err: get pep8 compliant and reduce string repetition

sorry tomger, lol

cogs/err.py

@@ -13,6 +13,11 @@ class Err:
         self.dds_re = re.compile(r'0\d{2}\-\d{4}')
         self.wiiu_re = re.compile(r'1\d{2}\-\d{4}')
         self.switch_re = re.compile(r'2\d{3}\-\d{4}')
+        self.no_err_desc = "It seems like your error code is unknown. "\
+                           "You should report relevant details to "\
+                           "<@141532589725974528> (tomGER) "\
+                           "so it can be added to the bot."
+        self.rickroll = "https://www.youtube.com/watch?v=x3yXlomPCmU"
 
     @commands.command(aliases=["nxerr", "serr", "nin_err"])
     async def err(self, ctx, err: str):
@@ -23,17 +28,18 @@ class Err:
             if err in dds_errcodes:
                 err_description = dds_errcodes[err]
             else:
-                err_description = "It seems like your error code is unknown. You should report relevant details to <@141532589725974528> (tomGER) so it can be added to the bot."
+                err_description = self.no_err_desc
             # Make a nice Embed out of it
             embed = discord.Embed(title=err,
-                                  url="https://www.youtube.com/watch?v=x3yXlomPCmU",
+                                  url=self.rickroll,
                                   description=err_description)
             embed.set_footer(text="Console: 3DS")
 
             # Send message, crazy
             await ctx.send(embed=embed)
 
-        elif err.startswith("0x"):  # These are not similar to the other errors apparently ... ?
+        # These are not similar to the other errors apparently ... ?
+        elif err.startswith("0x"):
             derr = err[2:]
             derr = derr.strip()
             rc = int(derr, 16)
@@ -41,13 +47,17 @@ class Err:
             mod = (rc >> 10) & 0xFF
             summ = (rc >> 21) & 0x3F
             level = (rc >> 27) & 0x1F
-            if mod in dds_modules and summ in dds_summaries and desc in dds_descriptions and level in dds_levels:
+            if (mod in dds_modules) and\
+                    (summ in dds_summaries) and\
+                    (desc in dds_descriptions) and\
+                    (level in dds_levels):
                 # ^ Lets just make extra sure that everything is right :P
                 embed = discord.Embed(title=f"0x{rc:X}")
-                embed.add_field(name="Module", value=dds_modules[mod], inline=False)
-                embed.add_field(name="Description", value=dds_descriptions[desc], inline=False)
-                embed.add_field(name="Summary", value=dds_summaries[summ], inline=False)
-                embed.add_field(name="Level", value=dds_levels[level], inline=False)
+                embed.add_field(name="Module", value=dds_modules[mod])
+                embed.add_field(name="Description",
+                                value=dds_descriptions[desc])
+                embed.add_field(name="Summary", value=dds_summaries[summ])
+                embed.add_field(name="Level", value=dds_levels[level])
                 embed.set_footer(text="Console: 3DS")
 
                 await ctx.send(embed=embed)
@@ -59,11 +69,11 @@ class Err:
             if err in wii_u_errors:
                 err_description = wii_u_errors[err]
             else:
-                err_description = "It seems like your error code is unknown. You should report relevant details to <@141532589725974528> (tomGER) so it can be added to the bot."
+                err_description = self.no_err_desc
 
             # Make a nice Embed out of it
             embed = discord.Embed(title=err,
-                                  url="https://www.youtube.com/watch?v=x3yXlomPCmU",
+                                  url=self.rickroll,
                                   description=err_description)
             embed.set_footer(text="Console: Wii U")
             embed.add_field(name="Module", value=module, inline=True)
@@ -92,7 +102,8 @@ class Err:
             else:
                 err_module = "Unknown"
 
-            # Searching for error codes related to the Switch (Doesn't include Special Cases)
+            # Searching for error codes related to the Switch
+            # (doesn't include special cases)
             if errcode in switch_known_errcodes:
                 err_description = switch_known_errcodes[errcode]
             elif errcode in switch_support_page:
@@ -102,30 +113,37 @@ class Err:
                     if desc >= errcode_range[0] and desc <= errcode_range[1]:
                         err_description = errcode_range[2]
             else:
-                err_description = "It seems like your error code is unknown. You should report relevant details to <@141532589725974528> so it can be added to the bot."
+                err_description = self.no_err_desc
 
             # Make a nice Embed out of it
             embed = discord.Embed(title=f"{str_errcode} / {hex(errcode)}",
-                                  url="https://www.youtube.com/watch?v=x3yXlomPCmU",
+                                  url=self.rickroll,
                                   description=err_description)
             embed.set_footer(text="Console: Switch")
-            embed.add_field(name="Module", value=f"{err_module} ({module})", inline=True)
+            embed.add_field(name="Module",
+                            value=f"{err_module} ({module})",
+                            inline=True)
             embed.add_field(name="Description", value=desc, inline=True)
 
             # Send message, crazy
             await ctx.send(embed=embed)
 
-        elif err in switch_game_err:  # Special Case Handling because Nintendo feels like its required to break their format lol
+        # Special case handling because Nintendo feels like
+        # its required to break their format lol
+        elif err in switch_game_err:
             game, desc = switch_game_err[err].split(":")
 
-            embed = discord.Embed(title=err, url="https://www.youtube.com/watch?v=x3yXlomPCmU", description=desc)
+            embed = discord.Embed(title=err,
+                                  url=self.rickroll,
+                                  description=desc)
             embed.set_footer(text="Console: Switch")
             embed.add_field(name="Game", value=game, inline=True)
 
             await ctx.send(embed=embed)
 
         else:
-            await ctx.send("Unknown Format - This is either no error code or you made some mistake!")
+            await ctx.send("Unknown Format - This is either "
+                           "no error code or you made some mistake!")
 
     @commands.command(aliases=["e2h"])
     async def err2hex(self, ctx, err: str):
@@ -137,7 +155,8 @@ class Err:
             errcode = (desc << 9) + module
             await ctx.send(hex(errcode))
         else:
-            await ctx.send("This doesn't follow the typical Nintendo Switch 2XXX-XXXX format!")
+            await ctx.send("This doesn't follow the typical"
+                           " Nintendo Switch 2XXX-XXXX format!")
 
     @commands.command(aliases=["h2e"])
     async def hex2err(self, ctx, err: str):