1. Python

Built-in Functions in Python

Built-in functions are those Python Functions which are built into the language itself, meaning Python Core Developers have designed/implemented these functions into language. These functions can be really useful.
Below is a table listing all of Built-in Functions in Python with examples for each one.

Built-in FunctionDescription
abs()Returns absolute value of number
all()Only returns true if all elements inside an iterable object are true
any()Returns true if any element inside an iterable object is true
ascii()Returns a readable version of an object
bin()Returns binary version of number
bool()Returns boolean valued of object
bytearray()Returns array of bytes
bytes()Return a bytes object
callable()Returns true only if specified object is callable, false otherwise
chr()Returns a character from specified unicode
classmethod()Converts a method into class method
compile()Returns a Python Code Object
complex()Takes in two numbers and return a complex number
delattr()Delete specified attribute from an object
dict()Returns a Python Dictionary
dir()Return a list of specified object’s properties and methods
divmod()Returns quotient and remainder of dividing two numbers like num1/num2
enumerate()Takes in a Python Collection and return an enumerate object
eval()Evaluates/Executes an expression
exec()Executes the specified object
filter()Using a filter function – exclude items from an iterable object
float()Returns floating point number
format()Returns formatted form of some value passed in it
frozenset()Returns a Frozenset object
getattr()Returns value of specified attribute
globals()Return global symbol table as dictionary
hasattr()Returns True if and only if specified object have specified attribute
hash()Returns hash value of specified object
help()Executes help function
hex()Converts a number to equivalent hexadecimal value
id()Returns id of an object
input()Takes in User Input
int()Converts passed number to integer and return it
isinstance()Returns True if specified object is an instance of specified class
issubclass()Returns True if specified class is an instance of some other specified class
iter()Returns an iterable object in Python
len()Returns length of object
list()Returns a Python list
locals()Returns a Python Dictionary containing current local symbol table
map()Returns an iterator with some specified function applied to each item
max()Returns largest item in an iterable object
memoryview()Returns a memory view object
min()Returns smallest item inside an iterable object
next()Returns next item in an iterable
object()Returns a new Python Object
open()Opens file first and then returns a File Object
oct()Converts number into its equivalent octal form
ord()Convert an integer representing the Unicode of the specified character
pow()Returns value of x to the power of y
print()Prints some value out
property()Gets, Sets, or deletes property of some specified object
range()Returns a sequence of numbers starting from zero and incrementing by 1 each time
repr()Returns a version of an object which is Human Readable
reversed()Return a reversed iterator version of iterator being passed in
round()Does Mathematical Rounding of a number
set()Returns a Set Object
setattr()Set some attribute of an object
sorted()Sort the sequence object type in Python
@staticmethod()Converts a method into static method
slice()Return some slice of an object
str()Returns a Python String Object
sum()Adds together items in an iterator and returns resulted value
super()Returns an object which represents parent class
tuple()Returns a Tuple Python Object
vars()Returns __dict__ property of object
zip()Make an iterator that aggregates elements from each of the iterables.

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