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Here are some Python tips to keep in mind that will help you write clean, efficient, and bug-free code. Python Tips for Effective Coding 1. Code Readability and PEP 8 Always aim for clean and readable code by following PEP 8 guidelines. Use meaningful variable names, avoid excessively long lines (stick to 79 characters), and organize imports properly. 2. Use List Comprehensions List comprehensions are concise and often faster than regular for-loops. Example: squares = [x**2 for x in range(10)] instead of creating an empty list and appending each square value. 3. Take Advantage of Python’s Built-in Libraries Libraries like itertools, collections, math, and datetime provide powerful functions and data structures that can simplify your code. For example, collections.Counter can quickly count elements in a list, and itertools.chain can flatten nested lists. 4. Use enumerate Instead of Range When you need both the index and the value in a loop, enumerate is a more Pyth
How to Delete an Item from a Set in Python: Best Example
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Set is a built-in data type in Python. Furthermore, it is an unordered collection without duplicate items. Here are the two methods that explain to delete an item from a Set.
Methods to delete an item from a Set
- discard
- remove
Discrd Vs. Remove
- discard() will not raise an error if the item to remove does not exist.
- The remove() will raise an error if the item does not exist.
Explanation to discard and remove methods
Python program:
#Prints all the Set items
food = {"pasta", "burger", "hot dog", "pizza"}
print(food)
# Prints the Set items without pasta
food.discard("pasta")
print(food)
# Prints the Set items without burger and pasta
food.remove("burger")
print(food)
# The next two lines try to remove an item that isn't in the set!
food.discard("pasta") # this will not report an error
food.remove("pasta") # this will report an error
The output:
{'pasta', 'burger', 'pizza', 'hot dog'}
{'burger', 'pizza', 'hot dog'}
{'pizza', 'hot dog'}
Traceback (most recent call last):
File "main.py", line 12, in <module>
food.remove("pasta") # this will report an error
KeyError: 'pasta'
** Process exited - Return Code: 1 **
Press Enter to exit terminal
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