- Moved optional pip packages to requirements_extra.txt

- Added documentation in Coding-Introduction.md for how to enable Jupyter notebook support

docs/source/Coding/Coding-Introduction.md

@@ -38,10 +38,38 @@ That is, enter `evennia.` and press the `<TAB>` key. This will show you all the
 available at the top level of Evennia's  "flat API". See the [flat API](../Evennia-API) page for more
 info on how to explore it efficiently.
 
+#### Jupyter Notebook Support
+
+You can now explore evennia interactively with jupyter notebooks. There are a few extra steps that must be taken in order for this to work:
+
+    # [open a new console/terminal]
+    # [activate your evennia virtualenv in this console/terminal]
+    cd evennia
+    pip install -r requirements_extra.txt # this installs optional, but necessary modules for this to work.
+    cd mygame # make sure you are in root of your grame
+    evennia shell_plus --notebook& # this will start the notebook in the background
+
+Open an existing, or create, a notebook and in the first cell you must run:
+
+```python
+import evennia
+evennia._init()
+```
+
+This will initialize all module level variables located in `evennia.__init__`. 
+Now you have the same support as `evennia shell`, but in a more visual and persistent form.
+
+*It is important to remember, everytime the kernel restarts within a notebook you must first run
+`evennia._init()`*
+
+
 You can complement your exploration by peeking at the sections of the much more detailed 
 [Evennia Component overview](../Components/Components-Overview). The [Tutorials](../Howto/Howto-Overview) section also contains a growing collection
 of system- or implementation-specific help.
 
+
+
+
 ### Use a python syntax checker
 
 Evennia works by importing your own modules and running them as part of the server. Whereas Evennia

requirements.txt

@@ -8,12 +8,9 @@ pytz
 djangorestframework >= 3.10.3, < 3.12
 django-filter >= 2.2.0, < 2.3
 django-sekizai
-django-extensions >= 3.1.0
 inflect
 autobahn >= 17.9.3
 lunr == 0.5.6
-ipython >= 7.19.0
-jupyter == 1.0.0
 
 # try to resolve dependency issue in py3.7
 attrs >= 19.2.0

requirements_extra.txt

@@ -14,3 +14,8 @@ service_identity >= 18.1.0
 # AWS-storage contrib 
 boto3 >= 1.4.4
 botocore >= 1.15
+
+# Jupyter Notebook support
+jupyter >= 1.0.0
+ipython >= 7.19.0
+django-extensions >= 3.1.0