Question

Q.what happens when you try to convert a string into an integer but the string is not a number?​

Answer 1

First, I would want to star off by explaining what strings and integers are.

____________________________________________

STRINGS

A string is a list characters. These characters could be anything raging from alphabets, numbers to all the ancient characters, foreign languages.In short, these are called as Unicode characters. But, one and only way to identify a string is either with the '  ' or "  ".

INTEGERS

Integers are basically numbers. 1 to infinity. It has no limit.

____________________________________________

One type can be converted to an other type.

int - integer

str - string

float - float (decimal numbers)

____________________________________________

If we would want an integer or a float to be a string, we just add str() before it.

23 - integer

str(23) = '23' - String

String could be converted to integers too but only when there are numbers in the strings.

int('23') - convertible

int('234567') - convertible

int('number') - not convertible

When it is not convertible, there be an error raised.

Traceback (most recent call last):

 File "<pyshell#27>", line 1, in <module>

   int('number')

ValueError: invalid literal for int() with base 10: 'number'

It is a ValueError because all these int, str, floats are values and when it is not compatible, there is an error.