My terrible Reddit Invitation Manager for Discord

#Travis Weir
#8/1/17
#FRC Discord Reddit Invitation Manager (restructured to fix stability issues)

import praw, discord
from datetime import datetime
from discord.ext.commands import Bot
discord_bot = Bot(command_prefix='^')
reddit = praw.Reddit(client_id='',    #Log in to Reddit
                     client_secret='', password='',  #Log in to Reddit
                     user_agent='FRC Discord Reddit Invitation Bot by Travis', username='')   #Log in to Reddit

#To-do for you: Put in bot token, replace "333825924942397442" with the ID of the channel the invites go in. Give me a link to add it to my test server (this is important if you want the bot to auto-check)
#Required files in same directory: isMessage.txt author.txt
def messageboolset(yesorno):
    messagebool = open("isMessage.txt", "r+")
    if yesorno:
        messagebool.write("True")
    elif not yesorno:
        messagebool.write("Fals")
    else:
        print("Error in calling messageboolset")
    messagebool.close()
def approvalbot(isapproved, link):
    f = open("author.txt","r")
    user = f.read() #Make a copy of the user variable as a string
    f = open("author.txt","w")
    f.write('')
    f.close()
    if isapproved:  #if the user is approved,
        reddit.redditor(user).message('DO NOT REPLY: FRC Discord: Approved', link) #Send the Reddit user a message with the link and an approval notice
    else:   #Otherwise
        reddit.redditor(user).message('FRC Discord: Denied', "Hello! Unfortunately, the mod team has decided to deny you access to the FRC Discord at this time.") #Send them a denial message
    print("Message sent successfully to", user) #Put that the message was sent in the console
def checkismessage():
    messagebool = open("isMessage.txt", "r+")
    isMessage = messagebool.read()
    isMessage = isMessage.rstrip('\n')
    print(isMessage)
    if isMessage == "Fals":
        return False
    elif isMessage == "True":
        return True
    else:
        print("Error in checkismessage")
        print(isMessage)
@discord_bot.command() #Define a command
async def approve(ctx): #Define the !approve command
    isMessage = checkismessage()
    if isMessage:
        print("Approval registered")    #Print that the approval was registered to the debug shell
        await discord.utils.get(discord_bot.get_all_channels(), id=354435647441731584).send("Sending invite link") #Tell the Discord channel that it's sending them the invite
        approval = True #Set the approval variable to True
        link = await discord.utils.get(discord_bot.get_all_channels(), id=288856064089128960).create_invite(xkcd=True, max_uses=1) #Generate an invite link
        print(link) #Put the link in the debug shell
        invitation = str(link.url) #Make it a string
        messageboolset(False)
        approvalbot(approval, invitation) #Call the approval bot with the necessary variables
    else:
        await discord.utils.get(discord_bot.get_all_channels(), id=354435647441731584).send("No message to interact with!") # Send "sending denial message" to the Discord channel
@discord_bot.command() #Define a command
async def deny(ctx): #Define the !deny command
    print("Denial registered") #Put the Denial registered message in the debug shell
    isMessage = checkismessage()
    if isMessage:
        await discord.utils.get(discord_bot.get_all_channels(), id=354435647441731584).send("Sending denial message") #Send "sending denial message" to the Discord channel
        approval = False #Approval is False
        link = "none" #No link
        messageboolset(False)
        approvalbot(approval, link) #Call the approval send bot with necessary variables
    else:
        await discord.utils.get(discord_bot.get_all_channels(), id=354435647441731584).send("No message to interact with!") # Send "sending denial message" to the Discord channel
@discord_bot.command() #Define a command
async def skip(): #Define the !skip command
    print("Skip registered") #Print "Skip registered" to the debug console
    isMessage = checkismessage()
    if isMessage:
        await discord.utils.get(discord_bot.get_all_channels(), id=354435647441731584).send("Skipping...sorry about that") #Send "Skipping" message to the Discord channel
        messageboolset(False)
    else:
        await discord.utils.get(discord_bot.get_all_channels(), id=354435647441731584).send("No message to interact with!") # Send "sending denial message" to the Discord channel
@discord_bot.command()
async def check(ctx):
    unread = 0      #Set the unread message number to a base of 0
    for msg in reddit.inbox.unread(limit=1):     #For every unread message in the Reddit inbox,
        unread = unread + 1 #Add one to the unread message count
        print("Well, I got this far. I added one to the unread count")
    if unread == 0: #If no new messages,
        print("No new messages, checking again soon. To close the bot, press CTRL and C simultaneously. You'll get an ugly error message but the bot will turn off.")   #Post debug message to shell
        await discord.utils.get(discord_bot.get_all_channels(), id=343073901842137098).send("No new messages!") # Leave this ID, it's for a reason
    elif unread != 0:
        for item in reddit.inbox.unread(limit=1): #Grab an unread message
            unread_message = item #Put the unread message into a variable
            print("The unread message is in a variable")
            messagesubject = str(unread_message.subject)
    if unread != 0:   #If there is an unread message,
        print("New message detected, parsing") #Post this debug message in the shell
        message_subject = unread_message.subject #Put the message subject in a variable
        message_body = str(unread_message.body) #Put the message into a variable
        message_author = unread_message.author #Put the message author into a variable
        print("Author:", message_author) #Print the Reddit username to the debug console
        print("Subject:", message_subject) #Print the subject to the debug console
        print("Body:", message_body) #Print the message body to the debug console
        unreadmsg = [unread_message] #Put the unread message ID in a list format
        author = str(message_author)
        f = open("author.txt","w")
        f.write(author)
        f.close()
        messageboolset(True)
        message = "**" + author + "** would like to join the server. Here's their message:\n" + message_body
        reddit.inbox.mark_read(unreadmsg) #Mark the message as read
        await discord.utils.get(discord_bot.get_all_channels(), id=354435647441731584).send(message) # Send message to the Discord channel
@discord_bot.event
async def on_ready():
    await discord.utils.get(discord_bot.get_all_channels(), id=343073901842137098).send("I'm alive!")
discord_bot.run('') #Run my bot (add token here)