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pyVarTypes
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pyVarTypes
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#!/usr/bin/env Python
#This shows the different Python variable types
#Numbers
#Number data types store numeric values.
var1 = 1
var2 = 10
#Strings
#Strings are identified as a contiguous set of characters represented in the quotation marks.
#Python allows for either pairs of single or double quotes.
str = 'Hello World!'
print (str) # Prints complete string
print (str[0]) # Prints first character of the string
print (str[2:5]) # Prints characters starting from 3rd to 5th
print (str[2:]) # Prints string starting from 3rd character
print (str * 2) # Prints string two times
print (str + "TEST") # Prints concatenated string
#Lists
#A list contains items separated by commas and enclosed within square brackets ([]).
list = [ 'abcd', 786 , 2.23, 'john', 70.2 ]
tinylist = [123, 'john']
print list # Prints complete list
print list[0] # Prints first element of the list
print list[1:3] # Prints elements starting from 2nd till 3rd
print list[2:] # Prints elements starting from 3rd element
print tinylist * 2 # Prints list two times
print list + tinylist # Prints concatenated lists
#Tuples
#Data Squence similar to lists, but tuples are enclosed within parentheses and and cannot be updated.
Tuples can be thought of as read-only lists.
tuple = ( 'abcd', 786 , 2.23, 'john', 70.2 )
tinytuple = (123, 'john')
print tuple # Prints complete list
print tuple[0] # Prints first element of the list
print tuple[1:3] # Prints elements starting from 2nd till 3rd
print tuple[2:] # Prints elements starting from 3rd element
print tinytuple * 2 # Prints list two times
print tuple + tinytuple # Prints concatenated lists
#Dictionary
# dictionaries are kind of hash table type. They work like associative arrays or hashes found in Perl and consist of key-value pairs.
#A dictionary key can be almost any Python type, but are usually numbers or strings.
#Values, on the other hand, can be any arbitrary Python object.
dict = {}
dict['one'] = "This is one"
dict[2] = "This is two"
tinydict = {'name': 'john','code':6734, 'dept': 'sales'}
print dict['one'] # Prints value for 'one' key
print dict[2] # Prints value for 2 key
print tinydict # Prints complete dictionary
print tinydict.keys() # Prints all the keys
print tinydict.values() # Prints all the values