diff --git a/lib/core/common.py b/lib/core/common.py
index 1d7580958..2a91c3510 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -4646,19 +4646,20 @@ def resetCookieJar(cookieJar):
 def decloakToTemp(filename):
     """
     Decloaks content of a given file to a temporary file with similar name and extension
+
+    >>> _ = decloakToTemp(os.path.join(paths.SQLMAP_SHELL_PATH, "stagers", "stager.asp_"))
+    >>> openFile(_, "rb", encoding=None).read().startswith(b'<%')
+    True
     """
 
     content = decloak(filename)
 
-    _ = getBytes(os.path.split(filename[:-1])[-1])
-
-    prefix, suffix = os.path.splitext(_)
-    prefix = prefix.split(os.extsep)[0]
-
+    parts = getBytes(os.path.split(filename[:-1])[-1]).split(b'.')
+    prefix, suffix = parts[0], b".%s" % parts[-1]
     handle, filename = tempfile.mkstemp(prefix=prefix, suffix=suffix)
     os.close(handle)
 
-    with open(filename, "w+b") as f:
+    with openFile(filename, "w+b", encoding=None) as f:
         f.write(content)
 
     return filename
diff --git a/lib/core/datatype.py b/lib/core/datatype.py
index 2285948c3..0aa4bd611 100644
--- a/lib/core/datatype.py
+++ b/lib/core/datatype.py
@@ -13,8 +13,7 @@ from thirdparty.odict import OrderedDict
 
 class AttribDict(dict):
     """
-    This class defines the sqlmap object, inheriting from Python data
-    type dictionary.
+    This class defines the dictionary with added capability to access members as attributes
 
     >>> foo = AttribDict()
     >>> foo.bar = 1
@@ -110,6 +109,19 @@ class InjectionDict(AttribDict):
 
 # Reference: https://www.kunxi.org/2014/05/lru-cache-in-python
 class LRUDict(object):
+    """
+    This class defines the LRU dictionary
+
+    >>> foo = LRUDict(capacity=2)
+    >>> foo["first"] = 1
+    >>> foo["second"] = 2
+    >>> foo["third"] = 3
+    >>> "first" in foo
+    False
+    >>> "third" in foo
+    True
+    """
+
     def __init__(self, capacity):
         self.capacity = capacity
         self.cache = OrderedDict()
@@ -144,6 +156,21 @@ class LRUDict(object):
 
 # Reference: https://code.activestate.com/recipes/576694/
 class OrderedSet(collections.MutableSet):
+    """
+    This class defines the set with ordered (as added) items
+
+    >>> foo = OrderedSet()
+    >>> foo.add(1)
+    >>> foo.add(2)
+    >>> foo.add(3)
+    >>> foo.pop()
+    3
+    >>> foo.pop()
+    2
+    >>> foo.pop()
+    1
+    """
+
     def __init__(self, iterable=None):
         self.end = end = []
         end += [None, end, end]         # sentinel node for doubly linked list
diff --git a/lib/core/decorators.py b/lib/core/decorators.py
index b98f4f1d3..7c2ea82a1 100644
--- a/lib/core/decorators.py
+++ b/lib/core/decorators.py
@@ -20,6 +20,16 @@ def cachedmethod(f, cache=LRUDict(capacity=MAX_CACHE_ITEMS)):
     """
     Method with a cached content
 
+    >>> __ = cachedmethod(lambda _: _)
+    >>> __(1)
+    1
+    >>> __ = cachedmethod(lambda *args, **kwargs: args[0])
+    >>> __(2)
+    2
+    >>> __ = cachedmethod(lambda *args, **kwargs: list(kwargs.values())[0])
+    >>> __(foobar=3)
+    3
+
     Reference: http://code.activestate.com/recipes/325205-cache-decorator-in-python-24/
     """
 
@@ -43,6 +53,13 @@ def cachedmethod(f, cache=LRUDict(capacity=MAX_CACHE_ITEMS)):
 def stackedmethod(f):
     """
     Method using pushValue/popValue functions (fallback function for stack realignment)
+
+    >>> threadData = getCurrentThreadData()
+    >>> original = len(threadData.valueStack)
+    >>> __ = stackedmethod(lambda _: threadData.valueStack.append(_))
+    >>> __(1)
+    >>> len(threadData.valueStack) == original
+    True
     """
 
     @functools.wraps(f)
diff --git a/lib/core/readlineng.py b/lib/core/readlineng.py
index 4d063325a..0726e5f15 100644
--- a/lib/core/readlineng.py
+++ b/lib/core/readlineng.py
@@ -35,7 +35,7 @@ if IS_WIN and _readline:
 # Thanks to Boyd Waters for this patch.
 uses_libedit = False
 
-if PLATFORM == 'mac' and _readline:
+if PLATFORM == "mac" and _readline:
     import commands
 
     (status, result) = commands.getstatusoutput("otool -L %s | grep libedit" % _readline.__file__)
diff --git a/lib/core/revision.py b/lib/core/revision.py
index 23d2d840b..5255cb1b6 100644
--- a/lib/core/revision.py
+++ b/lib/core/revision.py
@@ -12,6 +12,9 @@ import subprocess
 def getRevisionNumber():
     """
     Returns abbreviated commit hash number as retrieved with "git rev-parse --short HEAD"
+
+    >>> len(getRevisionNumber() or (' ' * 7)) == 7
+    True
     """
 
     retVal = None
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 743d18ab5..c4f2c0405 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty import six
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.3.5.28"
+VERSION = "1.3.5.29"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/lib/core/wordlist.py b/lib/core/wordlist.py
index 6265fbd34..a99e3df9c 100644
--- a/lib/core/wordlist.py
+++ b/lib/core/wordlist.py
@@ -16,10 +16,14 @@ from thirdparty import six
 class Wordlist(six.Iterator):
     """
     Iterator for looping over a large dictionaries
+
+    >>> from lib.core.option import paths
+    >>> isinstance(next(Wordlist(paths.SMALL_DICT)), six.string_types)
+    True
     """
 
     def __init__(self, filenames, proc_id=None, proc_count=None, custom=None):
-        self.filenames = filenames
+        self.filenames = [filenames] if isinstance(filenames, six.string_types) else filenames
         self.fp = None
         self.index = 0
         self.counter = -1