diff --git a/Lib/asyncore.py b/Lib/asyncore.py
index 1a12255..cf68835 100644
--- a/Lib/asyncore.py
+++ b/Lib/asyncore.py
@@ -128,7 +128,7 @@
         try:
             r, w, e = select.select(r, w, e, timeout)
         except select.error as err:
-            if err[0] != EINTR:
+            if err.args[0] != EINTR:
                 raise
             else:
                 return
@@ -174,7 +174,7 @@
         try:
             r = pollster.poll(timeout)
         except select.error as err:
-            if err[0] != EINTR:
+            if err.args[0] != EINTR:
                 raise
             r = []
         for fd, flags in r:
@@ -230,7 +230,7 @@
             try:
                 self.addr = sock.getpeername()
             except socket.error as err:
-                if err[0] == ENOTCONN:
+                if err.args[0] == ENOTCONN:
                     # To handle the case where we got an unconnected
                     # socket.
                     self.connected = False
@@ -338,7 +338,7 @@
             conn, addr = self.socket.accept()
             return conn, addr
         except socket.error as why:
-            if why[0] == EWOULDBLOCK:
+            if why.args[0] == EWOULDBLOCK:
                 pass
             else:
                 raise
@@ -348,9 +348,9 @@
             result = self.socket.send(data)
             return result
         except socket.error as why:
-            if why[0] == EWOULDBLOCK:
+            if why.args[0] == EWOULDBLOCK:
                 return 0
-            elif why[0] in (ECONNRESET, ENOTCONN, ESHUTDOWN, ECONNABORTED):
+            elif why.args[0] in (ECONNRESET, ENOTCONN, ESHUTDOWN, ECONNABORTED):
                 self.handle_close()
                 return 0
             else:
@@ -368,7 +368,7 @@
                 return data
         except socket.error as why:
             # winsock sometimes throws ENOTCONN
-            if why[0] in [ECONNRESET, ENOTCONN, ESHUTDOWN, ECONNABORTED]:
+            if why.args[0] in [ECONNRESET, ENOTCONN, ESHUTDOWN, ECONNABORTED]:
                 self.handle_close()
                 return b''
             else:
@@ -381,7 +381,7 @@
         try:
             self.socket.close()
         except socket.error as why:
-            if why[0] not in (ENOTCONN, EBADF):
+            if why.args[0] not in (ENOTCONN, EBADF):
                 raise
 
     # cheap inheritance, used to pass all other attribute
@@ -548,7 +548,7 @@
         try:
             x.close()
         except OSError as x:
-            if x[0] == EBADF:
+            if x.args[0] == EBADF:
                 pass
             elif not ignore_all:
                 raise