Python Advanced List Functions Cheat Sheet-2 with Examples
1. slice() Function
The slice() function is used to get a part (subsection) of a sequence (like list, string, tuple).
Example 1: Slice a list
my_list = [10, 20, 30, 40, 50]
sliced = my_list[slice(1, 4)]
print(sliced)
Output:
[20, 30, 40]
✅ Shorthand using [start:stop:step]
text = "Python"
print(text[0:4]) # 'Pyth'
print(text[::2]) # 'Pto'
Output:
Pyth
Pto
2. round() Function
The round() function rounds a number to the nearest integer or to a specified number of decimal places.
Example 1: Round to nearest integer
x = 4.6
print(round(x))
Output:
5
✅ Round to 2 decimal places:
y = 3.14159
print(round(y, 2))
Output:
3.14
3. max() Function
The max() function returns the largest item in an iterable or the largest of two or more arguments.
Example 1: Max in a list
nums = [5, 9, 2, 10]
print(max(nums))
Output:
10
✅ Max of direct values:
print(max(3, 8, 4))
Output:
8
4. min() Function
The min() function returns the smallest item in an iterable or the smallest of two or more arguments.
Example 1: Min in a tuple
values = (8, 3, 7, 1)
print(min(values))
Output:
1
✅ Min of direct values:
print(min(20, 10, 30))
Output:
10
5. sum() Function
The sum() function returns the sum of all items in an iterable (e.g., list or tuple).
Example 1: Sum of numbers in a list
numbers = [10, 20, 30]
print(sum(numbers))
Output:
60
✅ Sum with a starting value:
print(sum(numbers, 5)) # Starts from 5
Output:
65
6. abs() Function
The abs() function returns the absolute value of a number (i.e., it turns negative numbers into positive).
Example 1:
print(abs(-7))
print(abs(3.5))
Output:
7
3.5
7. ord() Function
The ord() function returns the Unicode code point (integer) of a single character.
Example 1:
print(ord('A'))
print(ord('z'))
Output:
65
122
⚠️ Only one character is allowed
# print(ord('AB')) → Error
8. chr() Function
The chr() function returns the character that corresponds to a Unicode code point.
Example 1:
print(chr(65))
print(chr(122))
Output:
A
z
9. divmod() Function
The divmod() function returns a tuple containing the quotient and the remainder when dividing two numbers.
Example 1:
result = divmod(10, 3)
print(result)
Output:
(3, 1)
✅ Unpack the result:
q, r = divmod(20, 7)
print("Quotient:", q)
print("Remainder:", r)
Output:
Quotient: 2
Remainder: 6
10. id() Function
The id() function returns the identity (memory address) of an object.
Example 1:
x = 100
print(id(x))
y = "hello"
print(id(y))
Output: (Memory addresses will vary)
4305788928
139821882088688
✅ Same ID means same object:
a = 5
b = a
print(id(a) == id(b)) # True
Output:
True
📚 Practice Questions:
📚 Related Topics:
- ➤ Python Arithmetic Operators
- ➤ Basic String Functions
- ➤ Advanced String Functions
- ➤ Basic List Functions
- ➤ Advanced List Functions : Part-1
- ➤ Advanced List Functions : Part-2
- ➤ Basic Tuple Functions
- ➤ Advanced Tuple Functions
- ➤ Basic Dictionary Functions
- ➤ Advanced Dictionary Functions
- ➤ Conditional Statements : if-elif-else
- ➤ Python 'for' Loop
- ➤ Python 'while' Loop
- ➤ Difference between 'for' loop and 'while' loop
- ➤ Introducing Python Functions
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