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# Lambda float

How can I avoid to write tree times float before x? Os where another way? #task: 7% tax if p <= 20 else tax free #with lambda Code: p= ['2','10','80','99'] thats the input res3 = list(map(lambda x: float(x)*1.07 if float(x) <= 20 else float(x),p)) print(sum(res3)) https://code.sololearn.com/cX8VK5NB05ZI/?ref=app

4 Answers

+ 3

Angela o, those are strings. Didn't notice that. This should work:
p= ['2','10','80','99']
res3 = list(map(lambda x: x*1.07 if x <= 20 else x,[float(i) for i in p]))
print(sum(res3))

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Logical error : 7% is 0.07 not 1.07
While convert everything to float? Inasmuch as you are multiplying by a float, you will end up with a float

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NotAPythonNinja okay. I thought it was only the sum of the tax

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res4 = list(map(lambda x: x *1.07 if x <= 20 else x,p))
File "file0.py", line 13, in <lambda>
res4 = list(map(lambda x: x *1.07 if x <= 20 else x,p))
TypeError: '<=' not supported between instances of 'str' and 'int'
I get these errors without float before.
Please look again, because the input is in another format. W/o float it doesnt work.