firebase_admin 오류 발생관하여

좋은 강의 잘 듣고 있습니다. 

firebase_admin을 문서에 나와 있는 명령어로 설치를 하였습니다. 

sudo pip install firebase-admin

pip install --user firebase-admin

(cv) pi@raspberrypi:~ $ sudo pip install firebase-admin 명령어를 실행하면 이미 설치가 되어있다고 나오는데
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Requirement already satisfied: firebase-admin in /usr/local/lib/python3.7/dist-packages (4.3.0)
Requirement already satisfied: google-cloud-storage>=1.18.0 in /usr/local/lib/python3.7/dist-packages(from firebase-admin) (1.31.0)
Requirement already satisfied: cachecontrol>=0.12.6 in /usr/local/lib/python3.7/dist-packages (from firebase-admin) (0.12.6)
Requirement already satisfied: google-cloud-firestore>=1.4.0; platform_python_implementation != "PyPy" in /usr/local/lib/python3.7/dist-packages (from firebase-admin) (1.9.0)
Requirement already satisfied: google-api-python-client>=1.7.8 in /usr/local/lib/python3.7/dist-packages (from firebase-admin) (1.11.0)
Requirement already satisfied: google-api-core[grpc]<2.0.0dev,>=1.14.0; platform_python_implementation != "PyPy" in /usr/local/lib/python3.7/dist-packages (from firebase-admin) (1.22.1)
Requirement already satisfied: google-resumable-media<2.0dev,>=1.0.0 in /usr/local/lib/python3.7/dist-packages (from google-cloud-storage>=1.18.0->firebase-admin) (1.0.0)
Requirement already satisfied: google-cloud-core<2.0dev,>=1.4.1 in /usr/local/lib/python3.7/dist-packages (from google-cloud-storage>=1.18.0->firebase-admin) (1.4.1)
Requirement already satisfied: google-auth<2.0dev,>=1.11.0 in /usr/local/lib/python3.7/dist-packages(from google-cloud-storage>=1.18.0->firebase-admin) (1.21.0)
Requirement already satisfied: msgpack>=0.5.2 in /usr/local/lib/python3.7/dist-packages (from cachentrol>=0.12.6->firebase-admin) (1.0.0)
Requirement already satisfied: requests in /usr/lib/python3/dist-packages (from cachecontrol>=0.12.6->firebase-admin) (2.21.0)
Requirement already satisfied: pytz in /usr/local/lib/python3.7/dist-packages (from google-cloud-firestore>=1.4.0; platform_python_implementation != "PyPy"->firebase-admin) (2020.1)
Requirement already satisfied: google-auth-httplib2>=0.0.3 in /usr/local/lib/python3.7/dist-packages(from google-api-python-client>=1.7.8->firebase-admin) (0.0.4)
Requirement already satisfied: uritemplate<4dev,>=3.0.0 in /usr/local/lib/python3.7/dist-packages (from google-api-python-client>=1.7.8->firebase-admin) (3.0.1)
Requirement already satisfied: httplib2<1dev,>=0.9.2 in /usr/local/lib/python3.7/dist-packages (from google-api-python-client>=1.7.8->firebase-admin) (0.18.1)

파이썬 파이어베이스 admin설정하기 동영상강의 처럼 실행하면
(cv) pi@raspberrypi:~/rbp_dnn $ python3 RBP_DL21_YOLO_car.py
['person', 'bicycle', 'car', 'motorbike', 'aeroplane', 'bus', 'train', 'truck',
1 99.43%
=== A frame took 22.433 seconds
Traceback (most recent call last):
  File "RBP_DL21_YOLO_car.py", line 75, in <module>
    import firebase_admin
ModuleNotFoundError: No module named 'firebase_admin'

이렇게 firebase_amdmin을 찾을수 없다고 나옵니다.

감사합니다.