porter@porter-Aspire:~$ sudo pip3 install catkin-tools [sudo] porter 的密码： The directory '/home/porter/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. The directory '/home/porter/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. Requirement already satisfied: catkin-tools in /usr/local/lib/python3.5/site-packages Requirement already satisfied: osrf-pycommon>0.1.1 in /usr/local/lib/python3.5/site-packages (from catkin-tools) Requirement already satisfied: PyYAML in /usr/local/lib/python3.5/site-packages (from catkin-tools) Requirement already satisfied: setuptools in /usr/local/lib/python3.5/site-packages (from catkin-tools) Requirement already satisfied: catkin-pkg>0.2.9 in /usr/local/lib/python3.5/site-packages (from catkin-tools) Requirement already satisfied: trollius in /usr/local/lib/python3.5/site-packages (from catkin-tools) Requirement already satisfied: docutils in /usr/local/lib/python3.5/site-packages (from catkin-pkg>0.2.9->catkin-tools) Requirement already satisfied: pyparsing in /usr/local/lib/python3.5/site-packages (from catkin-pkg>0.2.9->catkin-tools) Requirement already satisfied: python-dateutil in /usr/local/lib/python3.5/site-packages (from catkin-pkg>0.2.9->catkin-tools) Requirement already satisfied: six in /usr/local/lib/python3.5/site-packages (from trollius->catkin-tools) You are using pip version 9.0.1, however version 19.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command.
porter@porter-Aspire:~$ sudo pip3 install rospkg The directory '/home/porter/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. The directory '/home/porter/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. Requirement already satisfied: rospkg in /usr/local/lib/python3.5/site-packages Requirement already satisfied: PyYAML in /usr/local/lib/python3.5/site-packages (from rospkg) Requirement already satisfied: catkin-pkg in /usr/local/lib/python3.5/site-packages (from rospkg) Requirement already satisfied: python-dateutil in /usr/local/lib/python3.5/site-packages (from catkin-pkg->rospkg) Requirement already satisfied: pyparsing in /usr/local/lib/python3.5/site-packages (from catkin-pkg->rospkg) Requirement already satisfied: docutils in /usr/local/lib/python3.5/site-packages (from catkin-pkg->rospkg) Requirement already satisfied: six>=1.5 in /usr/local/lib/python3.5/site-packages (from python-dateutil->catkin-pkg->rospkg) You are using pip version 9.0.1, however version 19.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command.
porter@porter-Aspire:~$ python3 Python 3.5.6 (default, Mar 29 2019, 21:29:42) [GCC 5.4.0 20160609] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import rospy >>>
