[HOW TO] dash_bootstrap_components installed succesfully but no recognised

tphack:master !2 ?2 > python3 app.py                                                                                                                            
Traceback (most recent call last):
  File "/Users/tien.phan/Documents/github/dashboard/app/app.py", line 7, in <module>
    import dash_bootstrap_components as dbc
ModuleNotFoundError: No module named 'dash_bootstrap_components'

It was perfectly installed 
tphack:master !2 ?2 > pip install dash-bootstrap-components                                                                                                      

Requirement already satisfied: dash-bootstrap-components in /usr/local/lib/python3.11/site-packages (1.4.1)

However, when I run the app, I still got this error:
tphack:master !2 ?2 > python3 app.py                                                                                                                            
Traceback (most recent call last):
  File "/Users/tien.phan/Documents/github/dashboard/app/app.py", line 7, in <module>
    import dash_bootstrap_components as dbc
ModuleNotFoundError: No module named 'dash_bootstrap_components'

How to fix? 
I install that package to user folder 
tphack:master !2 ?2 > python -m pip install --user dash-bootstrap-components

python -m explaination: it will locate the module and execute its content as the __main__ module. This allows you to run a module directly from the command line.

tphack:master !2 ?3 > source ./env/bin/activate
tphack:master !2 ?3 > python -m pip install dash-bootstrap-components 

Now it works
tphack:master !2 ?3 > python3 app.py                                                                                                                      py app at 16:00:37
Dash is running on http://0.0.0.0:8050/

INFO:dash.dash:Dash is running on http://0.0.0.0:8050/