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"""
All errors/exceptions pypdf raises and all of the warnings it uses.
Please note that broken PDF files might cause other Exceptions.
"""
class DeprecationError(Exception):
"""Raised when a deprecated feature is used."""
class DependencyError(Exception):
"""
Raised when a required dependency (a library or module that PyPDF depends on)
is not available or cannot be imported.
"""
class PyPdfError(Exception):
"""Base class for all exceptions raised by PyPDF."""
class PdfReadError(PyPdfError):
"""Raised when there is an issue reading a PDF file."""
class PageSizeNotDefinedError(PyPdfError):
"""Raised when the page size of a PDF document is not defined."""
class PdfReadWarning(UserWarning):
"""Issued when there is a potential issue reading a PDF file, but it can still be read."""
class PdfStreamError(PdfReadError):
"""Raised when there is an issue reading the stream of data in a PDF file."""
class ParseError(PyPdfError):
"""
Raised when there is an issue parsing (analyzing and understanding the
structure and meaning of) a PDF file.
"""
class FileNotDecryptedError(PdfReadError):
"""
Raised when a PDF file that has been encrypted
(meaning it requires a password to be accessed) has not been successfully
decrypted.
"""
class WrongPasswordError(FileNotDecryptedError):
"""Raised when the wrong password is used to try to decrypt an encrypted PDF file."""
class EmptyFileError(PdfReadError):
"""Raised when a PDF file is empty or has no content."""
STREAM_TRUNCATED_PREMATURELY = "Stream has ended unexpectedly"
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