--- bin/hatop.orig	2019-12-03 21:58:07 UTC

+++ bin/hatop

@@ -414,16 +414,16 @@ class Socket:

         # Enter the interactive socket mode. This requires HAProxy 1.4+ and

         # allows us to error out early if connected to an older version.

         try:

-            self.send('prompt')

+            self.send(b'prompt')

             self.wait()

-            self.send('set timeout cli %d' % HAPROXY_CLI_TIMEOUT)

+            self.send(b'set timeout cli %d' % HAPROXY_CLI_TIMEOUT)

             self.wait()

         except SocketError:

             raise SocketError('error while initializing interactive mode')

     def close(self):

         try:

-            self.send('quit')

+            self.send(b'quit')

         except:

             pass

         try:

@@ -432,7 +432,7 @@ class Socket:

             pass

     def send(self, cmdline):

-        self._socket.sendall('%s\n' % cmdline)

+        self._socket.sendall(b'%s\n' % cmdline)

     def wait(self):

         # Wait for the prompt and discard data.

@@ -495,7 +495,7 @@ class SocketData:

                 raise ValueError('invalid proxy filter: %s' % filter)

         # Convert proxy filters into more efficient stat filters

-        self.socket.send('show stat')

+        self.socket.send(b'show stat')

         pxstat, pxcount, svcount = parse_stat(self.socket.recv())

         proxy_iid_map = {} # {pxname: iid, ...}

@@ -514,11 +514,11 @@ class SocketData:

                 raise RuntimeError('proxy not found: %s' % pxname)

         # Register filters

-        for iid in proxy_iid_map.itervalues():

+        for iid in proxy_iid_map.values():

             self._filters.add((iid, -1, -1))

     def update_info(self):

-        self.socket.send('show info')

+        self.socket.send(b'show info')

         iterable = self.socket.recv()

         self.info = parse_info(iterable)

@@ -535,7 +535,7 @@ class SocketData:

         if self._filters:

             for filter in self._filters:

-                self.socket.send('show stat %d %d %d' % filter)

+                self.socket.send(b'show stat %d %d %d' % filter)

                 filter_stat, filter_pxcount, filter_svcount = \

                         parse_stat(self.socket.recv())

@@ -546,7 +546,7 @@ class SocketData:

                 self.svcount += filter_svcount

                 self.stat.update(filter_stat)

         else:

-            self.socket.send('show stat')

+            self.socket.send(b'show stat')

             self.stat, self.pxcount, self.svcount = \

                     parse_stat(self.socket.recv())

@@ -716,7 +716,7 @@ class ScreenCLI:

         self.ibuf = list(self.ihist[-1])

         self.mvend()

-    def next(self):

+    def __next__(self):

         if len(self.ihist) == 0:

             return

         self.ihist.rotate(-1)

@@ -854,7 +854,7 @@ class ScreenCLI:

     def execute_cmdline(self, cmdline):

         self.obuf.append('* %s' % time.ctime())

         self.obuf.append('> %s' % cmdline)

-        self.screen.data.socket.send(cmdline)

+        self.screen.data.socket.send(cmdline.encode())

         self.obuf.extend(self.screen.data.socket.recv())

         self.update_screenlines()

@@ -1087,7 +1087,7 @@ class Screen:

         self.data.update_info()

         try:

             self.data.update_stat()

-        except RuntimeWarning, x:

+        except RuntimeWarning as x:

             self.exceptions.append(x)

     def update_bars(self):

@@ -1438,19 +1438,19 @@ class StatusBar:

 # ------------------------------------------------------------------------- #

 def human_seconds(numeric):

-    for minval, prefix in sorted(PREFIX_TIME.items(), reverse=True):

+    for minval, prefix in sorted(list(PREFIX_TIME.items()), reverse=True):

         if (numeric/minval):

             return '%d%s' % (numeric/minval, prefix)

     return '%ds' % numeric

 def human_metric(numeric):

-    for minval, prefix in sorted(PREFIX_METRIC.items(), reverse=True):

+    for minval, prefix in sorted(list(PREFIX_METRIC.items()), reverse=True):

         if (numeric/minval):

             return '%d%s' % (numeric/minval, prefix)

     return str(numeric)

 def human_binary(numeric):

-    for minval, prefix in sorted(PREFIX_BINARY.items(), reverse=True):

+    for minval, prefix in sorted(list(PREFIX_BINARY.items()), reverse=True):

         if (numeric/minval):

             return '%.2f%s' % (float(numeric)/float(minval), prefix)

     return '%dB' % numeric

@@ -1683,20 +1683,20 @@ def parse_info(iterable):

         line = line.strip()

         if not line:

             continue

-        for key, regexp in HAPROXY_INFO_RE.iteritems():

+        for key, regexp in HAPROXY_INFO_RE.items():

             match = regexp.match(line)

             if match:

                 info[key] = match.group('value')

                 break

-    for key in HAPROXY_INFO_RE.iterkeys():

+    for key in HAPROXY_INFO_RE.keys():

         if not key in info:

             raise RuntimeError('missing "%s" in info data' % key)

     return info

 def get_idx(field):

-    return filter(lambda x: x[1][1] == field, HAPROXY_STAT_CSV)[0][0]

+    return [x for x in HAPROXY_STAT_CSV if x[1][1] == field][0][0]

 def get_width(width, xmax, ncols, idx):

     # distribute excess space evenly from left to right

@@ -1732,7 +1732,7 @@ def get_head(mode):

 def get_screenlines(stat):

     screenlines = []

-    for iid, svstats in stat.iteritems():

+    for iid, svstats in stat.items():

         lines = []

         try:

@@ -1774,11 +1774,11 @@ def get_screenline(mode, stat):

         value = stat[column.name]

         for filter in column.filters['always']:

-            value = filter(value)

+            value = list(filter(value))

         if len(str(value)) > column.width:

             for filter in column.filters['ondemand']:

-                value = filter(value)

+                value = list(filter(value))

         value = str(value)

         value = trim(value, column.width)

@@ -2099,7 +2099,7 @@ def mainloop(screen, interval):

             elif c == curses.KEY_UP:

                 screen.cli.prev()

             elif c == curses.KEY_DOWN:

-                screen.cli.next()

+                next(screen.cli)

             # output history

             elif c == curses.KEY_PPAGE:

@@ -2202,21 +2202,21 @@ if __name__ == '__main__':

                     break

                 except KeyboardInterrupt:

                     break

-                except CursesError, e:

+                except CursesError as e:

                     screen.reset()

                     log('curses error: %s, restarting...' % e)

                     time.sleep(1)

                     screen.recover()

-        except ValueError, e:

+        except ValueError as e:

             screen.reset()

             log('value error: %s' % e)

             sys.exit(1)

-        except RuntimeError, e:

+        except RuntimeError as e:

             screen.reset()

             log('runtime error: %s' % e)

             sys.exit(1)

-        except SocketError, e:

+        except SocketError as e:

             screen.reset()

             log('socket error: %s' % e)

             sys.exit(2)