Remove some unused imports

src/audio.py

-import subprocess
 import shutil
-import json
 
 import mutagen
 

src/office.py

-import json
 import os
 import re
 import shutil
-import subprocess
 import tempfile
 import datetime
 import zipfile

src/parser_factory.py

@@ -4,7 +4,7 @@ import pkgutil
 
 from . import abstract
 
-from typing import Type, TypeVar
+from typing import TypeVar
 
 T = TypeVar('T', bound='abstract.AbstractParser')
 

src/pdf.py

@@ -5,9 +5,7 @@
 import os
 import logging
 import tempfile
-import shutil
 import io
-import tempfile
 
 import cairo
 import gi

tests/test_climat2.py

 import unittest
 import subprocess
-import os
 
 
 class TestHelp(unittest.TestCase):