drop usage of charade - no longer maintained

Author: mindw

README.rst

@@ -113,9 +113,8 @@ functionality:
 
 - ``genshi`` has a treewalker (but not builder); and
 
-- ``charade`` can be used as a fallback when character encoding cannot
-  be determined; ``chardet``, from which it was forked, can also be used
-  on Python 2.
+- ``chardet`` can be used as a fallback when character encoding cannot
+  be determined.
 
 - ``ordereddict`` can be used under Python 2.6
   (``collections.OrderedDict`` is used instead on later versions) to

debug-info.py

@@ -12,7 +12,7 @@
     "maxsize": sys.maxsize
 }
 
-search_modules = ["charade", "chardet", "datrie", "genshi", "html5lib", "lxml", "six"]
+search_modules = ["chardet", "datrie", "genshi", "html5lib", "lxml", "six"]
 found_modules = []
 
 for m in search_modules:

html5lib/inputstream.py

@@ -472,10 +472,7 @@ def detectEncoding(self, parseMeta=True, chardet=True):
         if encoding is None and chardet:
             confidence = "tentative"
             try:
-                try:
-                    from charade.universaldetector import UniversalDetector
-                except ImportError:
-                    from chardet.universaldetector import UniversalDetector
+                from chardet.universaldetector import UniversalDetector
                 buffers = []
                 detector = UniversalDetector()
                 while not detector.done:

html5lib/tests/test_encoding.py

@@ -62,12 +62,9 @@ def test_encoding():
             yield (runPreScanEncodingTest, test[b'data'], test[b'encoding'])
 
 try:
-    try:
-        import charade  # flake8: noqa
-    except ImportError:
-        import chardet  # flake8: noqa
+    import chardet  # flake8: noqa
 except ImportError:
-    print("charade/chardet not found, skipping chardet tests")
+    print("chardet not found, skipping chardet tests")
 else:
     def test_chardet():
         with open(os.path.join(test_dir, "encoding" , "chardet", "test_big5.txt"), "rb") as fp:

requirements-optional.txt

@@ -4,9 +4,9 @@
 # streams.
 genshi
 
-# charade can be used as a fallback in case we are unable to determine
+# chardet can be used as a fallback in case we are unable to determine
 # the encoding of a document.
-charade
+chardet>2.2
 
 # lxml is supported with its own treebuilder ("lxml") and otherwise
 # uses the standard ElementTree support

setup.py

@@ -70,13 +70,13 @@
 
           # Standard extras, will be installed when the extra is requested.
           "genshi": ["genshi"],
-          "charade": ["charade"],
+          "chardet": ["chardet>=2.2"],
 
           # The all extra combines a standard extra which will be used anytime
           # the all extra is requested, and it extends it with a conditional
           # extra that will be installed whenever the condition matches and the
           # all extra is requested.
-          "all": ["genshi", "charade"],
+          "all": ["genshi", "chardet>=2.2"],
           "all:platform.python_implementation == 'CPython'": ["datrie", "lxml"],
       },
       )