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# Python | Min/Max value in float string list

• Last Updated : 22 Jan, 2021

Sometimes, while working with a Python list, we can have a problem in which we need to find min/max value in the list. But sometimes, we don’t have a natural number but a floating-point number in string format. This problem can occur while working with data, both in web development and Data Science domain. Let’s discuss a way in which this problem can be solved.
Method : Using min()/max() + float()
This problem can be solved using the min or max function in which we first convert the strings into float and then pass this logic in functions in respective min/max function.

## Python3

 `# Python3 code to demonstrate working of``# Min / Max value in float string list``# using min()/max() + float() + generator` `# initialize lists``test_list ``=` `[``'4.5'``, ``'7.8'``, ``'9.8'``, ``'10.3'``]` `# printing original list``print``(``"The original list is : "` `+` `str``(test_list))` `# Min / Max value in float string list``# using min()/max() +float + lambda function``res_min ``=` `min``(test_list,key``=``lambda` `x:``float``(x))``res_max ``=` `max``(test_list,key``=``lambda` `x:``float``(x))` `# printing result``print``(``"The min value of list : "` `+` `str``(res_min))``print``(``"The max value of list : "` `+` `str``(res_max))`
Output
```The original list is : ['4.5', '7.8', '9.8', '10.3']
The min value of list : 4.5
The max value of list : 10.3
```

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