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Exceptions in Python - HackerRank Solution
This error is raised when the second argument of a division or modulo operation is zero.
>>> a = '1' >>> b = '0' >>> print int(a) / int(b) >>> ZeroDivisionError: integer division or modulo by zero
This error is raised when a built-in operation or function receives an argument that has the right type but an inappropriate value.
>>> a = '1' >>> b = '#' >>> print int(a) / int(b) >>> ValueError: invalid literal for int() with base 10: '#'
To learn more about different built-in exceptions click here.
The statements try and except can be used to handle selected exceptions. A try statement may have more than one except clause to specify handlers for different exceptions.
#Code try: print 1/0 except ZeroDivisionError as e: print "Error Code:",e
Error Code: integer division or modulo by zero
You are given two values a and b.
Perform integer division and print a//b.
Input Format :
The first line contains T, the number of test cases.
The next T lines each contain the space separated values of a and b.
Output Format :
Print the value of a//b.
In the case of ZeroDivisionError or ValueError, print the error code.
Sample Input :
Sample Output :
Error Code: integer division or modulo by zero Error Code: invalid literal for int() with base 10: '$' 3
For integer division in Python 3 use //.
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How do you raise a value error in Python?
Use the syntax raise exception with exception as ValueError(text) to throw a ValueError exception with the error message text ..
num = int("string").
raise ValueError("ValueError exception thrown").
How do you return an error in Python?
In python code, error conditions are usually indicated with exceptions. You could use raise ValueError("Arrays must have the same size") . Using exception rather than return values to indicate errors has the added advantage that the exception would bubble up until it reaches a except statement.
Can I raise and return Python?
You can't raise and return , but you could return multiple values, where the first is the same as what you're currently using, and the second indicates if an exception arose return True, sys. exc_info() == (None, None, None) or something similar but better suited to context.
What does raising an error mean in Python?
When programmers refer to raise an error it means to catch an unexpected behaviour what something goes wrong. As a simple example in Python: int('a') >> ----> 1 int('a') ValueError: invalid literal for int() with base 10: 'a'