在 Ubuntu 16.04 上，我使用以下命令创建了一个环境:
conda create -n ros2 python=2.7
然后像这样激活它:conda activate ros2
但是python --version给出了“Python 3.5.2”
为什么会这样呢？如何将python的版本设置为2.7？
which python 给出“/home/brads/anaconda3/envs/ros2/bin/python”
echo $PATH 给出:“/opt/ros/kinetic/bin:/home/brads/anaconda3/envs/ros2/bin:/home/brads/anaconda3/condabin:/home/Brads/bin:/home/brads/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/local/cuda/bin:/snap/bin"
/opt/ros/kinetic/bin的内容:
binvox2bt edit_octree opencv_waldboost_detector roslaunch-deps rosservice rqt_dep stage
bt2vrml eval_octree_accuracy rosbag roslaunch-logs rossrv rqt_graph tf_remap
catkin_find graph2tree rosboost-cfg rosmake rosstack rqt_image_view view_frames
catkin_init_workspace log2graph rosclean rosmaster rostest rqt_logger_level xacro
catkin_make opencv_annotation rosconsole rosmsg rostopic rqt_plot
catkin_make_isolated opencv_createsamples roscore rosmsg-proto rosunit rqt_shell
catkin_test_results opencv_interactive-calibration roscreate-pkg rosnode roswtf run_selftest
catkin_topological_order opencv_traincascade rosgraph rospack rqt rviz
compare_octrees opencv_version roslaunch rosparam rqt_bag selftest_example
convert_octree opencv_visualisation roslaunch-complete rosrun rqt_console selftest_rostest
which -a python 的输出:
/home/brads/anaconda3/envs/ros2/bin/python
/usr/bin/python
python -c "import sys; print(sys.executable)"的输出: "/usr/bin/python3"
env | 的输出grep "PYTHON"
VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3.5
PYTHONPATH=/opt/ros/kinetic/lib/python2.7/dist-packages:/home/brads/anaconda3/envs/ros2/lib/python2.7/site-packages/
CONDA_PYTHON_EXE=/home/brads/anaconda3/bin/python
最佳答案
问题似乎是我在 conda 之前安装的 virtualenv_wrapper 。我通过 pip uninstall virtualenvwrapper 删除了我还在 ~/.profile 中删除了对它的引用，然后重新登录
关于python - 创建python 2.7 conda环境设置python 3.5，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56134889/