Remove singledispatch import conditional

Lib/fontTools/misc/plistlib.py

@@ -364,12 +364,6 @@ def _string_or_data_element(raw_bytes, ctx):
         return _string_element(string, ctx)
 
 
-# if singledispatch is available, we use a generic '_make_element' function
-# and register overloaded implementations that are run based on the type of
-# the first argument
-
-if singledispatch is not None:
-
 @singledispatch
 def _make_element(value, ctx):
     raise TypeError("unsupported type: %s" % type(value))
@@ -386,31 +380,6 @@ if singledispatch is not None:
 _make_element.register(bytearray)(_data_element)
 _make_element.register(Data)(lambda v, ctx: _data_element(v.data, ctx))
 
-else:
-    # otherwise we use a long switch-like if statement
-
-    def _make_element(value, ctx):
-        if isinstance(value, unicode):
-            return _string_element(value, ctx)
-        elif isinstance(value, bool):
-            return _bool_element(value, ctx)
-        elif isinstance(value, Integral):
-            return _integer_element(value, ctx)
-        elif isinstance(value, float):
-            return _real_element(value, ctx)
-        elif isinstance(value, Mapping):
-            return _dict_element(value, ctx)
-        elif isinstance(value, (list, tuple)):
-            return _array_element(value, ctx)
-        elif isinstance(value, datetime):
-            return _date_element(value, ctx)
-        elif isinstance(value, bytes):
-            return _string_or_data_element(value, ctx)
-        elif isinstance(value, bytearray):
-            return _data_element(value, ctx)
-        elif isinstance(value, Data):
-            return _data_element(value.data, ctx)
-
 
 # Public functions to create element tree from plist-compatible python
 # data structures and viceversa, for use when (de)serializing GLIF xml.