How do filter and convert unicode to integer in python
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Title: A Guide to Filtering and Converting Unicode to Integer in Python
Introduction:
Unicode is a standard encoding system that represents most of the world's written languages. In Python, it's common to encounter Unicode strings, and there are situations where you might need to filter and convert Unicode characters to integers. This tutorial will guide you through the process of filtering and converting Unicode to integers in Python, providing code examples along the way.
Step 1: Import Required Modules
First, import any necessary modules. In this case, the ord() function will be used to obtain the Unicode code point of a character.
Step 2: Filter Unicode Characters
To filter Unicode characters, you can use a function that checks whether a character falls within a specific range. For example, if you only want to keep digits, you can create a function like this:
This function uses a list comprehension to iterate over each character in the input string (input_str). The isdigit() method is used to check if a character is a digit, and only digits are included in the resulting string.
Step 3: Convert Unicode to Integer
After filtering the Unicode characters, you can convert the resulting string to an integer. Python's built-in int() function can be used for this purpose.
The int() function attempts to convert the filtered string to an integer. If the conversion fails (e.g., if the string contains non-digit characters), a ValueError is caught, and an error message is displayed.
Step 4: Putting it All Together
Now, let's put the filtering and conversion steps together in a complete example:
This example takes a Unicode string, filters out non-digit characters, and then converts the filtered string to an integer. Adjust the unicode_string variable with your own Unicode string for testing.
Conclusion:
Filtering and converting Unicode to integers in Python involves a two-step process: filtering out unwanted characters and then converting the resulting string to an integer. By using the techniques outlined in this tutorial, you can effectively work with Unicode data in your Python programs.
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