Address errors, improvements, formatting

- Removed unused code not portable due to buffer() use
- raw_input() does not exist in Python 3
- Fixed octal constant syntax for Python 3
- Fixed TypeError
- Replace if not exists: makedirs(path) with single call: using makedirs(path, exist_ok=True)
- Class inherits from object, can be safely removed from bases in python3: pylint's useless-object-inheritance (W0235) check

Signed-off-by: JoeLametta <JoeLametta@users.noreply.github.com>

whipper/extern/asyncsub.py

@@ -150,27 +150,3 @@ def recv_some(p, t=.1, e=1, tr=5, stderr=0):
         else:
             time.sleep(max((x - time.time()) / tr, 0))
     return ''.join(x.decode() for x in y).encode()
-
-
-def send_all(p, data):
-    while data:
-        sent = p.send(data)
-        if sent is None:
-            raise Exception(message)
-        data = buffer(data, sent)
-
-
-if __name__ == '__main__':
-    if sys.platform == 'win32':
-        shell, commands, tail = ('cmd', ('dir /w', 'echo HELLO WORLD'), '\r\n')
-    else:
-        shell, commands, tail = ('sh', ('ls', 'echo HELLO WORLD'), '\n')
-
-    a = Popen(shell, stdin=PIPE, stdout=PIPE)
-    print(recv_some(a))
-    for cmd in commands:
-        send_all(a, cmd + tail)
-        print(recv_some(a))
-    send_all(a, 'exit' + tail)
-    print(recv_some(a, e=0))
-    a.wait()

whipper/extern/freedb.py

@@ -17,16 +17,13 @@
 # USA
 
 
-import sys
-
-
 def digit_sum(i):
     """returns the sum of all digits for the given integer"""
 
     return sum(map(int, str(i)))
 
 
-class DiscID(object):
+class DiscID:
     def __init__(self, offsets, total_length, track_count, playable_length):
         """offsets is a list of track offsets, in CD frames
         total_length is the total length of the disc, in seconds

whipper/extern/task/task.py

@@ -68,7 +68,7 @@ def _getExceptionMessage(exception, frame=-1, filename=None):
         % locals()
 
 
-class LogStub(object):
+class LogStub:
     """
     I am a stub for a log interface.
     """
@@ -243,7 +243,7 @@ class Task(LogStub):
 
 
 # FIXME: should this become a real interface, like in zope ?
-class ITaskListener(object):
+class ITaskListener:
     """
     I am an interface for objects listening to tasks.
     """