diff --git a/pyload/config/parser.py b/pyload/config/parser.py
index 8dd56386ef..ee4b8c7203 100644
--- a/pyload/config/parser.py
+++ b/pyload/config/parser.py
@@ -100,7 +100,7 @@ def get(self):
     def get_default(self):
         return self.default
 
-    def set(self, value, store=True):
+    def set(self, value, store=False):
         norm_value = self._normalize_value(value)
         if self.allowed_values and norm_value not in self.allowed_values:
             raise InvalidValueError(value)
@@ -254,10 +254,9 @@ def __init__(
             pass
 
         else:
+            self.store()
             return
 
-        self.store()
-
     def _backup_fileconfig(self):
         path = self.path
         name, ext = os.path.splitext(path)
diff --git a/pyload/core/database/backend.py b/pyload/core/database/backend.py
index ad73da66be..bef2e3e4cb 100644
--- a/pyload/core/database/backend.py
+++ b/pyload/core/database/backend.py
@@ -84,6 +84,8 @@ def __init__(self, func, *args, **kwargs):
         self.result = None
         self.exception = False
 
+        self.pyload = self.args[0].pyload  # self.args[0] is DatabaseBackend
+
         # import inspect
         # self.frame = inspect.currentframe()
 
diff --git a/pyload/core/datatype/file.py b/pyload/core/datatype/file.py
index 23339525da..43d758f6d1 100644
--- a/pyload/core/datatype/file.py
+++ b/pyload/core/datatype/file.py
@@ -125,7 +125,8 @@ class File(BaseObject):
     __slots__ = ['_name', '_size', 'abort', 'added', 'error', 'fid',
                  'fileorder', 'filestatus', 'hash', 'lock', 'manager', 'media',
                  'owner', 'packageid', 'plugin', 'pluginclass', 'pluginname',
-                 'reconnected', 'status', 'statusname', 'url', 'wait_until']
+                 'pyload', 'reconnected', 'status', 'statusname', 'url',
+                 'wait_until']
 
     @staticmethod
     def from_info_data(m, info):
@@ -138,6 +139,8 @@ def from_info_data(m, info):
             file.hash = info.download.hash
             file.status = info.download.status
             file.error = info.download.error
+
+        file.init_plugin()
         return file
 
     def __init__(
@@ -177,8 +180,9 @@ def __init__(
 
     def get_size(self):
         """Get size of download."""
-        if self.plugin.dl.size is not None:
-            self.self._size(self.plugin.dl.size)
+        if self.plugin is not None and self.plugin.dl is not None \
+                and self.plugin.dl.size is not None:
+            self.set_size(self.plugin.dl.size)
         return self._size
 
     # NOTE: convert size to int
@@ -209,7 +213,7 @@ def set_name(self, name):
 
     def __repr__(self):
         return '<File {0}: {1}@{2}>'.format(
-            self.id, self.name, self.pluginname)
+            self.fid, self.name, self.pluginname)
 
     @lock
     def init_plugin(self):
@@ -299,7 +303,7 @@ def finish_if_done(self):
         """Set status to finish and release file if every thread is finished
         with it."""
         # TODO: this is wrong now, it should check if addons are using it
-        if self.id in self.pyload.tsm.processing_ids():
+        if self.fid in self.pyload.tsm.processing_ids():
             return False
 
         self.set_status('finished')
@@ -308,7 +312,7 @@ def finish_if_done(self):
         return True
 
     def check_if_processed(self):
-        self.manager.check_all_links_processed(self.id)
+        self.manager.check_all_links_processed(self.fid)
 
     @trycatch(0)
     def get_speed(self):
diff --git a/pyload/core/datatype/package.py b/pyload/core/datatype/package.py
index b27c162d57..24829dc104 100644
--- a/pyload/core/datatype/package.py
+++ b/pyload/core/datatype/package.py
@@ -80,8 +80,8 @@ class Package(BaseObject):
     """Represents a package object at runtime."""
     __slots__ = ['added', 'comment', 'comment', 'folder', 'manager', 'name',
                  'ownerid', 'packageorder', 'password', 'password', 'pid',
-                 'root', 'set_finished', 'shared', 'site', 'site', 'status',
-                 'tags', 'timestamp']
+                 'pyload', 'root', 'set_finished', 'shared', 'site', 'site',
+                 'status', 'tags', 'timestamp']
 
     @staticmethod
     def from_info_data(m, info):
diff --git a/pyload/core/manager/event.py b/pyload/core/manager/event.py
index f0e30eb267..85d2eff279 100644
--- a/pyload/core/manager/event.py
+++ b/pyload/core/manager/event.py
@@ -67,6 +67,7 @@ def fire(self, event, *args, **kwargs):
         """Dispatches event with args."""
         # dispatch the meta event
         if event != 'event':
+            self.pyload.log.debug(event)
             self.fire('event', *(event,) + args, **kwargs)
 
         if event in self.events:
diff --git a/pyload/core/manager/file.py b/pyload/core/manager/file.py
index c2756eaef2..f5c874e46c 100644
--- a/pyload/core/manager/file.py
+++ b/pyload/core/manager/file.py
@@ -102,7 +102,7 @@ def get_collector(self):
     @invalidate
     def add_links(self, data, pid, owner):
         """
-        Add links, data = (url, plugin) tuple. Internal method should use API.
+        Add links, data = [(url, plugin)] list of tuples. Internal method should use API.
         """
         self.db.add_links(data, pid, owner)
         self.pyload.evm.fire('package:updated', pid)
diff --git a/pyload/core/network/hoster.py b/pyload/core/network/hoster.py
index 0dc048aec6..818a275ad5 100644
--- a/pyload/core/network/hoster.py
+++ b/pyload/core/network/hoster.py
@@ -61,6 +61,7 @@ def get_info(urls):
     def __init__(self, file):
         # TODO: file.owner, but it's not correct yet
         super(Hoster, self).__init__(file.manager.pyload)
+        self._ = self.pyload._
 
         self.want_reconnect = False
         # enables simultaneous processing of multiple downloads
@@ -94,7 +95,7 @@ def __init__(self, file):
         self.dl = None
 
         # associated file instance, see `File`
-        self.filename = file
+        self.file = file
         self.thread = None  # holds thread in future
 
         # location where the last call to download was saved
diff --git a/pyload/core/network/loader.py b/pyload/core/network/loader.py
index 4b306ef67e..37e8e81faa 100644
--- a/pyload/core/network/loader.py
+++ b/pyload/core/network/loader.py
@@ -146,7 +146,7 @@ def parse(self, folder):
 
     def parse_attributes(self, filename, name, folder=''):
         """Parse attribute dict from plugin."""
-        with io.open(filename, mode='rb') as fp:
+        with io.open(filename, mode='r') as fp:
             content = fp.read()
 
         attrs = BaseAttributes()
diff --git a/pyload/core/thread/download.py b/pyload/core/thread/download.py
index 315c9f9ab2..af81ceeea8 100644
--- a/pyload/core/thread/download.py
+++ b/pyload/core/thread/download.py
@@ -34,7 +34,7 @@ def __init__(self, manager):
 
     @property
     def running(self):
-        return self.__running.is_set()
+        return self.__running
 
     def _handle_abort(self, file):
         self.pyload.log.info(
@@ -190,7 +190,9 @@ def _run(self, file):
     def _finalize(self, file):
         self.pyload.files.save()
         file.check_if_processed()
-        sys.exc_clear()
+        if sys.version_info[0] < 3:
+            # not available in python 3
+            sys.exc_clear()
         # manager could still be waiting for it
         self.__running.set()
         # only done when job was not put back
diff --git a/pyload/core/thread/plugin.py b/pyload/core/thread/plugin.py
index 4da354b6ec..1eb9408ccf 100644
--- a/pyload/core/thread/plugin.py
+++ b/pyload/core/thread/plugin.py
@@ -79,7 +79,7 @@ def _gen_reports(self, file):
 
     def _zip(self, filepath, reports, dumpdir):
         filename = os.path.basename(filepath)
-        with zipfile.ZipFile(filepath, 'wb') as zip:
+        with zipfile.ZipFile(filepath, 'w') as zip:
             for fname in os.listdir(dumpdir):
                 try:
                     arcname = os.path.join(filename, fname)
diff --git a/pyload/requests/base/request.py b/pyload/requests/base/request.py
index 1c1bf7eff6..db879cc63a 100644
--- a/pyload/requests/base/request.py
+++ b/pyload/requests/base/request.py
@@ -75,7 +75,7 @@ def __init__(self, config, context=None, options=None, logger=None):
         self.config = config
 
         # Create a new context if not given
-        self.context = self.CONTEXT_CLASS if context is None else context
+        self.context = self.CONTEXT_CLASS() if context is None else context  #instantiate CONTEXT_CLASS
 
         # Store options in dict
         self.options = {} if options is None else options
@@ -85,7 +85,7 @@ def __init__(self, config, context=None, options=None, logger=None):
         # Last response code
         self.code = 0
         self.flags = 0
-        self.__abort = False
+        self._abort = False
         self.init_context()
 
         # TODO: content encoding? Could be handled globally
@@ -131,7 +131,7 @@ def remove_auth(self):
         self.unset_option('auth')
 
     def abort(self):
-        self.__abort = True
+        self._abort = True
 
     def reset(self):
         """Resets the context to initial state."""
diff --git a/pyload/requests/cookie.py b/pyload/requests/cookie.py
index 160f1247ec..0116e93665 100644
--- a/pyload/requests/cookie.py
+++ b/pyload/requests/cookie.py
@@ -21,7 +21,8 @@ class CookieJar(SimpleCookie):
 
     def set(self, domain, name, value, path='/', expires=None, secure=False,
             tailmatch=False):
-        self.__dict__[name] = to_str(value)
+        self.__dict__[name] = dict()
+        self.__dict__[name]['id'] = to_str(value)
         self.__dict__[name]['domain'] = to_str(domain)
         self.__dict__[name]['tailmatch'] = 'TRUE' if tailmatch else 'FALSE'
         self.__dict__[name]['path'] = to_str(path)
diff --git a/pyload/utils/debug.py b/pyload/utils/debug.py
index d37d69a300..68c1507f29 100644
--- a/pyload/utils/debug.py
+++ b/pyload/utils/debug.py
@@ -61,10 +61,10 @@ def print_dump(obj, file=None):
     print(text)
 
 
-def _format_framestack(frame=None, limit=None):
+def _format_framestack(limit=None):
     limit = None if not limit else abs(limit)
     stack = []
-    _, value, tb = sys.exc_info(frame)
+    _, value, tb = sys.exc_info()
     try:
         while tb:
             stack.append(tb.tb_frame)
@@ -91,7 +91,7 @@ def _format_framestack(frame=None, limit=None):
 
 
 def format_framestack(frame=None, limit=None):
-    framestack = _format_framestack(frame, limit)
+    framestack = _format_framestack(limit)
     stack_desc = []
     for frame_name, frame_dump in framestack:
         dump = os.linesep.join(
diff --git a/pyload/utils/fs.py b/pyload/utils/fs.py
index 32e53efe5c..80bef6e618 100644
--- a/pyload/utils/fs.py
+++ b/pyload/utils/fs.py
@@ -321,10 +321,6 @@ def cleanpy(dirname, recursive=True):
 
 
 def remove(path, trash=False, ignore_errors=False):
-    trash = True  #: test
-    print('TRASH')
-    print(path)
-
     if not os.path.exists(path):
         if ignore_errors:
             return
diff --git a/requirements/install.txt b/requirements/install.txt
index 8228ac373c..33ce4eb027 100644
--- a/requirements/install.txt
+++ b/requirements/install.txt
@@ -12,3 +12,4 @@ semver
 setuptools>=0.6.39
 tld
 validators
+enum34;python_version<="2.7"
\ No newline at end of file