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Title: Understanding and Using zfill() in Python
Introduction:
The zfill() method is a built-in string method in Python that is used to pad a string with zeros (0) on the left side. This can be particularly useful when you need to format numeric strings to a specific width, especially in cases where leading zeros are necessary for alignment or readability. In this tutorial, we will explore the usage of the zfill() method with clear examples.
Syntax:
The syntax for the zfill() method is as follows:
Example 1: Basic Usage
Output:
In this example, the original string "42" is padded with zeros on the left to achieve a total width of 5 characters.
Example 2: Handling Negative Numbers
Output:
Even for negative numbers, zfill() works by padding zeros to the left, maintaining the negative sign.
Example 3: Padding with a Larger Width
Output:
In this case, the original string "123456" is padded with leading zeros to achieve a total width of 8 characters.
Conclusion:
The zfill() method is a convenient tool for formatting strings with leading zeros, ensuring that they meet a specified width. By following the examples provided in this tutorial, you can confidently use the zfill() method in your Python projects to handle zero-padding requirements.
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