'Working with Python scripts' ready

docs/morning_session/overview.md

@@ -21,7 +21,7 @@ This module introduces the fundamentals of Python programming language.
 |---------------|-------------------------------|
 | 09:00-10:00   | [Using the Python interpreter](using_the_python_interpreter.md) [The way of the program](the_way_of_the_program.md) |
 | 10:00-10:15   | Break                         |
-| 10:15-11:00   | Using a Python script, variables|
+| 10:15-11:00   | [Working with Python scripts](working_with_python_scripts.md), variables|
 | 11:00-11:15   | Break                         |
 | 11:15-12:00   | Exercises                     |
 | 13:00-14:00   | Functions and Modules         |

docs/morning_session/working_with_python_scripts.md

@@ -0,0 +1,75 @@
+# Working with Python scripts
+
+!!!- info "Learning objectives"
+
+    * To be able to create a Python script
+    * To be able to run a Python script
+
+???- question "For teachers"
+
+    Teaching goals are:
+
+    * Learners have created a Python script
+    * Learners have run a Python script
+
+    Lesson plan:
+
+    * 5 mins: prior knowledge
+    * 5 mins: presentation
+    * 15 mins: challenge
+    * 5 mins: feedback
+
+## Overview
+
+To run code, we use text files that are run as if each line 
+was typed in into the Python interpreter. Such text files
+that run (interpreted) code are called 'scripts'. 
+
+In this session, we create and run some simple Python scripts.
+
+## Exercises
+
+### Exercise 1: create a Python script
+
+- Learning goal: 
+  - to use a text editor in the terminal
+  - to create, edit and save a file in the terminal
+  - to create a trivial Python script to work on
+
+On Rackham, create a file called `hello_world.py`,
+using a text editor or Linux commands.
+The UPPMAX page on text editors is [here](http://docs.uppmax.uu.se/software/text_editors/).
+A free online book about the Linux can be found [here](https://linuxcommand.org/tlcl.php).
+
+!!! tip "Use the text editor 'GNU nano'"
+
+Copy-paste the following content into the script:
+
+```
+print('Hello, world!')
+```
+
+Save the script.
+Close the text editor.
+Verify that the script has its contents saved.
+
+### Exercise 2: run a Python script
+
+- Learning goal: to be able to run a Python script.
+
+Read the UPPMAX page on running a Python script, [here](http://docs.uppmax.uu.se/software/python/#running-python)
+
+Run the Python script you just created.
+
+### Exercise 3:
+
+- Learning goal: 
+  - repeat creating a Python script
+  - to observe that an expression result is not shown on-screen by default
+
+Of the Python book [How to Think Like a Computer Scientist: Learning with Python 3](https://openbookproject.net/thinkcs/python/english3e/index.html),
+go back to section 1.12 and do exercise 6.
+
+## Links
+
+ * [How to Think Like a Computer Scientist: Learning with Python 3](https://openbookproject.net/thinkcs/python/english3e/index.html)