Merge pull request #95 from andrewdelman/ecco_access_updates

corrected setup instructions in ecco_access intro tutorial

Author: andrewdelman

ecco_access/ecco_access_tutorials/ECCO_access_intro.ipynb

@@ -7,7 +7,7 @@
    "source": [
     "# The *ecco_access* Python \"package\": accessing ECCO output on PO.DAAC\n",
     "\n",
-    "Andrew Delman, updated 2024-10-15\n",
+    "Andrew Delman, updated 2024-10-17\n",
     "\n",
     "[Introduction](https://ecco-v4-python-tutorial.readthedocs.io/ECCO_access_intro.html#Introduction)\\\n",
     "[Setting up *ecco_access*](https://ecco-v4-python-tutorial.readthedocs.io/ECCO_access_intro.html#Setting-up-ecco_access)\\\n",
@@ -39,24 +39,31 @@
     "- Download the *ecco_access* folder by clicking on [this link](https://download-directory.github.io/?url=https%3A%2F%2Fgithub.com%2FECCO-GROUP%2FECCO-v4-Python-Tutorial%2Ftree%2Fmaster%2Fecco_access).\n",
     "\n",
     "\n",
-    "If you downloaded the folder (second option), make sure the downloaded folder is unzipped/extracted and rename it to `ecco_access`. Then you need to make it accessible to your notebook, either by: \n",
+    "If you downloaded the folder (second option), make sure the downloaded folder is unzipped/extracted and rename it to `ecco_access`. \n",
     "\n",
-    "### Moving the folder to a directory in your Python path\n",
+    "Then you need to make it accessible to your notebook, either by: \n",
+    "\n",
+    "### Adding the `ecco_access` parent directory to your Python path\n",
+    "\n",
+    "The `ecco_access` parent directory is the directory containing `ecco_access`. Add it to your Python path with the following Python code in each notebook where `ecco_access` is used:\n",
     "\n",
     "```\n",
     "import sys\n",
-    "print(sys.path)\n",
-    "\n",
-    "['', '/srv/conda/envs/notebook/lib/python311.zip', '/srv/conda/envs/notebook/lib/python3.11',\n",
-    " '/srv/conda/envs/notebook/lib/python3.11/lib-dynload', '/srv/conda/envs/notebook/lib/python3.11/site-packages']\n",
+    "sys.path.append({parent_dir})\n",
     "```\n",
     "\n",
-    "In this example, `ecco_access` could be moved to the `/srv/conda/envs/notebook/lib/python3.11/site-packages/` directory in your Python path. \n",
-    "\n",
     "Or:\n",
     "\n",
     "### Put in a symlink to the `ecco_access` location from your current notebook directory.\n",
     "\n",
+    "A symlink (or soft link) from the directory containing your notebooks will allow you to use the `ecco_access` libraries from any notebook in that directory. Put in the link with the following code in your terminal window:\n",
+    "\n",
+    "```\n",
+    "ln -s {parent_dir}/ecco_access {current_notebook_dir}/ecco_access\n",
+    "```\n",
+    "\n",
+    "or by running the following Python code once:\n",
+    "\n",
     "```\n",
     "import os\n",
     "os.symlink('{location_of_ecco_access}/ecco_access','{current_notebook_dir}/ecco_access',target_is_directory=True)\n",