How Do I Convert Strings to Floats and Integers in Python?

Parsing Strings to Floating-Point Numbers and Integers

In Python, converting strings to floating-point numbers or integers is a straightforward process. Let's explore how to achieve this conversion for both scenarios:

Converting a String to a Float:

To convert a string representing a floating-point number to a float, use the float() function. For example:

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

It's worth noting that float() maintains precision, so the resulting float may have a slightly different representation than the original string.

Converting a String to an Integer:

To convert a string representing an integer to an int, the process is slightly more involved. First, convert the string to a float using float(), and then use int() to extract the integer value.

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

This two-step approach ensures that the integer value is precise.

Additional Notes:

• For the reverse operation (converting an integer or float to a string), refer to the article "Convert integer to string in Python" or "Converting a float to a string without rounding it."
• If you want to read user input as numbers, use the "How can I read inputs as numbers?" question instead to avoid duplicate requests for immediate conversion of strings obtained from user input.

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