made a few changes to the python_lists.py file

adaptives · adaptives · commit 4b63e2bb910a · 2012-06-16T22:02:38.000+05:30
diff --git a/README b/README
@@ -8,4 +8,7 @@ I am listing the order in which you may want to read these examples. The order b
  - python_numbers.py
  - python_booleans.py
  - python_conversions.py
- - using_modules.py
+ - using_modules.py
+ - string_interpolation.py
+ - python_lists.py
+ 
diff --git a/basic_examples/python_lists.py b/basic_examples/python_lists.py
@@ -1,13 +1,27 @@
 #!/usr/bin/python
-# Filename : python_collections.py
+# Filename : python_lists.py
 
 jvm_langs = ['Java', 'Jython', 'Groovy', 'Scala', 'Jruby']
-print 'I know of ', jvm_langs.__len__, 'langs that can run on the JVM'
+
+#How many JVM langs do you know ?
+print 'I know of ', jvm_langs.__len__(), 'langs that can run on the JVM'
+
+#It's not a good idea to directly us __xxx__ methods
+#A better way is. Remember there is usually a top level function which  
+#is the idoimatic way to access the __xxx__method
+print 'I know of ', len(jvm_langs), 'langs that can run on the JVM'
 
 print 'Oops I forgot Clojure'
 jvm_langs.append('Clojure')
+
+#Let's iterate across the list
 for lang in jvm_langs:
   print lang
+  
+#Can we get the 3rd element of the list ?
+print "The 3rd JVM language is ", jvm_langs[2]
+print "The first 3 JVM languages are ", jvm_langs[:3]
+print "The 2nd to 4th JVM languages are ", jvm_langs[1:4]
 
 print "let's sort these languages"
 jvm_langs.sort()
