We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Changed int conversion in ImagePalette to ord for Python 2
Error reported in #1592


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `PIL/ImagePalette.py`
Content:
```
1 #
2 # The Python Imaging Library.
3 # $Id$
4 #
5 # image palette object
6 #
7 # History:
8 # 1996-03-11 fl   Rewritten.
9 # 1997-01-03 fl   Up and running.
10 # 1997-08-23 fl   Added load hack
11 # 2001-04-16 fl   Fixed randint shadow bug in random()
12 #
13 # Copyright (c) 1997-2001 by Secret Labs AB
14 # Copyright (c) 1996-1997 by Fredrik Lundh
15 #
16 # See the README file for information on usage and redistribution.
17 #
18 
19 import array
20 from PIL import ImageColor
21 
22 
23 class ImagePalette(object):
24     """
25     Color palette for palette mapped images
26 
27     :param mode: The mode to use for the Palette. See:
28         :ref:`concept-modes`. Defaults to "RGB"
29     :param palette: An optional palette. If given, it must be a bytearray,
30         an array or a list of ints between 0-255 and of length ``size``
31         times the number of colors in ``mode``. The list must be aligned
32         by channel (All R values must be contiguous in the list before G
33         and B values.) Defaults to 0 through 255 per channel.
34     :param size: An optional palette size. If given, it cannot be equal to
35         or greater than 256. Defaults to 0.
36     """
37 
38     def __init__(self, mode="RGB", palette=None, size=0):
39         self.mode = mode
40         self.rawmode = None  # if set, palette contains raw data
41         self.palette = palette or list(range(256))*len(self.mode)
42         self.colors = {}
43         self.dirty = None
44         if ((size == 0 and len(self.mode)*256 != len(self.palette)) or
45                 (size != 0 and size != len(self.palette))):
46             raise ValueError("wrong palette size")
47 
48     def copy(self):
49         new = ImagePalette()
50 
51         new.mode = self.mode
52         new.rawmode = self.rawmode
53         if self.palette is not None:
54             new.palette = self.palette[:]
55         new.colors = self.colors.copy()
56         new.dirty = self.dirty
57 
58         return new
59 
60     def getdata(self):
61         """
62         Get palette contents in format suitable # for the low-level
63         ``im.putpalette`` primitive.
64 
65         .. warning:: This method is experimental.
66         """
67         if self.rawmode:
68             return self.rawmode, self.palette
69         return self.mode + ";L", self.tobytes()
70 
71     def tobytes(self):
72         """Convert palette to bytes.
73 
74         .. warning:: This method is experimental.
75         """
76         if self.rawmode:
77             raise ValueError("palette contains raw palette data")
78         if isinstance(self.palette, bytes):
79             return self.palette
80         arr = array.array("B", self.palette)
81         if hasattr(arr, 'tobytes'):
82             return arr.tobytes()
83         return arr.tostring()
84 
85     # Declare tostring as an alias for tobytes
86     tostring = tobytes
87 
88     def getcolor(self, color):
89         """Given an rgb tuple, allocate palette entry.
90 
91         .. warning:: This method is experimental.
92         """
93         if self.rawmode:
94             raise ValueError("palette contains raw palette data")
95         if isinstance(color, tuple):
96             try:
97                 return self.colors[color]
98             except KeyError:
99                 # allocate new color slot
100                 if isinstance(self.palette, bytes):
101                     self.palette = [int(x) for x in self.palette]
102                 index = len(self.colors)
103                 if index >= 256:
104                     raise ValueError("cannot allocate more than 256 colors")
105                 self.colors[color] = index
106                 self.palette[index] = color[0]
107                 self.palette[index+256] = color[1]
108                 self.palette[index+512] = color[2]
109                 self.dirty = 1
110                 return index
111         else:
112             raise ValueError("unknown color specifier: %r" % color)
113 
114     def save(self, fp):
115         """Save palette to text file.
116 
117         .. warning:: This method is experimental.
118         """
119         if self.rawmode:
120             raise ValueError("palette contains raw palette data")
121         if isinstance(fp, str):
122             fp = open(fp, "w")
123         fp.write("# Palette\n")
124         fp.write("# Mode: %s\n" % self.mode)
125         for i in range(256):
126             fp.write("%d" % i)
127             for j in range(i*len(self.mode), (i+1)*len(self.mode)):
128                 try:
129                     fp.write(" %d" % self.palette[j])
130                 except IndexError:
131                     fp.write(" 0")
132             fp.write("\n")
133         fp.close()
134 
135 
136 # --------------------------------------------------------------------
137 # Internal
138 
139 def raw(rawmode, data):
140     palette = ImagePalette()
141     palette.rawmode = rawmode
142     palette.palette = data
143     palette.dirty = 1
144     return palette
145 
146 
147 # --------------------------------------------------------------------
148 # Factories
149 
150 def make_linear_lut(black, white):
151     lut = []
152     if black == 0:
153         for i in range(256):
154             lut.append(white*i//255)
155     else:
156         raise NotImplementedError  # FIXME
157     return lut
158 
159 
160 def make_gamma_lut(exp):
161     lut = []
162     for i in range(256):
163         lut.append(int(((i / 255.0) ** exp) * 255.0 + 0.5))
164     return lut
165 
166 
167 def negative(mode="RGB"):
168     palette = list(range(256))
169     palette.reverse()
170     return ImagePalette(mode, palette * len(mode))
171 
172 
173 def random(mode="RGB"):
174     from random import randint
175     palette = []
176     for i in range(256*len(mode)):
177         palette.append(randint(0, 255))
178     return ImagePalette(mode, palette)
179 
180 
181 def sepia(white="#fff0c0"):
182     r, g, b = ImageColor.getrgb(white)
183     r = make_linear_lut(0, r)
184     g = make_linear_lut(0, g)
185     b = make_linear_lut(0, b)
186     return ImagePalette("RGB", r + g + b)
187 
188 
189 def wedge(mode="RGB"):
190     return ImagePalette(mode, list(range(256)) * len(mode))
191 
192 
193 def load(filename):
194 
195     # FIXME: supports GIMP gradients only
196 
197     fp = open(filename, "rb")
198 
199     lut = None
200 
201     if not lut:
202         try:
203             from PIL import GimpPaletteFile
204             fp.seek(0)
205             p = GimpPaletteFile.GimpPaletteFile(fp)
206             lut = p.getpalette()
207         except (SyntaxError, ValueError):
208             # import traceback
209             # traceback.print_exc()
210             pass
211 
212     if not lut:
213         try:
214             from PIL import GimpGradientFile
215             fp.seek(0)
216             p = GimpGradientFile.GimpGradientFile(fp)
217             lut = p.getpalette()
218         except (SyntaxError, ValueError):
219             # import traceback
220             # traceback.print_exc()
221             pass
222 
223     if not lut:
224         try:
225             from PIL import PaletteFile
226             fp.seek(0)
227             p = PaletteFile.PaletteFile(fp)
228             lut = p.getpalette()
229         except (SyntaxError, ValueError):
230             # import traceback
231             # traceback.print_exc()
232             pass
233 
234     if not lut:
235         raise IOError("cannot load palette")
236 
237     return lut  # data, rawmode
238
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/PIL/ImagePalette.py b/PIL/ImagePalette.py
--- a/PIL/ImagePalette.py
+++ b/PIL/ImagePalette.py
@@ -38,7 +38,7 @@
     def __init__(self, mode="RGB", palette=None, size=0):
         self.mode = mode
         self.rawmode = None  # if set, palette contains raw data
-        self.palette = palette or list(range(256))*len(self.mode)
+        self.palette = palette or bytearray(range(256))*len(self.mode)
         self.colors = {}
         self.dirty = None
         if ((size == 0 and len(self.mode)*256 != len(self.palette)) or
@@ -98,7 +98,7 @@
             except KeyError:
                 # allocate new color slot
                 if isinstance(self.palette, bytes):
-                    self.palette = [int(x) for x in self.palette]
+                    self.palette = bytearray(self.palette)
                 index = len(self.colors)
                 if index >= 256:
                     raise ValueError("cannot allocate more than 256 colors")

{"golden_diff": "diff --git a/PIL/ImagePalette.py b/PIL/ImagePalette.py\n--- a/PIL/ImagePalette.py\n+++ b/PIL/ImagePalette.py\n@@ -38,7 +38,7 @@\n     def __init__(self, mode=\"RGB\", palette=None, size=0):\n         self.mode = mode\n         self.rawmode = None  # if set, palette contains raw data\n-        self.palette = palette or list(range(256))*len(self.mode)\n+        self.palette = palette or bytearray(range(256))*len(self.mode)\n         self.colors = {}\n         self.dirty = None\n         if ((size == 0 and len(self.mode)*256 != len(self.palette)) or\n@@ -98,7 +98,7 @@\n             except KeyError:\n                 # allocate new color slot\n                 if isinstance(self.palette, bytes):\n-                    self.palette = [int(x) for x in self.palette]\n+                    self.palette = bytearray(self.palette)\n                 index = len(self.colors)\n                 if index >= 256:\n                     raise ValueError(\"cannot allocate more than 256 colors\")\n", "issue": "Changed int conversion in ImagePalette to ord for Python 2\nError reported in #1592\n\n", "before_files": [{"content": "#\n# The Python Imaging Library.\n# $Id$\n#\n# image palette object\n#\n# History:\n# 1996-03-11 fl   Rewritten.\n# 1997-01-03 fl   Up and running.\n# 1997-08-23 fl   Added load hack\n# 2001-04-16 fl   Fixed randint shadow bug in random()\n#\n# Copyright (c) 1997-2001 by Secret Labs AB\n# Copyright (c) 1996-1997 by Fredrik Lundh\n#\n# See the README file for information on usage and redistribution.\n#\n\nimport array\nfrom PIL import ImageColor\n\n\nclass ImagePalette(object):\n    \"\"\"\n    Color palette for palette mapped images\n\n    :param mode: The mode to use for the Palette. See:\n        :ref:`concept-modes`. Defaults to \"RGB\"\n    :param palette: An optional palette. If given, it must be a bytearray,\n        an array or a list of ints between 0-255 and of length ``size``\n        times the number of colors in ``mode``. The list must be aligned\n        by channel (All R values must be contiguous in the list before G\n        and B values.) Defaults to 0 through 255 per channel.\n    :param size: An optional palette size. If given, it cannot be equal to\n        or greater than 256. Defaults to 0.\n    \"\"\"\n\n    def __init__(self, mode=\"RGB\", palette=None, size=0):\n        self.mode = mode\n        self.rawmode = None  # if set, palette contains raw data\n        self.palette = palette or list(range(256))*len(self.mode)\n        self.colors = {}\n        self.dirty = None\n        if ((size == 0 and len(self.mode)*256 != len(self.palette)) or\n                (size != 0 and size != len(self.palette))):\n            raise ValueError(\"wrong palette size\")\n\n    def copy(self):\n        new = ImagePalette()\n\n        new.mode = self.mode\n        new.rawmode = self.rawmode\n        if self.palette is not None:\n            new.palette = self.palette[:]\n        new.colors = self.colors.copy()\n        new.dirty = self.dirty\n\n        return new\n\n    def getdata(self):\n        \"\"\"\n        Get palette contents in format suitable # for the low-level\n        ``im.putpalette`` primitive.\n\n        .. warning:: This method is experimental.\n        \"\"\"\n        if self.rawmode:\n            return self.rawmode, self.palette\n        return self.mode + \";L\", self.tobytes()\n\n    def tobytes(self):\n        \"\"\"Convert palette to bytes.\n\n        .. warning:: This method is experimental.\n        \"\"\"\n        if self.rawmode:\n            raise ValueError(\"palette contains raw palette data\")\n        if isinstance(self.palette, bytes):\n            return self.palette\n        arr = array.array(\"B\", self.palette)\n        if hasattr(arr, 'tobytes'):\n            return arr.tobytes()\n        return arr.tostring()\n\n    # Declare tostring as an alias for tobytes\n    tostring = tobytes\n\n    def getcolor(self, color):\n        \"\"\"Given an rgb tuple, allocate palette entry.\n\n        .. warning:: This method is experimental.\n        \"\"\"\n        if self.rawmode:\n            raise ValueError(\"palette contains raw palette data\")\n        if isinstance(color, tuple):\n            try:\n                return self.colors[color]\n            except KeyError:\n                # allocate new color slot\n                if isinstance(self.palette, bytes):\n                    self.palette = [int(x) for x in self.palette]\n                index = len(self.colors)\n                if index >= 256:\n                    raise ValueError(\"cannot allocate more than 256 colors\")\n                self.colors[color] = index\n                self.palette[index] = color[0]\n                self.palette[index+256] = color[1]\n                self.palette[index+512] = color[2]\n                self.dirty = 1\n                return index\n        else:\n            raise ValueError(\"unknown color specifier: %r\" % color)\n\n    def save(self, fp):\n        \"\"\"Save palette to text file.\n\n        .. warning:: This method is experimental.\n        \"\"\"\n        if self.rawmode:\n            raise ValueError(\"palette contains raw palette data\")\n        if isinstance(fp, str):\n            fp = open(fp, \"w\")\n        fp.write(\"# Palette\\n\")\n        fp.write(\"# Mode: %s\\n\" % self.mode)\n        for i in range(256):\n            fp.write(\"%d\" % i)\n            for j in range(i*len(self.mode), (i+1)*len(self.mode)):\n                try:\n                    fp.write(\" %d\" % self.palette[j])\n                except IndexError:\n                    fp.write(\" 0\")\n            fp.write(\"\\n\")\n        fp.close()\n\n\n# --------------------------------------------------------------------\n# Internal\n\ndef raw(rawmode, data):\n    palette = ImagePalette()\n    palette.rawmode = rawmode\n    palette.palette = data\n    palette.dirty = 1\n    return palette\n\n\n# --------------------------------------------------------------------\n# Factories\n\ndef make_linear_lut(black, white):\n    lut = []\n    if black == 0:\n        for i in range(256):\n            lut.append(white*i//255)\n    else:\n        raise NotImplementedError  # FIXME\n    return lut\n\n\ndef make_gamma_lut(exp):\n    lut = []\n    for i in range(256):\n        lut.append(int(((i / 255.0) ** exp) * 255.0 + 0.5))\n    return lut\n\n\ndef negative(mode=\"RGB\"):\n    palette = list(range(256))\n    palette.reverse()\n    return ImagePalette(mode, palette * len(mode))\n\n\ndef random(mode=\"RGB\"):\n    from random import randint\n    palette = []\n    for i in range(256*len(mode)):\n        palette.append(randint(0, 255))\n    return ImagePalette(mode, palette)\n\n\ndef sepia(white=\"#fff0c0\"):\n    r, g, b = ImageColor.getrgb(white)\n    r = make_linear_lut(0, r)\n    g = make_linear_lut(0, g)\n    b = make_linear_lut(0, b)\n    return ImagePalette(\"RGB\", r + g + b)\n\n\ndef wedge(mode=\"RGB\"):\n    return ImagePalette(mode, list(range(256)) * len(mode))\n\n\ndef load(filename):\n\n    # FIXME: supports GIMP gradients only\n\n    fp = open(filename, \"rb\")\n\n    lut = None\n\n    if not lut:\n        try:\n            from PIL import GimpPaletteFile\n            fp.seek(0)\n            p = GimpPaletteFile.GimpPaletteFile(fp)\n            lut = p.getpalette()\n        except (SyntaxError, ValueError):\n            # import traceback\n            # traceback.print_exc()\n            pass\n\n    if not lut:\n        try:\n            from PIL import GimpGradientFile\n            fp.seek(0)\n            p = GimpGradientFile.GimpGradientFile(fp)\n            lut = p.getpalette()\n        except (SyntaxError, ValueError):\n            # import traceback\n            # traceback.print_exc()\n            pass\n\n    if not lut:\n        try:\n            from PIL import PaletteFile\n            fp.seek(0)\n            p = PaletteFile.PaletteFile(fp)\n            lut = p.getpalette()\n        except (SyntaxError, ValueError):\n            # import traceback\n            # traceback.print_exc()\n            pass\n\n    if not lut:\n        raise IOError(\"cannot load palette\")\n\n    return lut  # data, rawmode\n", "path": "PIL/ImagePalette.py"}], "after_files": [{"content": "#\n# The Python Imaging Library.\n# $Id$\n#\n# image palette object\n#\n# History:\n# 1996-03-11 fl   Rewritten.\n# 1997-01-03 fl   Up and running.\n# 1997-08-23 fl   Added load hack\n# 2001-04-16 fl   Fixed randint shadow bug in random()\n#\n# Copyright (c) 1997-2001 by Secret Labs AB\n# Copyright (c) 1996-1997 by Fredrik Lundh\n#\n# See the README file for information on usage and redistribution.\n#\n\nimport array\nfrom PIL import ImageColor\n\n\nclass ImagePalette(object):\n    \"\"\"\n    Color palette for palette mapped images\n\n    :param mode: The mode to use for the Palette. See:\n        :ref:`concept-modes`. Defaults to \"RGB\"\n    :param palette: An optional palette. If given, it must be a bytearray,\n        an array or a list of ints between 0-255 and of length ``size``\n        times the number of colors in ``mode``. The list must be aligned\n        by channel (All R values must be contiguous in the list before G\n        and B values.) Defaults to 0 through 255 per channel.\n    :param size: An optional palette size. If given, it cannot be equal to\n        or greater than 256. Defaults to 0.\n    \"\"\"\n\n    def __init__(self, mode=\"RGB\", palette=None, size=0):\n        self.mode = mode\n        self.rawmode = None  # if set, palette contains raw data\n        self.palette = palette or bytearray(range(256))*len(self.mode)\n        self.colors = {}\n        self.dirty = None\n        if ((size == 0 and len(self.mode)*256 != len(self.palette)) or\n                (size != 0 and size != len(self.palette))):\n            raise ValueError(\"wrong palette size\")\n\n    def copy(self):\n        new = ImagePalette()\n\n        new.mode = self.mode\n        new.rawmode = self.rawmode\n        if self.palette is not None:\n            new.palette = self.palette[:]\n        new.colors = self.colors.copy()\n        new.dirty = self.dirty\n\n        return new\n\n    def getdata(self):\n        \"\"\"\n        Get palette contents in format suitable # for the low-level\n        ``im.putpalette`` primitive.\n\n        .. warning:: This method is experimental.\n        \"\"\"\n        if self.rawmode:\n            return self.rawmode, self.palette\n        return self.mode + \";L\", self.tobytes()\n\n    def tobytes(self):\n        \"\"\"Convert palette to bytes.\n\n        .. warning:: This method is experimental.\n        \"\"\"\n        if self.rawmode:\n            raise ValueError(\"palette contains raw palette data\")\n        if isinstance(self.palette, bytes):\n            return self.palette\n        arr = array.array(\"B\", self.palette)\n        if hasattr(arr, 'tobytes'):\n            return arr.tobytes()\n        return arr.tostring()\n\n    # Declare tostring as an alias for tobytes\n    tostring = tobytes\n\n    def getcolor(self, color):\n        \"\"\"Given an rgb tuple, allocate palette entry.\n\n        .. warning:: This method is experimental.\n        \"\"\"\n        if self.rawmode:\n            raise ValueError(\"palette contains raw palette data\")\n        if isinstance(color, tuple):\n            try:\n                return self.colors[color]\n            except KeyError:\n                # allocate new color slot\n                if isinstance(self.palette, bytes):\n                    self.palette = bytearray(self.palette)\n                index = len(self.colors)\n                if index >= 256:\n                    raise ValueError(\"cannot allocate more than 256 colors\")\n                self.colors[color] = index\n                self.palette[index] = color[0]\n                self.palette[index+256] = color[1]\n                self.palette[index+512] = color[2]\n                self.dirty = 1\n                return index\n        else:\n            raise ValueError(\"unknown color specifier: %r\" % color)\n\n    def save(self, fp):\n        \"\"\"Save palette to text file.\n\n        .. warning:: This method is experimental.\n        \"\"\"\n        if self.rawmode:\n            raise ValueError(\"palette contains raw palette data\")\n        if isinstance(fp, str):\n            fp = open(fp, \"w\")\n        fp.write(\"# Palette\\n\")\n        fp.write(\"# Mode: %s\\n\" % self.mode)\n        for i in range(256):\n            fp.write(\"%d\" % i)\n            for j in range(i*len(self.mode), (i+1)*len(self.mode)):\n                try:\n                    fp.write(\" %d\" % self.palette[j])\n                except IndexError:\n                    fp.write(\" 0\")\n            fp.write(\"\\n\")\n        fp.close()\n\n\n# --------------------------------------------------------------------\n# Internal\n\ndef raw(rawmode, data):\n    palette = ImagePalette()\n    palette.rawmode = rawmode\n    palette.palette = data\n    palette.dirty = 1\n    return palette\n\n\n# --------------------------------------------------------------------\n# Factories\n\ndef make_linear_lut(black, white):\n    lut = []\n    if black == 0:\n        for i in range(256):\n            lut.append(white*i//255)\n    else:\n        raise NotImplementedError  # FIXME\n    return lut\n\n\ndef make_gamma_lut(exp):\n    lut = []\n    for i in range(256):\n        lut.append(int(((i / 255.0) ** exp) * 255.0 + 0.5))\n    return lut\n\n\ndef negative(mode=\"RGB\"):\n    palette = list(range(256))\n    palette.reverse()\n    return ImagePalette(mode, palette * len(mode))\n\n\ndef random(mode=\"RGB\"):\n    from random import randint\n    palette = []\n    for i in range(256*len(mode)):\n        palette.append(randint(0, 255))\n    return ImagePalette(mode, palette)\n\n\ndef sepia(white=\"#fff0c0\"):\n    r, g, b = ImageColor.getrgb(white)\n    r = make_linear_lut(0, r)\n    g = make_linear_lut(0, g)\n    b = make_linear_lut(0, b)\n    return ImagePalette(\"RGB\", r + g + b)\n\n\ndef wedge(mode=\"RGB\"):\n    return ImagePalette(mode, list(range(256)) * len(mode))\n\n\ndef load(filename):\n\n    # FIXME: supports GIMP gradients only\n\n    fp = open(filename, \"rb\")\n\n    lut = None\n\n    if not lut:\n        try:\n            from PIL import GimpPaletteFile\n            fp.seek(0)\n            p = GimpPaletteFile.GimpPaletteFile(fp)\n            lut = p.getpalette()\n        except (SyntaxError, ValueError):\n            # import traceback\n            # traceback.print_exc()\n            pass\n\n    if not lut:\n        try:\n            from PIL import GimpGradientFile\n            fp.seek(0)\n            p = GimpGradientFile.GimpGradientFile(fp)\n            lut = p.getpalette()\n        except (SyntaxError, ValueError):\n            # import traceback\n            # traceback.print_exc()\n            pass\n\n    if not lut:\n        try:\n            from PIL import PaletteFile\n            fp.seek(0)\n            p = PaletteFile.PaletteFile(fp)\n            lut = p.getpalette()\n        except (SyntaxError, ValueError):\n            # import traceback\n            # traceback.print_exc()\n            pass\n\n    if not lut:\n        raise IOError(\"cannot load palette\")\n\n    return lut  # data, rawmode\n", "path": "PIL/ImagePalette.py"}]}