diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index daf37ebd45..eed489f5d4 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -1454,6 +1454,7 @@ class Parser(multiprocessing.Process):
         self.quit = quit
         self.init = init
         multiprocessing.Process.__init__(self)
+        self.context = bb.utils._context.copy()
 
     def run(self):
         if self.init:
@@ -1488,6 +1489,7 @@ class Parser(multiprocessing.Process):
 
     def parse(self, filename, appends, caches_array):
         try:
+            bb.utils._context = self.context.copy()
             return True, bb.cache.Cache.parse(filename, appends, self.cfg, caches_array)
         except Exception as exc:
             tb = sys.exc_info()[2]
diff --git a/bitbake/lib/bb/methodpool.py b/bitbake/lib/bb/methodpool.py
index 8ad23c650b..bf2e9f5542 100644
--- a/bitbake/lib/bb/methodpool.py
+++ b/bitbake/lib/bb/methodpool.py
@@ -17,24 +17,7 @@
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
-
-"""
-    What is a method pool?
-
-    BitBake has a global method scope where .bb, .inc and .bbclass
-    files can install methods. These methods are parsed from strings.
-    To avoid recompiling and executing these string we introduce
-    a method pool to do this task.
-
-    This pool will be used to compile and execute the functions. It
-    will be smart enough to
-"""
-
 from bb.utils import better_compile, better_exec
-from bb       import error
-
-# A dict of function names we have seen
-_parsed_fns     = { }
 
 def insert_method(modulename, code, fn):
     """
@@ -44,28 +27,3 @@ def insert_method(modulename, code, fn):
     comp = better_compile(code, modulename, fn )
     better_exec(comp, None, code, fn)
 
-    # now some instrumentation
-    code = comp.co_names
-    for name in code:
-        if name in ['None', 'False']:
-            continue
-        elif name in _parsed_fns and not _parsed_fns[name] == modulename:
-            bb.fatal("The function %s defined in %s was already declared in %s. BitBake has a global python function namespace so shared functions should be declared in a common include file rather than being duplicated, or if the functions are different, please use different function names." % (name, modulename, _parsed_fns[name]))
-        else:
-            _parsed_fns[name] = modulename
-
-# A dict of modules the parser has finished with
-_parsed_methods = {}
-
-def parsed_module(modulename):
-    """
-    Has module been parsed?
-    """
-    return modulename in _parsed_methods
-
-def set_parsed_module(modulename):
-    """
-    Set module as parsed
-    """
-    _parsed_methods[modulename] = True
-
diff --git a/bitbake/lib/bb/parse/ast.py b/bitbake/lib/bb/parse/ast.py
index b2657f8044..713bef1cc2 100644
--- a/bitbake/lib/bb/parse/ast.py
+++ b/bitbake/lib/bb/parse/ast.py
@@ -148,9 +148,8 @@ class MethodNode(AstNode):
         text = '\n'.join(self.body)
         if self.func_name == "__anonymous":
             funcname = ("__anon_%s_%s" % (self.lineno, self.filename.translate(string.maketrans('/.+-', '____'))))
-            if not funcname in bb.methodpool._parsed_fns:
-                text = "def %s(d):\n" % (funcname) + text
-                bb.methodpool.insert_method(funcname, text, self.filename)
+            text = "def %s(d):\n" % (funcname) + text
+            bb.methodpool.insert_method(funcname, text, self.filename)
             anonfuncs = data.getVar('__BBANONFUNCS') or []
             anonfuncs.append(funcname)
             data.setVar('__BBANONFUNCS', anonfuncs)
@@ -171,8 +170,7 @@ class PythonMethodNode(AstNode):
         # 'this' file. This means we will not parse methods from
         # bb classes twice
         text = '\n'.join(self.body)
-        if not bb.methodpool.parsed_module(self.modulename):
-            bb.methodpool.insert_method(self.modulename, text, self.filename)
+        bb.methodpool.insert_method(self.modulename, text, self.filename)
         data.setVarFlag(self.function, "func", 1)
         data.setVarFlag(self.function, "python", 1)
         data.setVar(self.function, text)
diff --git a/bitbake/lib/bb/parse/parse_py/BBHandler.py b/bitbake/lib/bb/parse/parse_py/BBHandler.py
index 87a1530cb5..01f22d3b24 100644
--- a/bitbake/lib/bb/parse/parse_py/BBHandler.py
+++ b/bitbake/lib/bb/parse/parse_py/BBHandler.py
@@ -167,10 +167,6 @@ def handle(fn, d, include):
     if oldfile:
         d.setVar("FILE", oldfile)
 
-    # we have parsed the bb class now
-    if ext == ".bbclass" or ext == ".inc":
-        bb.methodpool.set_parsed_module(base_name)
-
     return d
 
 def feeder(lineno, s, fn, root, statements):