弱智python问题，我都装了的模块，为啥还会报错吗？

C:\Users\tom>pip3 install pexpect
Collecting pexpect
Downloading pexpect-4.8.0-py2.py3-none-any.whl (59 kB)
| | 30 kB 115 kB/s eta 0:0
| | 40 kB 93 kB/s eta
| | 51 kB 93 kB
|| 59 kB 1
4 kB/s
Collecting ptyprocess>=0.5
Downloading ptyprocess-0.7.0-py2.py3-none-any.whl (13 kB)
Installing collected packages: ptyprocess, pexpect
Successfully installed pexpect-4.8.0 ptyprocess-0.7.0
WARNING: You are using pip version 20.2.1; however, version 22.1.2 is available

You should consider upgrading via the 'c:\users\tom\appdata\local\programs\pyth
n\python38\python.exe -m pip install --upgrade pip' command.

C:\Users\tom>

Traceback (most recent call last):
File "C:/Users/tom/PycharmProjects/pythonProject/main.py", line 4, in <module>
import pexpect
ModuleNotFoundError: No module named 'pexpect'

Process finished with exit code 1