diff options
Diffstat (limited to 'python3.html.markdown')
| -rw-r--r-- | python3.html.markdown | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/python3.html.markdown b/python3.html.markdown index 341f0a39..3821d84f 100644 --- a/python3.html.markdown +++ b/python3.html.markdown @@ -37,8 +37,6 @@ Note: This article applies to Python 3 specifically. Check out [here](http://lea 1 + 1 # => 2 8 - 1 # => 7 10 * 2 # => 20 - -# Except division which returns floats, real numbers, by default 35 / 5 # => 7.0 # Result of integer division truncated down both for positive and negative. @@ -47,8 +45,8 @@ Note: This article applies to Python 3 specifically. Check out [here](http://lea -5 // 3 # => -2 -5.0 // 3.0 # => -2.0 -# When you use a float, results are floats -3 * 2.0 # => 6.0 +# The result of division is always a float +10.0 / 3 # => 3.3333333333333335 # Modulo operation 7 % 3 # => 1 @@ -145,13 +143,13 @@ None # => None "etc" is None # => False None is None # => True -# None, 0, and empty strings/lists/dicts all evaluate to False. +# None, 0, and empty strings/lists/dicts/tuples all evaluate to False. # All other values are True bool(0) # => False bool("") # => False bool([]) # => False bool({}) # => False - +bool(()) # => False #################################################### ## 2. Variables and Collections @@ -493,7 +491,7 @@ next(our_iterator) # => "one" next(our_iterator) # => "two" next(our_iterator) # => "three" -# After the iterator has returned all of its data, it gives you a StopIterator Exception +# After the iterator has returned all of its data, it gives you a StopIteration Exception next(our_iterator) # Raises StopIteration # You can grab all the elements of an iterator by calling list() on it. @@ -761,8 +759,13 @@ if __name__ == '__main__': print(b.say('hello')) print(b.fly) +# To take advantage of modularization by file you could place the classes above in their own files, +# say, human.py and bat.py +# to import functions from other files use the following format # from "filename-without-extension" import "function-or-class" + +# superhero.py from human import Human from bat import Bat |