Kursusindhold

Introduction to Python (copy)

1. Getting Started

First Steps Comments Simple Math: Add & Subtract Simple Math: Multiply & Divide Recap

2. Variables and Types

Data Types Storing Data in Variables Variable Naming Rules Using Variables String Indexing and Length String Slicing and Concatenation Challenge: Inventory Sorting Capstone Recap

3. Conditional Statements

Boolean Data Type Combining Conditions Challenge: Boolean Logic Membership Operators and Type Comparisons Conditional Expressions Challenge: Product Management Capstone Recap

4. Other Data Types

Lists and List Methods Nested Lists Challenge: List Management Tuples and Tuple Methods Tuple Operations Challenge: Tuple Operations Dictionaries and Dictionary Methods Challenge: Pricing Adjustment Capstone Recap

5. Loops

For Loops While Loops Range Function Iterating Over Indexes Challenge: Sales and Shipments Nested Loops Challenge: Automating Stock Control Challenge: Solo Coding Capstone Recap

6. Functions

Built-in Functions Challenge: Zip and Sort Functions User Defined Functions List Behavior in Functions Functions with no Return Modifying Functions Challenge: Product Revenues Capstone Recap

Combining Conditions

Building on your understanding of booleans, we will now explore how to combine multiple conditions in Python. This skill allows your programs to make even more nuanced decisions by checking multiple criteria simultaneously. Watch as Alex combines multiple conditions to make better decisions during grocery store operations:

Understanding Combined Conditions

In Python, you can combine conditions using logical operators such as and, or, and not. These operators allow you to create compound conditions that evaluate multiple Boolean expressions.

and: Returns True if both conditions are True;
or: Returns True if at least one condition is True;
not: Returns True if the condition is False (and vice versa).

Example Application

Let's combine conditions to check if an item is both a perishable good AND high in stock using the and operator:


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# Define the perishable and stock status conditions
is_perishable = True
item_quantity = 110
perishable_highStockRisk = 100

# Using the (and) operator to combine two conditions
# The first condition (`is_perishable`) checks if the item is perishable
# The second condition (`item_quantity >= perishable_highStockRisk`) checks if the item is high in stock 
# The `consider_discount` variable will become `True` only if both conditions are `True`
consider_discount = is_perishable and (item_quantity >= perishable_highStockRisk)

# Print the result
print("Is the item perishable and high in stock?", consider_discount)

Now, let's combine conditions to check if an item is either a seasonal item OR if it is a holiday item using the or operator:


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# Define the seasonal and holiday status conditions 
seasonal_item = False
holiday_item = True

# Combine the conditions to check if the item is seasonal or discounted
# (`temporary_stock`) will become `True` if either condition `seasonal_item` OR `holiday_item` is `True`
temporary_stock = seasonal_item or holiday_item

# Print the result
print("Is this a seasonal or holiday item?", temporary_stock)

Finally, let's combine conditions to check if an item does NOT need repricing using the not operator:


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# Define the item status condition
is_perishable = True

# Use the `not` operator to check if the item is NOT perishable
long_shelf_life = not is_perishable

# Print the result
print("Does the item need to be sold quickly?", long_shelf_life)

Opgave

Swipe to start coding

Evaluate if an item is discounted or low in stock to determine its eligibility for promotion.

Define a boolean variable movingProduct that is True if the item is either discounted or low in stock, using logical operators.
Create a boolean variable promotion that is True if the item is not discounted and sufficiently stocked.
Print the message: Is the item eligible for promotion? <promotion>.

Output Requirements

Print whether the item is eligible for promotion: Is the item eligible for promotion? <promotion>.

Løsning

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Sektion 3. Kapitel 2

Combining Conditions

Understanding Combined Conditions

In Python, you can combine conditions using logical operators such as and, or, and not. These operators allow you to create compound conditions that evaluate multiple Boolean expressions.

and: Returns True if both conditions are True;
or: Returns True if at least one condition is True;
not: Returns True if the condition is False (and vice versa).

Example Application

Let's combine conditions to check if an item is both a perishable good AND high in stock using the and operator:


              12345678910111213
            
# Define the perishable and stock status conditions
is_perishable = True
item_quantity = 110
perishable_highStockRisk = 100

# Using the (and) operator to combine two conditions
# The first condition (`is_perishable`) checks if the item is perishable
# The second condition (`item_quantity >= perishable_highStockRisk`) checks if the item is high in stock 
# The `consider_discount` variable will become `True` only if both conditions are `True`
consider_discount = is_perishable and (item_quantity >= perishable_highStockRisk)

# Print the result
print("Is the item perishable and high in stock?", consider_discount)

Now, let's combine conditions to check if an item is either a seasonal item OR if it is a holiday item using the or operator:


              12345678910
            
# Define the seasonal and holiday status conditions 
seasonal_item = False
holiday_item = True

# Combine the conditions to check if the item is seasonal or discounted
# (`temporary_stock`) will become `True` if either condition `seasonal_item` OR `holiday_item` is `True`
temporary_stock = seasonal_item or holiday_item

# Print the result
print("Is this a seasonal or holiday item?", temporary_stock)

Finally, let's combine conditions to check if an item does NOT need repricing using the not operator:


              12345678
            
# Define the item status condition
is_perishable = True

# Use the `not` operator to check if the item is NOT perishable
long_shelf_life = not is_perishable

# Print the result
print("Does the item need to be sold quickly?", long_shelf_life)

Opgave

Swipe to start coding

Evaluate if an item is discounted or low in stock to determine its eligibility for promotion.

Define a boolean variable movingProduct that is True if the item is either discounted or low in stock, using logical operators.
Create a boolean variable promotion that is True if the item is not discounted and sufficiently stocked.
Print the message: Is the item eligible for promotion? <promotion>.

Output Requirements

Print whether the item is eligible for promotion: Is the item eligible for promotion? <promotion>.

Løsning

Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder

Var alt klart?

Tak for dine kommentarer!

Sektion 3. Kapitel 2

Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder