Embed Scheme is 'none'

Summary

Sending embeds is broken for new discord version (1.6 -> 1.7.1)

Reproduction Steps

My bot used to work before with version 1.6. After upgrading to 1.7.1, all embeds fail to send with the same stack trace.

Minimal Reproducible Code

No response

Expected Results

The embed should be sent correctly. Screenshot of the expected result

Actual Results

Fails with the following stacktrace

ERROR:asyncio:_ClientEventTask exception was never retrieved
future: <ClientEventTask state=finished event=on_command_error coro=<function on_command_error at 0x7fadc1af0c10> exception=HTTPException('400 Bad Request (error code: 50035): Invalid Form Body\nIn embed.url: Scheme "none" is not supported. Scheme must be one of (\'http\', \'https\').')>
Traceback (most recent call last):
  File "/app/.heroku/python/lib/python3.8/site-packages/discord/client.py", line 343, in _run_event
    await coro(*args, **kwargs)
  File "bot.py", line 337, in on_command_error
    await ctx.guild.get_channel(ADMIN_CHANNEL_ID).send(embed=embed)
  File "/app/.heroku/python/lib/python3.8/site-packages/discord/abc.py", line 1064, in send
    data = await state.http.send_message(channel.id, content, tts=tts, embed=embed,
  File "/app/.heroku/python/lib/python3.8/site-packages/discord/http.py", line 254, in request
    raise HTTPException(r, data)
discord.errors.HTTPException: 400 Bad Request (error code: 50035): Invalid Form Body
In embed.url: Scheme "none" is not supported. Scheme must be one of ('http', 'https').

Intents

members

System Information

What works:

~ $ python -m discord -v
- Python v3.8.5-final
- discord.py v1.6.0-final
- aiohttp v3.7.4.post0
- system info: Linux 4.4.0-1086-aws #90-Ubuntu SMP Wed Feb 17 07:04:43 UTC 2021

What doesn’t work:

~ $ python -m discord -v
- Python v3.8.5-final
- discord.py v1.7.1-final
- aiohttp v3.7.4.post0
- system info: Linux 4.4.0-1086-aws #90-Ubuntu SMP Wed Feb 17 07:04:43 UTC 2021

Checklist

I have searched the open issues for duplicates. I have shown the entire traceback, if possible. I have removed my token from display, if visible.

[Rapptz]

These methods were not documented to accept None and were documented to be implicitly casted to str. There was a bug originally that didn’t do it at init time and I guess this caused an unfortunate bug to surface on your end.

I don’t really consider it breaking since the documentation never mentioned it was okay to pass None.

[sergree]

Faced the same problem.

My old code:

def __construct_embed(title, description, url=None):
    embed = discord.Embed(
            title=title,
            color=config.embed_color,
            description=description,
            url=url
        )
    return embed

Solution:

def __construct_embed(title, description, url=discord.embeds.EmptyEmbed):
    embed = discord.Embed(
            title=title,
            color=config.embed_color,
            description=description,
            url=url
        )
    return embed

The code worked perfectly for a few years, don’t tell me it’s not a library problem. Thanks.