Check a variable in python -


i have double variable in python performance want check whether empty or not. following code job?

if re.match("^\d?\.\d+?$", performance) none:

is code checking whether variable empty or not?

to check if values numbers , not empty or string

the right regex pattern below:

performance = '.03' if re.search(r'^(\d*\.)?\d+$', performance):     print(performance, 'is digit')

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