The Python max is one of the common Built-in function, which is used to find the maximum item of a given object. Or, say, it retunes the highest, largest, or biggest items in a given object.
In this article, we will show you, How to use this Python max function on Tuple, List, Dictionary and Sets with practical examples.
Python max syntax
The basic syntax behind this max function in python is:
# Simple Syntax
max(Iterable)
# Optional key argument
max(Iterable, key)
# max function directly on arguments
max(num1, num2, num3...., numN)
max(num1, num2,......,numN, key)
Generally, key value will be assigned to default value. However, it accepts functions. For example, key = function_name.
Remember, either you can use the built-in functions like len, max or your own custom defined functions.
Python max Example
In this example, we used the max method directly inside a print statement. Below code snippet finds the maximum Numeric Value within the given arguments.
# Python max Function Example
print("Maximum Value = ", max(19, 49, 229, 435, 212, 182))
print("Maximum Value = ", max(212, 58, 12, 142, 192, 502, 12, 172, 182))
print("Maximum Value = ", max(10, 20, 30, 40, 70))
print("Maximum Value = ", max(421, 2, 102, 122))OUTPUT
Python Tuple max Example
This example finds the maximum item in a Tuple using Python max function. It means, finding the largest value in this tuple.
First, we declared an integer tuple, and finding the maximum value inside an integer tuple. Next, we are finding the maximum value inside a string tuple.
NOTE: Finding the maximum in string tuple means, it will return the word that starts with highest Alphabet.
# Python max Function Example
# Python Tuple Max Example
maxTuple = (12, 22, 32, 42, 52, 62, 72,82)
print("\n Original Tuple = ", maxTuple)
print("Maximum Value in a Tuple = ", max(maxTuple))
# Python Tuple Max Example 2
maxStringTuple = ('berry', 'orange', 'banana', 'mango')
print("\n Original String = ", maxStringTuple)
print("Maximum String in a Tuple = ", max(maxStringTuple))OUTPUT
Python List max Example
This Python max function also helps you to find the maximum list item available in a given List.
First, we declared a numeric list, and finds the maximum value in that list using max function. Next, we are fining the maximum item in a string list.
# Python max Function Example
# Python List Max Example
maxList = [187, 20, 42, 212, 502, 12, 172, 182]
print("\n Original List = ", maxList)
print("Maximum Value in a List = ", max(maxList))
# Python List Max Example 2
maxStringList = ['cherry', 'berry', 'banana', 'mango']
print("\n Original String = ", maxStringList)
print("Maximum String in a List = ", max(maxStringList))OUTPUT
Python Dictionary max
The Python max function on Dictionary helps you find the maximum value in Python Dictionary. While working with dictionary
- If you use the keys function along with max key then it will find the maximum key within a dictionary.
- max function along with dictionary values finds the maximum value in dictionary values.
# Python max Function Example
# Python Dictionary Max Example
maxDictionary = {7: 100, 2: 40, 9: 10, 5: 60, 1: 420, 3: 120}
print("\n Original Dictionary = ", maxDictionary)
print("Maximum Key in a Dictionary = ", max(maxDictionary.keys()))
print("Maximum Value in a Dictionary = ", max(maxDictionary.values()))
# Python Dictionary Max Example 2
maxStringDictionary = {1: 'grape', 2: 'banana', 3: 'cherry'}
print("\n Original Dictionary = ", maxStringDictionary)
print("Maximum Key in string Dictionary = ", max(maxStringDictionary.keys()))
print("Maximum Value in String Dictionary = ", max(maxStringDictionary.values()))OUTPUT
Python set max Example
The Python max function also returns the maximum set item from a given set items.
First, we declared an integer set, and finds the maximum set value in it. Next, we are finding the maximum item (starts with highest Alphabet) of a string set.
# Python max Function Example
# Python Set Max Example
maxSet = {19, 49, 229, 435, 212, 502, 172, 182}
print("\n Original Set = ", maxSet)
print("Maximum Value in a Set = ", max(maxSet))
# Python Set Max Example 2
maxStringSet = {'cherry', 'berry', 'kiwi', 'banana', 'grape'}
print("\n Original Set = ", maxStringSet)
print("Maximum String in a Set = ", max(maxStringSet))OUTPUT
Python max key Example
In this example, we show you, How to use the key argument with the max function.
To demonstrate the same, we created a function called sum of list. This function returns the sum of individual digits in number. Please refer Sum of Digits article to understand the logic.
Next, we used this max function as the key. It means, max function will return the List Item whose sum of digits is largest.
# Python max Function Example
def sum_of_list(Number):
Sum = 0
if(Number > 0):
Reminder = Number % 10
Sum = Sum + Reminder
sum_of_list(Number //10)
return Sum
# Python List Max Example
maxList = [187, 20, 42, 212, 502, 12, 172, 182]
print("\n Original List = ", maxList)
print("Maximum Value in a List = ", max(maxList, key = sum_of_list))
# Python Set Max Example 2
maxSet = {19, 49, 229, 435, 212, 502, 172, 182}
print("\n Original Set = ", maxSet)
print("Maximum Value in a Set = ", max(maxSet, key = sum_of_list)OUTPUT
Python maximum key Example 2
In python, you can also use built-in functions as the key value in max function. In this example, we show you, How to use len function as key.
First, we declared three lists with different items. Next, max function return a list whose length is maximum (highest number of items).
Next, we declared three different lists of numeric values. Using this function, we are returning a set with maximum length.
# Python max Function Example
# Python List Max Example
maxList1 = [187, 20, 42, 212]
maxList2 = [212, 58, 12, 142, 192, 502, 12, 172, 182]
maxList3 = [421, 2, 102, 122]
print("Maximum List = ", max(maxList1, maxList2, maxList3, key = len))
# Python Set Max Example 2
maxSet1 = {19, 49, 229, 435, 212, 502, 182, 1200}
maxSet2 = {9, 249, 977}
maxSet3 = {10, 20, 30, 40, 70}
print("Maximum Set = ", max(maxSet1, maxSet2, maxSet3, key = len))
print("Maximum 1 = ", max(maxList1, maxSet1, key = len))
print("Maximum 2 = ", max(maxList1, maxSet2, key = len))
print("Maximum 3 = ", max(maxList1, maxSet3, key = len))
print("Maximum 4 = ", max(maxList2, maxSet1, key = len))
OUTPUT
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