files for modules/packages prac

advanced_topics/modules_and_packages/fsleyes/__init__.py

+#!/usr/bin/env python
+
+from fsleyes.main import fsleyes_main

advanced_topics/modules_and_packages/fsleyes/main.py

+#!/usr/bin/env python
+
+def fsleyes_main():
+    print('Woo, you\'ve started a mock version of FSLeyes!')

advanced_topics/modules_and_packages/module_and_script.py

+#!/usr/bin/env python
+
+
+import sys
+
+
+def mul(a, b):
+    """Multiply two numbers together. """
+    return a * b
+
+
+def main(args=None):
+    """Read in command line arguments,
+    and call the mul function.
+    """
+    if args is None:
+        args = sys.argv[1:]
+
+    if len(args) != 2:
+        print('Usage: module_and_scripy.py a b')
+        sys.exit(1)
+
+    a = float(args[0])
+    b = float(args[1])
+
+    print('{} * {}: {}'.format(a, b, mul(a, b)))
+
+
+# If this module is executed as a
+# script, call the main function
+if __name__ == '__main__':
+    main()