title: file ending in .py considered .txt file and not launching with python idle
body: <p>im trying to follow this tutorial
  <a href="https://www.youtube.com/watch?v=YRAIUA-Oc1Y&amp;t=42s&amp;ab_channel=KianBrose" rel="nofollow noreferrer">https://www.youtube.com/watch?v=YRAIUA-Oc1Y&amp;t=42s&amp;ab_channel=KianBrose</a></p>
  <p>first i tried with python 3.9.2
  but the comments suggested using 3.7.9 so i uninstalled 3.9.2 and i installed 3.7.9 with shell (im a complete newbie in this i have no clue what any of this means)
  and re did the commands inputed into the console in 3.7.9
  after that i created the project folder inside of it i created the txt file and called it bot.py
  how ever it was still considered a TxT file
  the tutorial said to open the file with idle but when i tried to do that the option did no appear so i tried to directly make it open following this
  C:\Users\me\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.7
  and after that the bot.py file did not open still considered a TXT file</p>
  <p>sry for my english i know it is moist garbage im just tryna automate some things for a game and this still semes less tedious than actually doing the thing i wana automate plus they say programing gets u money</p>