EDS 217 Cheatsheet

Basic Usage of `print()`

The print() function outputs the specified message to the screen. It is often used for debugging to display the values of variables and program status during code execution.

Printing Simple Messages

print("Hello, World!")

Printing the Value of Variables

x = 10
y = 20
print(x)
print(y)

Combining Text and Variables

You can combine text and variables in the print() function to make the output more informative. Here are 4 different ways:

This is a note.

Make sure to check your data types before processing.

1. Using Comma Separation

name = "Alice"
age = 30
print("Name:", name, "Age:", age)

2. Using String Formatting

f-string (Formatted String Literal) - Python 3.6+ [PREFERRED]

name = "Bob"
age = 25
print(f"Name: {name}, Age: {age}")

`format()` Method [CAN BE USEFUL IN COMPLICATED PRINT STATEMENTS]

name = "Carol"
age = 22
print("Name: {}, Age: {}".format(name, age))

Old `%` formatting [NOT RECOMMENDED]

name = "Dave"
age = 28
print("Name: %s, Age: %d" % (name, age))

Debugging with Print

Use print() to display intermediate values in your code to understand how data changes step by step.

Example: Debugging a Loop

for i in range(5):
    print(f"Current value of i: {i}")

Example: Checking Function Outputs

def add(a, b):
    result = a + b
    print(f"Adding {a} + {b} = {result}")
    return result

add(5, 3)

Basic Usage of print()