How Do I Convert Strings to Numeric Data Types (int and float) in Python?

Converting Strings to Numeric Data Types in Python

In Python, it is often necessary to convert strings representing numeric values to actual numeric data types such as float or int. This becomes crucial when working with data from external sources or when precise mathematical operations are required.

Converting Strings to Float

To convert a string to a float, utilize the float() function. It takes a string argument and returns a floating-point representation of the numeric value within.

For example:

a = "545.2222"
float(a)
# Output: 545.22220000000004

Converting Strings to Int

If you need to convert a string to an integer, you can use the int() function, but first, you must ensure that the string is a valid integer representation.

For example:

a = "31"
int(a)
# Output: 31

Note: It's worth mentioning that int() applied to a string that represents a float will return the truncated integer part of the float value, as demonstrated in the example below:

int(float(a))
# Output: 545

By understanding these conversion techniques, you can seamlessly handle numeric data within strings and perform precise mathematical operations as needed in your Python programs.

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