Python error code

Hi, i keep getting this error code. can someone help me? I am using window and installed python 3.10.7
I keep entering the code print(“hello world”) and i keep getting this error.
Windows PowerShell
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PS C:\Users\Tony> HelloWorld $python app.py
HelloWorld : The term ‘HelloWorld’ is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the
path is correct and try again.
At line:1 char:1

  • HelloWorld $python app.py
  •   + CategoryInfo          : ObjectNotFound: (HelloWorld:String) [], CommandNotFoundException
      + FullyQualifiedErrorId : CommandNotFoundException
    
    

PS C:\Users\Tony>

If you had searched the forums you would see that this comes up all the time and has been answered many times: Search results for 'HelloWorld $python app.py' - Code with Mosh Forum

Basically most of that is just part of Mosh’s prompt. You only need to type “python app.py”