python execute string
a = """
A = 5
if A > 0 :
print("A Is Positive")
elif A == 0 :
print("A Is Equal To 0")
else :
print("A Is Negative")
"""
exec(a)
>>> A Is Positive
#you can also use eval(string) for asynciopython execute string
a = """
A = 5
if A > 0 :
print("A Is Positive")
elif A == 0 :
print("A Is Equal To 0")
else :
print("A Is Negative")
"""
exec(a)
>>> A Is Positive
#you can also use eval(string) for asynciopython input integer
# To prompt the user to input an integer we do the following:
valid = False
while not valid: #loop until the user enters a valid int
try:
x = int(input('Enter an integer: '))
valid = True #if this point is reached, x is a valid int
except ValueError:
print('Please only input digits')get length of an integer python
# Below uses constant space (converting to string and then gettings it's length does not)
num = 12362
count = 0
while num > 0:
count += 1
num = num // 10
print(count)
# for negative numbers, take absolue value first:
num = -12362
num = abs(num)
count = 0
while num > 0:
count += 1
num = num // 10
print(count)Copyright © 2021 Codeinu
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