Basic of If else,loops in python

1) If else is used to write a conditional statement in python.
2) Loops are used to iterate some statement until condition false or elements on which it iterates are completed.
3) 2 types one For loop second is While loop



Comments

Post a Comment

Popular posts from this blog

All about function and arbitrary number of argument and named parameter in Python.

Image
1) The function is a code of block which you call again and again and there is no need to write the same code again and again. There are 2 types of function inbuilt and custom made. len() ,sys.exit(). 2) Also when you write a function you need to write code inside this and if you do not want to write a code then simply put pass as word inside this. 3) There are several types of functions parametrize an optional argument in python.Also, you have to remember that id optional argument is last in series or place before default parameter you not able to write this. 4) Also for the optional parameter, you are able to assign none value. Which is a special value. 5) Also sometimes you need an arbitrary number of argument to functions by * before the variable name. It is tuple type and before that you able to write optional and default parameter also. 6) There is also another type where you can pass variable data by using named parameter and in that function, you need to use ** two aster...
Read more

Explain string type In python

Image
1) Internally string is an array and treat as array of char.  2) Is immutable object and created with single quotes or double quotes.  3) You can use escape char in between string. If you use r letter before string then its meaning is raw string.  4) Formatting also applied on string in python 3.6. Curly braces are replaced by format method value in python 3 version.  >>> n=42  >>>  s=this is my string. No is {}.format(n) >>> print(s) this is my string. No is 42 5) We can not change the or assign value in between string be coz string is immutable.  Ex. s[1]=j -- is impossible. 
Read more

Mutable And Immutable types in python?

Image
1) Everything in python 3 objects. So Every object has Id, type and value and id uniquely identifies an object and it can not change throughout life of object 2) Also, type identifies a class of an object and also it cannot change throughout the life of an object. 3) Values are the content of the object. 4) Most Fundamental types in python are immutable -number, string, tuples 5) Mutable object change value but immutable may not you can verify this by using id method so if it is changed then it is immutable or if not then it’s mutable.
Read more