diff options
| -rw-r--r-- | python.html.markdown | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/python.html.markdown b/python.html.markdown index 114aa019..a6e54e4f 100644 --- a/python.html.markdown +++ b/python.html.markdown @@ -52,7 +52,7 @@ not False #=> True "Hello " + "world!" #=> "Hello world!" # A string can be treated like a list of characters -"This is a string"[0] #=> 'H' +"This is a string"[0] #=> 'T' # None is an object None #=> None @@ -120,10 +120,10 @@ filled_dict = {"one": 1, "two": 2, "three": 3} filled_dict["one"] #=> 1 # Get all keys as a list -filled_dict.keys() +filled_dict.keys() #=> ["three", "two", "one"] Note - Dictionary key ordering is not guaranteed. Your results might not match this exactly. # Get all values as a list -filled_dict.values() +filled_dict.values() #=> [3, 2, 1] Note - Same as above regarding key ordering. # Check for existence of keys in a dictionary with in "one" in filled_dict #=> True @@ -158,6 +158,7 @@ filled_set | other_set #=> set([1, 2, 3, 4, 5, 6]) some_var = 5 # Here is an if statement. INDENTATION IS SIGNIFICANT IN PYTHON! +# prints "some var is smaller than 10" if some_var > 10: print "some_var is totally bigger than 10." elif some_var < 10: # This elif clause is optional. @@ -165,13 +166,27 @@ elif some_var < 10: # This elif clause is optional. else: # This is optional too. print "some_var is indeed 10." -# For loops iterate over lists + +""" +For loops iterate over lists +prints: + dog is a mammal + cat is a mammal + mouse is a mammal +""" for animal in ["dog", "cat", "mouse"]: print "%s is a mammal" % animal # You can use % to interpolate formatted strings -# While loops go until a condition is no longer met. +""" +While loops go until a condition is no longer met. +prints: + 0 + 1 + 2 + 3 +""" x = 0 -while x < 10: +while x < 4: print x x += 1 # Short hand for x = x + 1 @@ -252,7 +267,7 @@ class Human(object): # A method. All methods take self as the first argument, including the initializer def say(self, msg): - return "%s: %s" % (this.name, msg) + return "%s: %s" % (self.name, msg) # A class method is shared among all instances @classmethod @@ -261,7 +276,7 @@ class Human(object): # Static methods are called without a parameter reference to the class or instance @staticmethod - def grunt(self): + def grunt(): return "*grunt*" |