modified stuff to make broken stuff work and deleted stuff not break it, then added mew_cats

Author: John Perry

.gitmodules

@@ -70,9 +70,6 @@
 [submodule "math157"]
 	path = math157
 	url = https://github.com/kedlaya/math157
-[submodule "public_finance_2018_2019"]
-	path = public_finance_2018_2019
-	url = https://github.com/dgdi/public_finance_2018_2019.git
 [submodule "nbgrader-demo"]
 	path = nbgrader-demo
 	url = https://github.com/jhamrick/nbgrader-demo.git
@@ -85,3 +82,6 @@
 [submodule "Hub"]
 	path = Hub
 	url = https://github.com/activeloopai/Hub/
+[submodule "mew_cats"]
+	path = mew_cats
+	url = https://github.com/johnperry-math/mew_cats

index.py

@@ -94,7 +94,7 @@ def consistency_checks(meta, docs):
             '/'
         ), f'doc "{title}" src must end with a slash to signal it is a directory. single files will be supported later ...'
         assert os.path.exists(os.path.join(
-            ROOT, doc['src'])), 'doc "{}" src path does not exist!'
+            ROOT, doc['src'])), 'doc "{}" src path does not exist!' + os.path.join(ROOT,doc['src'])
         assert doc['category'] in cats
         if 'tags' in doc:
             for t in doc['tags']:

index.yaml

@@ -77,19 +77,19 @@ references:
 #  Variational Quantum Eigensolver: gaining intuition about Variational Quantum Eigensolver.
 #  (based on [Quiskit](https://qiskit.org/), the "Quntum Information Science Kit")
 #website: "https://github.com/JavaFXpert/vqe-playground"
----
-id: cocalc-first-steps
-title: First Steps in CoCalc
-src: first-steps/src/
-subdir: first-steps
-license: a20
-thumbnail: thumbs/cocalc-first-steps.png
-preview: "https://cocalc.com/share/db57295bb8c40e9b425cc9be4107cdfc39929c8c/examples/first-steps?viewer=share"
-category: intro
-tags:
-  - intro
-description: |
-  Quick introduction to CoCalc interface and basic functionalities.
+#---
+#id: cocalc-first-steps
+#title: First Steps in CoCalc
+#src: first-steps/src/
+#subdir: first-steps
+#license: a20
+#thumbnail: thumbs/cocalc-first-steps.png
+#preview: "https://cocalc.com/share/db57295bb8c40e9b425cc9be4107cdfc39929c8c/examples/first-steps?viewer=share"
+#category: intro
+#tags:
+#  - intro
+#description: |
+#  Quick introduction to CoCalc interface and basic functionalities.
 ---
 id: "bayes-for-hackers"
 title: "Bayesian Methods for Hackers"
@@ -268,20 +268,20 @@ license: ccbysa
 description: |
   A book about the mathematics needed to use Sage efficiently, illustrated by concrete examples. The first part is accessible to high school and undergraduate students. The remainder is suited for graduate students, teachers, and researchers.
 website: http://sagebook.gforge.inria.fr/english.html
----
-id: math157
-src: math157/
-category: math
-tags:
-  - sage
-title: "Math 157: Intro to Mathematical Software"
-author: "Kiran S. Kedlaya and William Stein"
-thumbnail: thumbs/math157.png
-license: ccbysa
-description: |
-  Course materials from *Math 157: Intro to Mathematical Software*, taught by Kiran Kedlaya at UC San Diego during the winter 2018 quarter.
-  These were adapted from a similar course (Math 152) taught by Kedlaya at UCSD during winter 2017,
-  and ultimately from several courses (Math 480) taught by William Stein at University of Washington.
+#---
+#id: math157
+#src: math157/
+#category: math
+#tags:
+#  - sage
+#title: "Math 157: Intro to Mathematical Software"
+#author: "Kiran S. Kedlaya and William Stein"
+#thumbnail: thumbs/math157.png
+#license: ccbysa
+#description: |
+#  Course materials from *Math 157: Intro to Mathematical Software*, taught by Kiran Kedlaya at UC San Diego during the winter 2018 quarter.
+#  These were adapted from a similar course (Math 152) taught by Kedlaya at UCSD during winter 2017,
+#  and ultimately from several courses (Math 480) taught by William Stein at University of Washington.
 ---
 id: think-complexity-2ed
 src: think-complexity-2ed/code/
@@ -377,32 +377,31 @@ description: |
   *This is the accompanying code for this book.*
 website: http://greenteapress.com/thinkos/
 license: ccbysa
----
-id: scikit-image-tutorials
-src: scikit-image-tutorials/
-title: Scikit-Image Tutorials
-category: datascience
-thumbnail: thumbs/scikit-image.png
-website: "https://github.com/scikit-image/skimage-tutorials"
-preview: "https://share.cocalc.com/share/bf8bd3b9a338f447bf053411c13165e35d66b9a5/examples/scikit-image-tutorials/?viewer=share"
-license: cc0
-description: |
-  A collection of tutorials for the scikit-image package.
----
-id: public-finance-2018-2019
-src: public_finance_2018_2019/
-title: "Public Finance 2018/2019 UCSC"
-author: "Duccio Gamannossi degl'Innocenti"
-website: "https://github.com/dgdi/public_finance_2018_2019"
-license: bsd
-category: finance
-tags:
-  - finance
-description: |
-  This repository stores the [SageMath](http://www.sagemath.org/) notebooks for the course
-  Public Finance 2018/2019 at the Catholic University of the Sacred Heart, Milan.
-
-  Author: [Duccio Gamannossi degl'Innocenti](http://www.dgdi.me)
+#---
+#id: scikit-image-tutorials
+#src: scikit-image-tutorials/
+#title: Scikit-Image Tutorials
+#category: datascience
+#thumbnail: thumbs/scikit-image.png
+#website: "https://github.com/scikit-image/skimage-tutorials"
+#preview: "https://share.cocalc.com/share/bf8bd3b9a338f447bf053411c13165e35d66b9a5/examples/scikit-image-tutorials/?viewer=share"
+#license: cc0
+#description: |
+#  A collection of tutorials for the scikit-image package.
+#---
+#id: public-finance-2018-2019
+#src: public_finance_2018_2019/
+#title: "Public Finance 2018/2019 UCSC"
+#author: "Duccio Gamannossi degl'Innocenti"
+#website: "https://github.com/dgdi/public_finance_2018_2019"
+#license: bsd
+#category: finance
+#tags:
+#  - finance
+#description: |
+#  This repository stores the [SageMath](http://www.sagemath.org/) notebooks for the course
+#  Public Finance 2018/2019 at the Catholic University of the Sacred Heart, Milan.
+#  Author: [Duccio Gamannossi degl'Innocenti](http://www.dgdi.me)
 ---
 id: nbgrader-demo
 title: NBGrader Examples
@@ -467,3 +466,15 @@ description: |
   Hub provides fast access to the state-of-the-art datasets for Deep Learning,
   enabling data scientists to manage them,
   build scalable data pipelines and connect to Pytorch and Tensorflow
+---
+id: mew-cats
+title: Mathematical Explorations With Computer Algebra Technology
+src: mew_cats/
+subdir: mew_cats/
+license: ccbysa
+thumbnail: mew_cats/graphics/mew_cats/mews_parabola_mouse.png
+category: intro
+tags:
+  - intro
+  - math
+author: John Harris, Karen Kohl, and John Perry