#Strings
data = 'hello world'
print(data[0])
print(len(data))
print(data)

#Numbers
value=123.1
print(value)
value=10
print(value)

#Boolean
a=True
b=False
print(a,b)

a=10
b=15
print(a>b)

#Multiple Assignment
a,b,c=1,2,3
print(a,b,c)

#No value
a=None
print(a)

#If-Then-Else Conditional
value=120
if value==99:
   print('That is fast')
elif value>200:
  print("That is too fast")
else:
  print("That is safe")
 
#For-Loop
for i in range(10):
  print('Numbers:', i)
 
#While-Loop
i=0
while i<10:
  print(i)
  i+=1
 
#tuples, list, dictionaries
#tuples
a=(1,2,3)
print(a)
#list
mylist=[1,2,3]
print("Zeroth Value:", mylist[0])
mylist.append(4)
print("List Length:", len(mylist))
for value in mylist:
  print(value)
#dictionaries
mydict={'a':1,'b':2,"c":3}
print(("A value: %d")%mydict['a'])
mydict['a']=11
print(("A value: %d") % mydict['a'])
print(("Keys: %s") % mydict.keys())
print(("Values: %s") % mydict.values())
for key in mydict.keys():
  print(mydict[key])
 
#Sum function
def mysum(x,y):
  return x+y
#Test sum function
result=mysum(4,5)
print(result)

#Class
class MyClass:
    variable = "blah"
    def function(self):
        print("This is a message inside the class.")
myobjectx = MyClass()
print(myobjectx.variable)
myobjectx.function()