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Fix UnboundLocalError #2

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Fix UnboundLocalError #2

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18 changes: 11 additions & 7 deletions metapdf/metapdf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,8 @@
__author_email__ = "ali@alianari.com"


import os, re
import re
import os
from pyPdf import PdfFileReader


Expand All @@ -49,8 +50,8 @@ def __init__(self):
def read_metadata(self, stream):

"""This function reads a PDF file stream and returns its metadata.
:param file_name: The PDF file stream to read.
:type file_name: str
:param stream: The PDF file stream to read.
:type stream: file stream
:returns: dict -- The returned metadata as a dictionary of properties.

"""
Expand All @@ -59,12 +60,12 @@ def read_metadata(self, stream):
# frequent metadata density block
stream.seek(-self.metadata_offset, os.SEEK_END)
try:
properties = dict(('/' + p.group(1), p.group(2).decode('utf-8')) \
for p in self.metadata_regex.finditer(stream.read(self.metadata_offset)))
properties = dict(('/' + p.group(1), p.group(2).decode('utf-8'))
for p in self.metadata_regex.finditer(stream.read(self.metadata_offset)))
if '/Author' in properties:
return properties
except UnicodeDecodeError:
properties.clear()
pass

# Parse the xref table using pyPdf
properties = PdfFileReader(stream).documentInfo
Expand All @@ -74,4 +75,7 @@ def read_metadata(self, stream):
return {}

_metaPdfReader = _meta_pdf_reader()
def MetaPdfReader(): return _metaPdfReader


def MetaPdfReader():
return _metaPdfReader