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--- scripting:python [2024/09/24 05:32] – jotasandoku
+++ scripting:python [2024/12/23 13:46] (current) – S jotasandoku
@@ Line 14: / Line 14: @@
   netsim.cli.lab_commands(__file__)
+''netsim'' and ''cli'' are a folder and subfolder under ''./lib/python3.12/site-packages/''. The folders are ''packages'' because, together with a lot of .py files, we have the file ''__init__.py''. It contains common logic
+  * Inside netsim/cli/__init__.py:
+    * we have the function ''lab_commands''. Note this function is invoked from the main executable ''netlab''
+    * the standard module ''argparse'' which is a library for common management of interactive cli. See tutorials like  [[https://www.youtube.com/watch?v=aGy7U5ItLRk|this]]
 ----
@@ Line 325: / Line 330: @@
   """)
 \\
-Slicing lists\\
+== SLICING ===
-  print namelist[:2]   # prints up to but not including index 2. So 0 and 1.
+  # [:2] - First 2 elements
+  print("[:2] ->",  x[:2])  # [0, 1]
+  # [2:] - Everything from index 2 onwards
+  print("[2:] ->", x[2:])  # [2, 3, 4, 5, 6, 7, 8, 9]
+  # [-2:] - Last 2 elements
+  print("[-2:] ->", x[-2:])  # [8, 9]
+  # [:-2] - Everything EXCEPT last 2 elements
+  print("[:-2] ->", x[:-2])  # [0, 1, 2, 3, 4, 5, 6, 7]
 \\
 Updating list

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