Remove dependency on the external meld3 package

CHANGES.rst

@@ -1,9 +1,12 @@
-4.0.5.dev0 (Next Release)
+4.1.0.dev0 (Next Release)
 -------------------------
 
 - Fixed a Python 3.8 compatibility issue caused by the removal of
   ``cgi.escape()``.  Patch by Mattia Procopio.
 
+- The ``meld3`` package is no longer a dependency.  A version of ``meld3``
+  is now included within the ``supervisor`` package itself.
+
 4.0.4 (2019-07-15)
 ------------------
 

docs/installing.rst

@@ -54,9 +54,6 @@ which is internet-connected:
 - setuptools (latest) from `https://pypi.org/pypi/setuptools/
   <https://pypi.org/pypi/setuptools/>`_.
 
-- meld3 (latest) from `https://pypi.org/pypi/meld3/
-  <https://pypi.org/pypi/meld3/>`_.
-
 Copy these files to removable media and put them on the target
 machine.  Install each onto the target machine as per its
 instructions.  This typically just means unpacking each file and

setup.cfg

@@ -1,15 +1,6 @@
 [easy_install]
 zip_ok = false
 
-[bdist_rpm]
-;If you are building your own RPM of Supervisor, it is recommended that you
-;also build your own RPM of meld3 (https://github.com/Supervisor/meld3) to
-;ensure you have the most recent version.  Your distribution may have a
-;"python-meld3" package that you might be able substitute here, but it may
-;not be compatible and may not have the most recent bug fixes.
-requires = 
-  meld3
-
 [aliases]
 dev = develop easy_install supervisor[testing]
 

setup.py

@@ -22,7 +22,7 @@
 elif (3, 0) < py_version < (3, 4):
     raise RuntimeError('On Python 3, Supervisor requires Python 3.4 or later')
 
-requires = ['meld3 >= 1.0.0']
+requires = []
 tests_require = []
 if py_version < (3, 3):
     tests_require.append('mock')

supervisor/compat.py

@@ -8,9 +8,20 @@
     long = long
     raw_input = raw_input
     unicode = unicode
+    unichr = unichr
     basestring = basestring
-    def as_bytes(s): return s if isinstance(s, str) else s.encode('utf-8')
-    def as_string(s): return s if isinstance(s, unicode) else s.decode('utf-8')
+
+    def as_bytes(s, encoding='utf-8'):
+        if isinstance(s, str):
+            return s
+        else:
+            return s.encode(encoding)
+
+    def as_string(s, encoding='utf-8'):
+        if isinstance(s, unicode):
+            return s
+        else:
+            return s.decode(encoding)
 
     def is_text_stream(stream):
         try:
@@ -25,15 +36,28 @@ def is_text_stream(stream):
         except ImportError:
             import io
             return isinstance(stream, io.TextIOWrapper)
+
 else: # pragma: no cover
     long = int
     basestring = str
     raw_input = input
+    unichr = chr
+
     class unicode(str):
         def __init__(self, string, encoding, errors):
             str.__init__(self, string)
-    def as_bytes(s): return s if isinstance(s,bytes) else s.encode('utf8')
-    def as_string(s): return s if isinstance(s,str) else s.decode('utf8')
+
+    def as_bytes(s, encoding='utf8'):
+        if isinstance(s, bytes):
+            return s
+        else:
+            return s.encode(encoding)
+
+    def as_string(s, encoding='utf8'):
+        if isinstance(s, str):
+            return s
+        else:
+            return s.decode(encoding)
 
     def is_text_stream(stream):
         import _io
@@ -106,7 +130,22 @@ def is_text_stream(stream):
 except ImportError: # pragma: no cover
     import _thread as thread
 
+try: # pragma: no cover
+    from types import StringTypes
+except ImportError: # pragma: no cover
+    StringTypes = (str,)
+
 try: # pragma: no cover
     from html import escape
 except ImportError: # pragma: no cover
     from cgi import escape
+
+try: # pragma: no cover
+    import html.entities as htmlentitydefs
+except ImportError: # pragma: no cover
+    import htmlentitydefs
+
+try: # pragma: no cover
+    from html.parser import HTMLParser
+except ImportError: # pragma: no cover
+    from HTMLParser import HTMLParser