Simple polling function for a discord.py discord bot

quickpoll.py

import discord
from discord.ext import commands


class QuickPoll:
    """"""

    def __init__(self, bot):
        self.bot = bot

    @commands.command(pass_context=True)
    async def quickpoll(self, ctx, question, *options: str):
        if len(options) <= 1:
            await self.bot.say('You need more than one option to make a poll!')
            return
        if len(options) > 10:
            await self.bot.say('You cannot make a poll for more than 10 things!')
            return

        if len(options) == 2 and options[0] == 'yes' and options[1] == 'no':
            reactions = ['✅', '❌']
        else:
            reactions = ['1⃣', '2⃣', '3⃣', '4⃣', '5⃣', '6⃣', '7⃣', '8⃣', '9⃣', '🔟']

        description = []
        for x, option in enumerate(options):
            description += '\n {} {}'.format(reactions[x], option)
        embed = discord.Embed(title=question, description=''.join(description))
        react_message = await self.bot.say(embed=embed)
        for reaction in reactions[:len(options)]:
            await self.bot.add_reaction(react_message, reaction)
        embed.set_footer(text='Poll ID: {}'.format(react_message.id))
        await self.bot.edit_message(react_message, embed=embed)

    @commands.command(pass_context=True)
    async def tally(self, ctx, id):
        poll_message = await self.bot.get_message(ctx.message.channel, id)
        if not poll_message.embeds:
            return
        embed = poll_message.embeds[0]
        if poll_message.author != ctx.message.server.me:
            return
        if not embed['footer']['text'].startswith('Poll ID:'):
            return
        unformatted_options = [x.strip() for x in embed['description'].split('\n')]
        opt_dict = {x[:2]: x[3:] for x in unformatted_options} if unformatted_options[0][0] == '1' \
            else {x[:1]: x[2:] for x in unformatted_options}
        # check if we're using numbers for the poll, or x/checkmark, parse accordingly
        voters = [ctx.message.server.me.id]  # add the bot's ID to the list of voters to exclude it's votes

        tally = {x: 0 for x in opt_dict.keys()}
        for reaction in poll_message.reactions:
            if reaction.emoji in opt_dict.keys():
                reactors = await self.bot.get_reaction_users(reaction)
                for reactor in reactors:
                    if reactor.id not in voters:
                        tally[reaction.emoji] += 1
                        voters.append(reactor.id)

        output = 'Results of the poll for "{}":\n'.format(embed['title']) + \
                 '\n'.join(['{}: {}'.format(opt_dict[key], tally[key]) for key in tally.keys()])
        await self.bot.say(output)


def setup(bot):
    bot.add_cog(QuickPoll(bot))

For those still trying to use this with the newer versions, you can still make this work, just keep in mind that you will need to exchange at minimum the following functions:
self.bot.say => ctx.send(embed=embed)
self.bot.add_reaction => react_message.add_reactions(reaction)
self.bot.edit_message => react_message.edit(embed=embed)

You will want to make similar changes to the tally function, replacing any self.bot references with the updated method on either the object or master class function

1.5 discord.py rewrite

import discord
from discord.ext import commands


class QuickPoll(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

    @commands.command(pass_context=True)
    async def poll(self, ctx, question, *options: str):
        if len(options) <= 1:
            await ctx.send('You need more than one option to make a poll!')
            return
        if len(options) > 10:
            await ctx.send('You cannot make a poll for more than 10 things!')
            return

        if len(options) == 2 and options[0] == 'yes' and options[1] == 'no':
            reactions = ['✅', '❌']
        else:
            reactions = ['1⃣', '2⃣', '3⃣', '4⃣', '5⃣', '6⃣', '7⃣', '8⃣', '9⃣', '🔟']

        description = []
        for x, option in enumerate(options):
            description += '\n {} {}'.format(reactions[x], option)
        embed = discord.Embed(title=question, description=''.join(description))
        react_message = await ctx.send(embed=embed)
        for reaction in reactions[:len(options)]:
            await react_message.add_reaction(reaction)
        embed.set_footer(text='Poll ID: {}'.format(react_message.id))
        await react_message.edit_message(embed=embed)

    @commands.command(pass_context=True)
    async def tally(self, ctx, id=None):
        poll_message = await ctx.channel.fetch_message(id)
        embed = poll_message.embeds[0]
        unformatted_options = [x.strip() for x in embed.description.split('\n')]
        print(f'unformatted{unformatted_options}')
        opt_dict = {x[:2]: x[3:] for x in unformatted_options} if unformatted_options[0][0] == '1' \
            else {x[:1]: x[2:] for x in unformatted_options}
        # check if we're using numbers for the poll, or x/checkmark, parse accordingly
        voters = [self.bot.user.id]  # add the bot's ID to the list of voters to exclude it's votes

        tally = {x: 0 for x in opt_dict.keys()}
        for reaction in poll_message.reactions:
            if reaction.emoji in opt_dict.keys():
                reactors = await reaction.users().flatten()
                for reactor in reactors:
                    if reactor.id not in voters:
                        tally[reaction.emoji] += 1
                        voters.append(reactor.id)
        output = f"Results of the poll for '{embed.title}':\n" + '\n'.join(['{}: {}'.format(opt_dict[key], tally[key]) for key in tally.keys()])
        await ctx.send(output)


def setup(bot):
    bot.add_cog(QuickPoll(bot))

help

you didn't give the required arguments

help

use: await self.bot.send("...")

1.5 discord.py rewrite

import discord
from discord.ext import commands


class QuickPoll(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

    @commands.command(pass_context=True)
    async def poll(self, ctx, question, *options: str):
        if len(options) <= 1:
            await ctx.send('You need more than one option to make a poll!')
            return
        if len(options) > 10:
            await ctx.send('You cannot make a poll for more than 10 things!')
            return

        if len(options) == 2 and options[0] == 'yes' and options[1] == 'no':
            reactions = ['✅', '❌']
        else:
            reactions = ['1⃣', '2⃣', '3⃣', '4⃣', '5⃣', '6⃣', '7⃣', '8⃣', '9⃣', '🔟']

        description = []
        for x, option in enumerate(options):
            description += '\n {} {}'.format(reactions[x], option)
        embed = discord.Embed(title=question, description=''.join(description))
        react_message = await ctx.send(embed=embed)
        for reaction in reactions[:len(options)]:
            await react_message.add_reaction(reaction)
        embed.set_footer(text='Poll ID: {}'.format(react_message.id))
        await react_message.edit_message(embed=embed)

    @commands.command(pass_context=True)
    async def tally(self, ctx, id=None):
        poll_message = await ctx.channel.fetch_message(id)
        embed = poll_message.embeds[0]
        unformatted_options = [x.strip() for x in embed.description.split('\n')]
        print(f'unformatted{unformatted_options}')
        opt_dict = {x[:2]: x[3:] for x in unformatted_options} if unformatted_options[0][0] == '1' \
            else {x[:1]: x[2:] for x in unformatted_options}
        # check if we're using numbers for the poll, or x/checkmark, parse accordingly
        voters = [self.bot.user.id]  # add the bot's ID to the list of voters to exclude it's votes

        tally = {x: 0 for x in opt_dict.keys()}
        for reaction in poll_message.reactions:
            if reaction.emoji in opt_dict.keys():
                reactors = await reaction.users().flatten()
                for reactor in reactors:
                    if reactor.id not in voters:
                        tally[reaction.emoji] += 1
                        voters.append(reactor.id)
        output = f"Results of the poll for '{embed.title}':\n" + '\n'.join(['{}: {}'.format(opt_dict[key], tally[key]) for key in tally.keys()])
        await ctx.send(output)


def setup(bot):
    bot.add_cog(QuickPoll(bot))

I think this line no longer works in latest API.

await react_message.edit_message(embed=embed)

The correct one is just edit https://discordpy.readthedocs.io/en/latest/api.html#discord.Message.edit

This worked for me
await react_message.edit(embed=embed)