How to print like printf in Python3?

How to Print Like printf in Python 3?

Do you miss the good old days of using the printf function in Python 2 for all your printing needs? 🤔 Don't worry, I've got you covered! In this guide, I'll show you how to achieve similar functionality in Python 3, making your printing experience a breeze. Let's dive in! 💪

The Problem

In Python 2, you could easily format and print variables using the % operator, just like with printf in other languages. However, with the transition to Python 3, this syntax changed. If you try to use it as before, you'll encounter a TypeError stating that you can't perform the % operation on the str and tuple types. 😱

The Old Syntax (Python 2)

print "a=%d, b=%d" % (f(x, n), g(x, n))

The Updated Syntax (Python 3)

print("a=%d, b=%d") % (f(x, n), g(x, n))

The Solution

To achieve the same functionality in Python 3, you need to use the format() method. This method allows you to format and print variables in a similar way to the % operator in Python 2. Let me show you how! 🎉

print("a={}, b={}".format(f(x, n), g(x, n)))

By using curly braces {} as placeholders, you can pass in variables or expressions to be printed. In this case, we're using the format() method to substitute the values of f(x, n) and g(x, n) into the string.

Formatting Options

The format() method offers various formatting options to customize your output. For example:

• {} - By default, the values are substituted in the order they appear.

• {:d} - Formats the value as an integer.

• {:.2f} - Formats the value as a floating-point number with two decimal places.

• {:s} - Formats the value as a string.

• And many more! 😎

Check out the official Python documentation for a complete list of formatting options and possibilities.

Used in Real-Life

Let's see how our updated syntax can be used in a real-life scenario:

name = "John Doe"
age = 30
balance = 1250.75

print("Name: {}, Age: {:d}, Balance: {:.2f}".format(name, age, balance))

Output:

Name: John Doe, Age: 30, Balance: 1250.75

With the format() method, you have full control over the formatting and flexibility to handle various data types.

Conclusion

You don't need to miss the printf-like functionality from Python 2 anymore! With the format() method in Python 3, you can achieve similar results while maintaining code compatibility. Remember to explore the formatting options to unleash the full potential of this method.

Now it's your turn! Give it a try and start using format() in your Python 3 projects. If you have any questions or need further assistance, feel free to leave a comment below. Happy printing! 🖨️

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