↑ Python

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Python - Input And Printing

• input(): Read an user input
• print(): Print to the console

Example:

# Read an input
name = input("Enter your name: ")

# Display data
print("Hello", name)

Printing instruction

[!TIP] It's recommended to use a f-string, see Python String

Can be used in multiple manners:

• print("hello world")
• print("hello", <variable containing a string>)
• print("hello" + <variable containing a string>)
• print("hello %s" % <variable containing a string>)

You can use ' or " or """ to define a string

• ': one word
• ": one line
• """: a paragraphe or more

Example:

print('hello')

Output:

hello

Example:

print("""Hello, World !

I Love Python.""")

Output:

Hello, World !

I Love Python.

Printing variables

• %s -> String
• %d -> Integer
• %f -> Float
• %o -> Octal
• %x -> Hexadecimal
• %e -> Exponential

They can be used to perform conversions directly inside the print function.

Example:

print("Integer = %d" % 18)
print("Float = %f" % 18)
print("Octal = %o" % 18)
print("Hexa = %x" % 18)
print("Expo = %e" % 18)

Output:

Integer = 18
Float = 18.000000
Octal = 22
Hexa = 12
Expo = 1.800000e+01

When using multiple variables you use parenthesis

Example :

print("Hello %s %s" % (string1, string2))

Output:

Hello World !

Escape %

You can use another %

Example:

print("I want to print %%d not %s" % 'here')

Output:

I want to print %d not here

Repeat a string

print('_A' * 10)

Line break

using \n

print "Jan\nFév\nMar\nAvr\nMai\nJuin\nJuil\nAoût"

Tabulation

using \t

print("""
Routine:
\t- Eat
\t- Sleep\n\t- Repeat
""")

# Outputs

Routine:
  - Eat
  - Sleep
  - Repeat

In some context this works too

print("""
Routine:
  - Eat
  - Sleep
  - Repeat
""")

# Outputs

Routine:
  - Eat
  - Sleep
  - Repeat