Python len() Method
The len() function returns the length of the object. It returns total elements in an iterable or the number of chars in a string.
Syntax:
len(object)Parameters:
object: Required. An iterable or string.
Return Value:
Returns an integer value indicating total elements or chars.
The following example demonstrates the len() method.
Example: len()
print("Total Elements in list: ", len([1,2,3,4,5]))
print("Total Elements in tuple: ",len((1,2,3,4,5)))
print("Total Elements in set: ",len({1,2,3,4,5}))
print("Total Elements in dict: ",len({1:'one',2:'two',3:'three',4:'four',5:'five'}))
print("string length : ", len("Hello World"))
print("byte length: ",len(b"12345"))
print("range() length: ",len(range(0,10)))
Output
Total Elements in list: 5
Total Elements in tuple: 5
Total Elements in set: 5
Total Elements in dict: 5
string length: 11
byte length: 5
range() length: 10
It throws the TypeError if the specified value is bool or int.
Example: len()
print(len(True))
print(len(100))
Output
TypeError: object of type 'bool' has no len()
TypeError: object of type 'int' has no len()