unicode_char_and_strings

#Unicode Characters and Strings
#Computers understands numbers so for PCs to understand letters we need a mapping. the most used map is ASCII
#So there this fucintion that give us number when we put an ASCII character.
print(ord('H'))
print(ord('h'))
print(ord('\n'))
#Thats why AAA < bbb , string wise
#So there was a time that PCs couldnt talk to each other due to different character sets.
#SOLUTION TO THIS was Unicode 9.0 - Universal code with milion of characters
#As internet came out we need to have a way to exchange data. So unicode was abstraction of possible characters
#UTF-16 has max size of 2  bytes. So it can has some issues with it.
#UTF-32 was 4 bytes --> so this making your disk size 4 times less(a 16GB USB is literally 4GB)
#UTF-8 has size 1-4 bytes. so it is recommended for encoding data to be exchanged between systems 
# and it overlaps with ASCII 

#In python 2.7 
# x = b'abc' --> this is string
# x = '0|DAS*' --> this is string
# x =u'0|DAS*' --> This is unicode (and you were defining unicode with letter u )

#In python 3.5.1   (Everything is in unicode inside python3)
# x = b'abc' --> this is type 'bytes'  -- 
#so this is raw data without know what it is encoded.So this is what we manage when we get stream from outside
# x = '0|DAS*' --> this is string
# x =u'0|DAS*' --> This is string