In this tutorial, we will learn how to print an octal number in Python without using the 0o prefix. The 0o prefix is frequently used in Python to indicate that a number is in the octal numeral system.
However, there are situations where we may want to print an octal value without this prefix. With the use of Python’s built-in functions and methods, we can achieve this in a few straightforward steps.
Step 1: Converting Decimal to Octal
The first step is to convert a decimal number to an octal. We can do this easily by using the oct() function. This function returns a string that represents the octal value of a specific integer. The string starts with the “0o” prefix.
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num = 8 octal_num = oct(num) print(octal_num) |
This will output:
0o10
However, we want our octal value to be printed without the “0o” prefix.
Step 2: Removing “0o” Prefix
In Python, strings are treated as sequence types, meaning we can perform sequence operations on them. Specifically, we can use the slice operation to remove the first two characters of the string (“0o”).
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num = 8 octal_num = oct(num)[2:] print(octal_num) |
Here, the slice operation [2:] means start from the third character and go until the end of the string.
This will output:
10
As you see, we managed to print out the octal value of 8 which is “10” without the “0o” prefix.
Here is the full code:
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num = 8 octal_num = oct(num)[2:] print(octal_num) |
The output of the code is:
10
Conclusion
This tutorial helped us understand how we could print an octal number in Python without using the 0o prefix.
By leveraging Python’s built-in functions and methods, we’re able to convert decimal numbers to octal representation and remove the “0o” prefix using Python’s slice operation.
This knowledge is not only useful when working with different number systems, but also essential in understanding how Python’s string operations work. Happy coding!