why it still hints "package... not installed"?

[luckypoem]

hi.

root@umh:/acmebot# pip3 install -r requirements.txt
Requirement already satisfied: appdirs>=1.4.3 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from -r requirements.txt (line 1))
Requirement already satisfied: pyparsing>=2.2.0 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from -r requirements.txt (line 2))
Requirement already satisfied: packaging>=16.8 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from -r requirements.txt (line 3))
Requirement already satisfied: pyOpenSSL>=17.5.0 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from -r requirements.txt (line 4))
Requirement already satisfied: py3dns>=3.1.0 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from -r requirements.txt (line 5))
Requirement already satisfied: cryptography>=2.1.4 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from -r requirements.txt (line 6))
Requirement already satisfied: asn1crypto>=0.24.0 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from -r requirements.txt (line 7))
Requirement already satisfied: acme>=0.25.1 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from -r requirements.txt (line 8))
Requirement already satisfied: six in /usr/local/python-3.6.4/lib/python3.6/site-packages (from packaging>=16.8->-r requirements.txt (line 3))
Requirement already satisfied: cffi!=1.11.3,>=1.8 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from cryptography>=2.1.4->-r requirements.txt (line 6))
Requirement already satisfied: requests-toolbelt>=0.3.0 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: setuptools in /usr/local/python-3.6.4/lib/python3.6/site-packages (from acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: josepy>=1.0.0 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: mock in /usr/local/python-3.6.4/lib/python3.6/site-packages (from acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: requests[security]>=2.4.1 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: pyrfc3339 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: pytz in /usr/local/python-3.6.4/lib/python3.6/site-packages (from acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: pycparser in /usr/local/python-3.6.4/lib/python3.6/site-packages (from cffi!=1.11.3,>=1.8->cryptography>=2.1.4->-r requirements.txt (line 6))
Requirement already satisfied: pbr>=0.11 in /usr/local/python-3.6.4/lib/python3.6/site-packages (from mock->acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: ndg-httpsclient; extra == "security" in /usr/local/python-3.6.4/lib/python3.6/site-packages (from requests[security]>=2.4.1->acme>=0.25.1->-r requirements.txt (line 8))
Requirement already satisfied: pyasn1; extra == "security" in /usr/local/python-3.6.4/lib/python3.6/site-packages (from requests[security]>=2.4.1->acme>=0.25.1->-r requirements.txt (line 8))
You are using pip version 9.0.1, however version 19.0 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
root@umh:/acmebot# ./acmebot -h
Package appdirs is not installed
Package pyparsing is not installed
Package packaging is not installed
Package pyOpenSSL is not installed
Package py3dns is not installed
Package cryptography is not installed
Package asn1crypto is not installed
Package acme is not installed
Run "pip3 install -r /root/acmebot/requirements.txt" to complete installation
root@umh:~/acmebot#

tks