新手求助：Windows Powershell ISE中运行Python解释器异常问题

Hey there, sorry to hear you're hitting this frustrating snag as a new Python learner—let's get this sorted out quickly!

Why this happens #

PowerShell ISE isn't a full interactive terminal like regular PowerShell or Command Prompt. When you launch the Python REPL (the >>> prompt environment) directly in ISE's command line, it messes up how Python handles input/output. That weird > >> prompt is a sign Python's waiting for input, but ISE's console can't properly pass it along, leading to the locked-up state.

Easy fixes to try #

• Use regular PowerShell instead of ISE: This is the quickest fix. Just open the standard PowerShell (search for "PowerShell" in the Start Menu, not "PowerShell ISE"), type py or python, and you should see the normal >>> prompt pop up right away. Regular PowerShell works perfectly with Python's interactive mode.
• Run scripts instead of using REPL in ISE: If you want to stay in ISE, focus on writing Python script files (save them with a .py extension, like my_first_script.py). Then run them by typing py my_first_script.py or python my_first_script.py in ISE's command line—this bypasses the interactive REPL issue entirely.
• Double-check your Python installation: Make sure Python was added to your system's PATH during installation. In regular PowerShell, run py --version or python --version—if it shows your Python version, you're good. If not, reinstall Python and make sure to check the box that says "Add Python to PATH" when you go through the setup steps.

内容的提问来源于stack exchange，提问作者Karen Knoxville