  def root_object(self) -> DictionaryObject:
@@ -789,9 +801,9 @@ def _read_standard_xref_table(self, stream: StreamType) -> None:
  def _read_xref_tables_and_trailers(
  self, stream: StreamType, startxref: Optional[int], xref_issue_nr: int
  ) -> None:
- self.xref: Dict[int, Dict[Any, Any]] = {}
- self.xref_free_entry: Dict[int, Dict[Any, Any]] = {}
- self.xref_objStm: Dict[int, Tuple[Any, Any]] = {}
+ self.xref = {}
+ self.xref_free_entry = {}
+ self.xref_objStm = {}
  self.trailer = DictionaryObject()
  while startxref is not None:
  # load the xref table