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I'm trying to make discord bot execute python code line by line similar to python interactive shell

Everything works fine but I have some problems with loops

Instead of printing i one by one, and waiting second between them, it print 0 to 9 instantly

There is a simplified example:

if 'q' in message.content:
   redirected_output = sys.stdout = StringIO()
   exec('for i in range(10):\n   print(i)\n   time.sleep(1)')
if redirected_output.getvalue():
   await message.channel.send(f'`{redirected_output.getvalue()}`')

Video

Full code here

Issue

Attempt using asyncio.sleep inside of async exec

if 'q' in message.content:                               
   redirected_output = sys.stdout = StringIO()
   await aexec('for i in range(10):\n   print(i)\n   await asyncio.sleep(1)')
   if redirected_output.getvalue():
      await message.channel.send(f'`{redirected_output.getvalue()}`')

Result is same, it print from 0 to 9 instantly

Improve this question
11
  • Please don't put all the details in links. You're only executing send once, at the bottom, not each time. Is there a reason that you must eval it? There's nothing dynamic in there, just write it as normal code. Also use asyncio.sleep not time.sleep Commented Jul 20, 2022 at 21:04
  • Yes I must use eval (exec) because I'm getting code as string from Discord messages. Also I cannot call asyncio.sleep inside because it's throw SyntaxError: 'await' outside async function Commented Jul 20, 2022 at 22:06
  • Maybe I can try with async exec But it's not what I wanted, it's still doesn't work using time.sleep Commented Jul 20, 2022 at 22:20
  • Please dont. Why do you need to exec it? The same problem is there - you’re sending the message once at the end from your output buffer. (Why do you need file-like io for that anyway?) Commented Jul 21, 2022 at 2:07
  • So different approach, What u suggest? I need exec` to execute python code from string come from Discord mesage and redirect standard output to Discord. Commented Jul 21, 2022 at 4:51
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