I just installed PyTorch and am trying to use it in my Jupyter Notebook. In the notebook, when I run `conda list`, I see the following:

```
# packages in environment at /Users/whoiam/opt/anaconda3:
#
# Name                    Version                   Build  Channel
_ipyw_jlab_nb_ext_conf    0.1.0                    py37_0  
alabaster                 0.7.12                   py37_0  
anaconda                  2019.10                  py37_0  
anaconda-client           1.7.2                    py37_0  
anaconda-navigator        1.9.7                    py37_0  
anaconda-project          0.8.3                      py_0 
...
python                    3.7.4                h359304d_1  
python-dateutil           2.8.0                    py37_0  
python-libarchive-c       2.8                     py37_13  
python.app                2                        py37_9  
pytz                      2019.3                     py_0 
...

```

But, in the command line of my terminal, I see this:

```
(base) whoiam@MacBook-Pro Downloads % conda list
# packages in environment at /Users/whoiam/anaconda3:
#
# Name                    Version                   Build  Channel
_ipyw_jlab_nb_ext_conf    0.1.0                    py37_0  
alabaster                 0.7.12                   py37_0  
anaconda                  2019.10                  py37_0  
anaconda-client           1.7.2                    py37_0  
anaconda-navigator        1.9.7                    py37_0  
anaconda-project          0.8.3                      py_0  
...
python                    3.7.4                h359304d_1  
python-dateutil           2.8.0                    py37_0  
python-libarchive-c       2.8                     py37_13  
python.app                2                        py37_9  
pytorch                   1.3.0                   py3.7_0    pytorch
pytz                      2019.3                     py_0  
...

```

I have a few questions:

1. Why is one environment at `whoiam/opt/anaconda3` and the other at `whoiam/anaconda3`?
2. Should I be updating the Jupyter Notebook or the Command Line path?
3. How do I update either path?
4. Through which should I install packages to avoid this issue?