How do I check if a string is a number (float) in Python?

You can use in-built function isdigit() to check if a string is a number (float) in Python as shown in the below example –

s1 = "12345678"
s2 = "hello123456"

print(s1.isdigit())   ## Returns True
print(s2.isdigit())   ## Returns False

s1 = "12345678"

s2 = "hello123456"

print(s1.isdigit()) ## Returns True

print(s2.isdigit()) ## Returns False

Tags: FAQ, Python