#!/usr/bin/env python

# -*- coding: utf-8 -*-

# Typenprüfung

# ============

# Der Befehl type() aus crashcourse-0

#-------------------------------------

var1 = 10

var2 = 0.20

var3 = "Hallo"

print type(var1)

print type(var2)

print type(var3)

# type() und Klassen

#--------------------

class foo(object):

def __init__(self):

self._data = "Rot"

self.data = "blau"

print "Print inside Class: ", self._data

class foobar(object):

pass

# Instanziierung

fooClass = foo()

foobarClass = foobar()

print(type(fooClass))

# Typenprüfung mittels Type

if type(fooClass) == foo:

print "Jo fooClass is foo"

else:

print "Ups fooClass isn't foo"

if type(foobarClass) == foo:

print "Jo foobarClass is foo"

else:

print "Ups foobarClass isn't foo"

# Typenprüfung mittels isinstance

if isinstance(fooClass, foo):

print "Jo ...shit!!! it is foo"

else:

print "F! it isn't foo"

# Ableitungen von Klassen

class subfoo(foo):

def __init__(self):

super(subfoo, self).__init__()

self.subdata = "Grün"

classSubfoo = subfoo()

print "Subfoo Data: ", classSubfoo.data, classSubfoo.subdata

# Typenprüfung type vs isinstance

if type(classSubfoo) == foo:

print "by type Subfoo is foo"

else:

print "by type subfoo isn't foo"

if isinstance(classSubfoo, foo):

print "by isinstance Subfoo is foo"

else:

print "by isinstance subfoo isn't foo"

# und man kann auch auf die Elternklasse der Elternklasse prüfen

if isinstance(classSubfoo, object):

print "Jo, Subfoo Parent ist object"

else:

print "Subfoo ist not child of object"