python - Check if string is a real number -

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is there quick way find if string real number, short of reading character @ time , doing isdigit() on each character? want able test floating point numbers, example 0.03001.

if mean float real number should work:

def isfloat(str):     try:          float(str)     except valueerror:          return false     return true

note internally still loop string, inevitable.


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