Python for Everybody (PY4E)
by Charles R. Severance (aka Dr. Chuck)


🎬 17 sections with multiple video lessons
👨‍🏫 Prof. Dr. Charles R. Severance
✅ Completely free

https://www.py4e.com/lessons

Image Processing in Python
Martin McBride, 2021

Common techniques for using the set() function in Python:

1. Create a set from a list:

my_list = [1, 2, 2, 3, 3, 3]
my_set = set(my_list)


2.Add an item to a set:

my_set = {1, 2, 3}
my_set.add(4)


3.Remove an item from a set by its value:

my_set = {1, 2, 3}
my_set.remove(3)


4.Check if an item is in a set:

my_set = {1, 2, 3}
if 3 in my_set:
print("The item is in the set.")


5.Get the length of a set:

my_set = {1, 2, 3}
set_length = len(my_set)


6.Loop through the items in a set:

my_set = {1, 2, 3}
for item in my_set:
print(item)


7.Get the union of two sets:

set1 = {1, 2, 3}
set2 = {3, 4, 5}
union_set = set1.union(set2)


8.Get the intersection of two sets:

set1 = {1, 2, 3}
set2 = {3, 4, 5}
intersection_set = set1.intersection(set2)

1000 Examples Programming in Python
Gábor Szabó, 2021

In general, the Python standard library includes many built-in functions that are available to use in your code without needing to import any additional modules. Some common examples of built-in functions include:

👉🏻 abs() : Returns the absolute value of a number.

👉🏻 all() : Returns True if all elements of an iterable are True, and False otherwise.

👉🏻 any() : Returns True if any element of an iterable is True, and False otherwise.

👉🏻 bin() : Converts an integer to a binary string.

👉🏻 bool() : Converts a value to a Boolean.

👉🏻 chr() : Returns the string representation of a Unicode character.

👉🏻 dir() : Returns a list of attributes and methods for an object.

👉🏻enumerate(): Returns an enumerate object, which contains a sequence of tuples containing the index and value of each element of an iterable.

👉🏻 filter() : Returns an iterator for elements of an iterable for which a condition is True.

👉🏻 float() : Converts a value to a floating-point number.

👉🏻 format(): Formats a string using format specifiers.

👉🏻 hash() : Returns the hash value of an object.

👉🏻 int() : Converts a value to an integer.

👉🏻 isinstance(): Returns True if an object is an instance of a given type, and False otherwise.

👉🏻 len() : Returns the length of an object.

👉🏻 list() : Converts an iterable to a list.

👉🏻 map() : Returns an iterator that applies a function to each element of an iterable.

👉🏻 max() : Returns the maximum value of an iterable.

👉🏻 min() : Returns the minimum value of an iterable.

👉🏻 next() : Returns the next element of an iterator.

👉🏻 open() : Opens a file and returns a file object.

👉🏻 ord() : Returns the Unicode code point for a character.

👉🏻 print() : Prints a message to the standard output.

👉🏻 range() : Returns a sequence of numbers.

👉🏻 repr() : Returns a string representation of an object.

👉🏻 round() : Rounds a number to a specified number of decimal places.

👉🏻 set() : Creates a set object.

👉🏻 sorted() : Returns a sorted list from an iterable.

👉🏻 str() : Converts a value to a string.

👉🏻 sum() : Returns the sum of elements in an iterable.

👉🏻 type() : Returns the type of an object.

👉🏻 zip() : Returns an iterator that combines elements from multiple iterables.