fix build issue

README.md

@@ -1,7 +1,11 @@
 # Python Data Science Handbook
 
-[![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/jakevdp/PythonDataScienceHandbook/master?filepath=notebooks%2FIndex.ipynb)
-[![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/jakevdp/PythonDataScienceHandbook/blob/master/notebooks/Index.ipynb)
+---
+
+> [!WARNING]
+> This repository installs updated packages, because the original specs do not work any more. So, some examples might no longer work!
+
+---
 
 This repository contains the entire [Python Data Science Handbook](http://shop.oreilly.com/product/0636920034919.do), in the form of (free!) Jupyter notebooks.
 

environment.yml

@@ -3,5 +3,17 @@ channels:
   - conda-forge
 dependencies:
   - python=3.5
-  - pip:
-    - -r requirements.txt
+  - numpy<2
+  - libgfortran=3
+  - matplotlib
+  - pandas<1
+  - scikit-learn<1
+  - scikit-image<1
+  - scipy<1
+  - pillow
+  - seaborn<1
+  - line_profiler
+  - memory_profiler
+  - numexpr
+  - pandas-datareader
+  - netcdf4