Python Word Scramble

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Term	Definition
Type Function	It returns what data type is in use
Assignment	The process of storing a value in variable
Expression	A combination of numbers,symbols or other variables that produce a result when evaluated.
variable name	Must start with letter doesn't use special character
Implicit Conversion	The interpreter automatically converts one data type in to another
None	Special data type in python, used to indicate that things are empty or they returned nothing
Function Advantages	They help to resue code againa and again in a script
Refactoring	Writing readable and under stable clean code
Object Oriented Programming	Object oriented programming is a paradigm , where real world concepts are defined and represented by Classes e.g. Fruits is class and then apple and orange instance of class.An idea is defind can be defined using class
Attributes of class	Attributes are characteristics associated to a type, e.g summer,winter or dry fruit
Methods of class	Functions associated with type, jesa k hum class fruit me aik function bnayen jis ka kam ho optimum temperature find krna fruit k liye
Special methods in class	Special methods are represnted by __(name)__ and python internally call them to use, e.g len function uses special method of __len__
dir() function	print all the attributes and methods of an object
type() function	Ye btata hai k value ki class kiya hai.
type(" ")	Ye batye ga k ye string class hai
upper() method	Ye method kisi bhi string value ko capital letters me convert kr deta hai.
isnumeric()	Ye method humen sirf binary me answer return krta hai ,, check krny k bad k string numbers hai ya nhi
help()	Is function ki madad se hum tamam tafseelat maloom kr sakty hain kisi bhi class ki
instance of class	name = class ()
Defining a class	class : color = "" flavour=""
setting a attribute of class	instancename.attribute = "value"
Dot Notaion	Dot notation is waja se hum class k kisi bhi method ya attribute tak ponch sakty hain aur uski value set kr sakty and retrieve bhi kr sakty
methods in class	Kisi bhi object se koi action , jesa k aik instance organe hai aur us se hum ny orange juice bnana hai to hum method use kren gy
method in class syntax	def func_name (self) ..................... return self
how to use attribute inside method	Attribute ko agr method k andar istimal krna hai to self.attribute likhna hoga
instance variable	instance variable wo hoty hain jinki value mukhtalif hoti hai different instance k liye
constructor method	In constructor method we define attributes inside method function , so that we dont forget what are the attirbutes of a class, we can create the instance and attribute write away
Syntax of constructor method	def __init__(self,color,flavor ): self. color = color self.flavor = flavour
instance using constructor method	jonnagold = Apple ("red", "Sweet")
when str method in class is useful	str method is useful, when you have need to print instance. def __str__(Self) retur "This apple is sweet "
Doc string	Doc string is brief text which explain what something does """" write what you want to explain
STDIN	I/O stream for input
STDOUT	I/O stream for output
STDERR	STDERR displays output specifically for error messages.
I/O Streams	Ways to give programme and recive informnation from programme
SHell	Command line interface used to interact with operating system
echo	It is used to print text in linux shell
Environment Variables	Variables used inside the sheel environment are called environment variables
Command Line Arguments	These are parameters that are passed to a program when it started
Where Command line arguments stored	The list of arguments are stored in sys module
Exit status	The value returned by a program to the shell
wc command linux	It prints value of lines,word and characters for our pyhton script
Finish successfully code	echo $?
Unicode standard used to convert an array of bytes into a string	UTF-8
copy	Awesome! Calling this method of the os.environ dictionary will copy the current environment variables to store and prepare a new environment.
Log Files
None	In python variable with no value is none and its not the samething like 0 , its just that it has no value
Objects in Python	Objects are way of organizing code in python and break things down to make it easier to think about complex ideas
Why use classes and objects
Edge Cases	Inputs to our code that produce unexpected results and are found at the extreme ends of ranges of input we imagine our programms will typically work with
Casting	Using casting we can change types by using key words , int,str,float but you cant reverse cast values . However it can be done when written inside quotes
immutable type	String is immutable type,you cannot change string content after creation
String Concatenation	Plus operator concatenates two strings
Extend List	existing list.extend(newlist or element ) will extend the existing list
Sort List	.sort() only works on integers or strings seperately but cannot sort them when the list contains combination of numbers and strings
Tuples	A tuple is similar to list but you create them with paranthesis instead of square brackets. A tuple is immutable while the list is mutable
Dictionaries	Dictionaries are usefull when we have to give structure to data , like name, favorite sports and place of living.These types are keys and can be used to change values
Show Keys of Dictionaires	Mydict.keys() will show all the keys in the dictionary
Difference between compiler and interpreter	Compilers take the entire source code and produce object code/executable code while the interpreter execute the code line by line.
iteration on file object	We can iterate over file object using open but cannot strip it for that we have to use strip.lines() which gives a list in return

Created by: moixxrox