added python installation

Author: gordondavies

matlab.md

@@ -313,4 +313,4 @@ When installing Matlab, a lot of the toolboxes that are available are unlikely t
 
 
 
-##[R tutorial](https://github.com/csmsoftware/Programming-for-data-analysis-tutorial-Matlab-R-Python/blob/master/r.md)
+[R tutorial](https://github.com/csmsoftware/Programming-for-data-analysis-tutorial-Matlab-R-Python/blob/master/r.md)

programming-fundamentals.md

@@ -215,9 +215,9 @@ The definition of an object is a Class, and the instance of that Class is an obj
 An objects functions are known as 'methods' and the variables are known as 'properties'.
 
 ## Control characters
-Different languages use different 'control characters' for defining seperate regions of executable code.
+Different languages use different 'control characters' for defining logical blocks executable code, for example separating out conditionals, operators, and function definitions.
 In Matlab and R, some control characters used are the
-`{}()[]`. In Python, indentation is used to specify control characters.
+`{}()[]`. In Python, indentation and `:` is used to specify logical blocks.
 
 ## Accessing data from disk
  Persistent data is data which when your program finishes (or crashes), still exists on disk.
@@ -382,4 +382,4 @@ out what the hell was going on.
 Keeping your data and code organised well will help you 6 months down the line.
 
 
-- [Matlab tutorial](https://github.com/csmsoftware/Programming-for-data-analysis-tutorial-Matlab-R-Python/blob/master/matlab.md)
+[Matlab tutorial](https://github.com/csmsoftware/Programming-for-data-analysis-tutorial-Matlab-R-Python/blob/master/matlab.md)

python.md

@@ -12,9 +12,12 @@ The situation is made more complicated by different versions (2.x vs 3.x), and d
 Generally use python3.x for new projects, and only use python2.7 if a project you are using does not support Python3.
 
 ### Windows installation
-- See Conda below
+- See Conda/Anaconda below.
 
 ### Mac installation
+
+Python2.7 will be installed system-wide by default on MacOS. However you should install Python3 and use that for your new projects.
+
 - Install [Homebrew](https://brew.sh/)
 Install python3 via homebrew:
 ```
@@ -139,7 +142,21 @@ Notebooks can be saved as json and exported and imported by other users.
 - [plotly](https://plot.ly/) - Interactive charts.
 - [nPYc Toolbox](https://github.com/phenomecentre/nPYc-Toolbox) - NPC built toolbox for NMR and MS import, preprocessing, QC, and generating reports.
 
+### Using Packages
+Once installed to your system-wide or virtualenv python kernel (using pip or conda), packages can be 'imported' and used in your python code.
+
+```
+# python
+
+import numpy as np
+
+a = np.arange(15).reshape(3, 5)
+a.shape
+
+# > (3,5)
+```
+
 - [Numpy tutorial](https://docs.scipy.org/doc/numpy-1.15.1/user/quickstart.html)
 
 
-##[Main page](https://github.com/csmsoftware/Programming-for-data-analysis-tutorial-Matlab-R-Python/blob/master/README.md)
+[Main page](https://github.com/csmsoftware/Programming-for-data-analysis-tutorial-Matlab-R-Python/blob/master/README.md)