From 6a46b65507fe41f961bdc09869e16c4a70190c22 Mon Sep 17 00:00:00 2001
From: Daniel Companeetz <dcompane@gmail.com>
Date: Mon, 1 Sep 2025 21:56:16 -0700
Subject: [PATCH] Update Preamble and readme

---
 README.md   | 16 ++++++++++++++++
 preamble.py | 15 +++++++++++++--
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index d075436..3e1efc4 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,9 @@ the command ``pip install mglearn`` in your terminal or ``!pip install mglearn``
 
 
 ## Errata
+
+### Missing import
+
 Please note that the first print of the book is missing the following line when listing the assumed imports:
 
 ```python
@@ -34,6 +37,19 @@ from IPython.display import display
 ```
 Please add this line if you see an error involving ``display``.
 
+### Spacy download language name changed
+As of Spacy v3.0, the syntax is 
+
+```python
+python -m spacy download en_core_web_sm
+```
+
+### IPython.display.set_matplotlib_formats deprecated
+See https://github.com/fangohr/introduction-to-python-for-computational-science-and-engineering/issues/32
+
+[preamble.py](preamble.py) was adjusted to reflect the changes
+
+### Changes in sckit-learn from the first print
 
 The first print of the book used a function called ``plot_group_kfold``.
 This has been renamed to ``plot_label_kfold`` because of a rename in
diff --git a/preamble.py b/preamble.py
index 01a91be..7efaeab 100644
--- a/preamble.py
+++ b/preamble.py
@@ -1,11 +1,22 @@
-from IPython.display import set_matplotlib_formats, display
+# Next is original line.
+# see https://github.com/fangohr/introduction-to-python-for-computational-science-and-engineering/issues/32
+#from IPython.display import set_matplotlib_formats, display
+from IPython.display import display
 import pandas as pd
 import numpy as np
 import matplotlib.pyplot as plt
 import mglearn
 from cycler import cycler
 
-set_matplotlib_formats('pdf', 'png')
+# New block per above url on set_matplotlib_formats problem
+# settings for jupyter book: svg for html version, high-resolution png for pdf
+import matplotlib_inline.backend_inline
+# matplotlib_inline.backend_inline.set_matplotlib_formats('svg', 'png')
+# import matplotlib as mpl
+# mpl.rcParams['figure.dpi'] = 400
+
+matplotlib_inline.backend_inline.set_matplotlib_formats('pdf', 'png')
+#set_matplotlib_formats('pdf', 'png')
 plt.rcParams['savefig.dpi'] = 300
 plt.rcParams['image.cmap'] = "viridis"
 plt.rcParams['image.interpolation'] = "none"