more_advanced.md

Some More Advanced Python

• Some More Advanced Python
  • Operators
  • Functions
    • Enumerate
    • Bin
    • Chr
    • Ord

Operators

Operator	Function
//	Floor division rounds the result of division down to the nearest whole number.
//=	Performs floor division and equates to the new value. x =// y is the same as x = x // y.

Functions

Enumerate

The enumerate() function in Python is used to iterate over a sequence (such as a list, tuple, or string) while keeping track of the index of each item. It returns an iterator that generates pairs of index-value tuples.

General syntax: enumerate(sequence, start=0), where the sequence parameter is the sequence that you want to iterate over, and start is an optional parameter that specifies the starting index. By default, the starting index is 0.

For example:

fruits = ['apple', 'banana', 'orange']

for index, fruit in enumerate(fruits):
    print(index, fruit)
# returns an iterator that generates pairs of index-value tuples
# returns:
"""
0 apple
1 banana
2 orange
"""

enumerate() is commonly used when you need to iterate over a sequence and also need access to the index of each item. It simplifies the code by eliminating the need to manually manage an index variable.

Bin

bin() is a function that returns binary representation of numbers.

General syntax: bin(number) where number is any integer.

For example:

print(bin(1234))
# returns: 10011010010

Chr

The chr() function returns the character that represents the specified unicode.

General syntax: chr(number) where number is any integer representing a valid Unicode code point.

For example:

print("From " + chr(97) + " to " + chr(122))
# returns: From a to z

Ord

The ord() function returns the number representing the unicode code of a specified character.

General syntax: ord(character) where character is any character as a string which can be represented as a valid Unicode code point.

For example:

print("From " + str(ord("a")) + " to " + str(ord("z")))
# returns: From 97 to 122