Python built in functions

PYTHON BUILT IN FUNCTIONS
Abs()-Returns the absolute value of a number
For Example, x = abs(-7.25)
All()-Returns True if all items in an iterable object are
true
For Example, mylist = [True, True, True]
x = all(mylist)
Bin()-Returns the binary version of a number
For Example, x = bin(36)
Bool()-Returns the boolean value of the specified
object
For Example, x = bool(1)

Compile()-Returns the specified source as an
object, ready to be executed
For Example, mytext = 'print(55)'
x = compile('mytext', 'test', 'eval')
exec(x)
Complex()-Returns a complex number
For Example, x = complex(3, 5)
Dict()-Returns a dictionary
For Example, x = dict(name = "John",
age = 36, country = "Norway")

Dir()- Returns a list of the specified object's
properties and methods
For Example, class Person:
name = "John"
age = 36
country = "Norway"
print(dir(Person))
Eval()-Evaluates and executes an expression
For Example, x = 'print(55)‘
eval(x)

Exec()-Executes the specified code (or object)
For Example, x = 'name
="John"nprint(name)'
exec(x)
Filter()-Use a filter function to exclude items in a
iterable object
For Example,
ages = [5, 12, 17, 18, 24, 32]
def myFunc(x):
if x < 18:
return False
else:
return True

adults = filter(myFunc, ages)
for x in adults:
print(x)
Float()- Returns a floating point number
For Example, x = float(3)
Format()-Formats a specified value
For Example, x = format(0.5, '%')
Forzenset()-Returns a frozenset object
For Example, mylist =
['apple', 'banana', 'cherry']
x = frozenset(mylist)

Getattr()-Returns the value of the specified
attribute (property or method)
For Example, class Person:
name = "John"
age = 36
country = "Norway"
x = getattr(Person, 'age')
Globals-Returns the current global symbol table
as a dictionary
For Example, x = globals()
print(x)

Hash()-Returns the hash value of a specified object
Hex()-Converts a number into a hexadecimal value
For Example, x = hex(255)
Id()-Returns the id of an object
For Example, x = ('apple', 'banana', 'cherry')
y = id(x)
Input()-Allowing user input
For Example, print('Enter your name:')
x = input()
print('Hello, ' + x)

Len() – Returns the length of an object
For Example, mylist =
["apple", "banana", "cherry"]
x = len(mylist)
List()-Returns a list
For Example, x
= list(('apple', 'banana', 'cherry'))
Locals()- Returns an updated dictionary of the
current local symbol table
For Example, x = locals()
print(x)

Map()-Returns the specified iterator with the
specified function applied to each item
For Example, def myfunc(n):
return len(n)
x = map(myfunc, ('apple', 'banana', 'cherry'))
Max()-Returns the largest item in an iterable
For Example, x = max(5, 10)
Min()-Returns the smallest item in an iterable
For Example, a = (1, 5, 3, 9)
x = min(a)

Ord()-Convert an integer representing the Unicode
of the specified character
For Example, x = ord("h")
Pow()-Returns the value of x to the power of y
For Example, x = pow(4, 3)
Print()-Prints to the standard output device
For Example, print("Hello World")
Range()-Returns a sequence of numbers, starting
from 0 and increments by 1 (by default)
For Example, x = range(6)
for n in x:
print(n)

Set()-Returns a new set object
For Example, x
= set(('apple', 'banana', 'cherry'))
Sort()-Returns a sorted list
For Example, a =
("a", "b", "c", "d", "e", "f", "g", "h")
x = slice(2)
print(a[x])
Tuple()-Returns a tuple
For Example, x
= tuple(('apple', 'banana', 'cherry'))

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Python built in functions

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