![]() So we are trying to convert 10a, which isn’t a valid numeric value, into a floating point value hence we are getting the ValueError. Output ValueError: could not convert string to float: '10a'Īs you can see, the error itself is self-explanatory it says that ValueError: could not convert string to float: ’10a’. Usually, this happens if the string object is an invalid parameter to the float(). In Python, if you convert a string object into a floating point, you may face the ValueError could not convert the string to float numerous times. What is the “ValueError: Could Not Convert a String to Float” Error in Python? And to verify that it is working as expected, let’s check the data types of decimal_num and float_num using the type() function.īefore type casting, the type of the number 10 was int, whereas, after conversion, the data type is converted into float, as demonstrated in the above example.Īlright, now we have understood type casting in Python and how the float function works □ let’s see what is ValueError could not convert string to float in Python and why it occurs. So even if you provide a string and it’s a valid value for the float function, it’ll convert it into a floating number.Īs you can see in the above example, we have converted the decimal number 10 into a float number 10.0. The float() function type casts any right and acceptable data types into a float number.
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