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<\/a><\/p>\nErrors are issues in a program that lead to the termination of its execution. Conversely, exceptions are triggered by internal events that disrupt the regular flow of the program.<\/p>\n
Two Types of Errors Can Occur in Python.<\/h2>\n\n- Syntax errors<\/li>\n
- Logical errors (Exceptions)<\/li>\n<\/ol>\n
1. Syntax errors<\/h3>\n
When the proper syntax of the language is not followed at that time a syntax error is thrown.<\/p>\n
Example:<\/h4>\n<\/div>\n\r\n# Initialize the amount variable\r\npurchase_amount = 100\r\n# Check if you are eligible to purchase DSA Self Paced or not\r\nif (purchase_amount > 299)\r\nprint(\"You are eligible to purchase item under 299\")<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
ERROR!
\nFile “<string>”, line 5
\nif (purchase_amount > 299)
\n^
\nSyntaxError: expected ‘:’<\/p>\n
The error message appears because we forgot to put a colon (:) after the ‘if’ statement. We can correct this by adding the missing colon to the syntax.<\/p>\n
<\/div>\n\t\t\n\t\t\t \n \n \n \n \n \n \t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t <\/div>\n <\/div>\n <\/div>\n <\/section>\n \t\t<\/div>\n\t\t\n<\/div>\n2. logical errors(Exception)<\/h3>\n
When an error happens during the program’s execution, even after passing the syntax check, it’s called an exception or a logical error. For instance, if we try to divide a number by zero, it raises the ZeroDivisionError exception. Similarly, importing a module that doesn’t exist triggers an ImportError.<\/p>\n
Example 1:<\/h4>\n<\/div>\n\r\n# initialize the amount variable\r\nmarks = 100\r\n# perform division with 0\r\nresult = marks \/ 0\r\nprint(result)<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
ERROR!
\nTraceback (most recent call last):
\nFile “<string>”, line 5, in <module>
\nZeroDivisionError: division by zero
\nIn the example above, the ZeroDivisionError occurs because we are attempting to divide a number by 0.<\/p>\n
Example 2: When indentation is not correct.<\/h3>\n<\/div>\n\r\nif (a < 3):\r\nprint(\"gfg\")<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
Traceback (most recent call last):
\nFile “<string>”, line 1, in <module>
\nERROR!
\nNameError: name ‘a’ is not defined<\/p>\n
Some additional common built-in exceptions, aside from the ones mentioned above, include:<\/strong><\/p>\n\n- IndexError:<\/strong> When attempting to retrieve an index that doesn’t exist in a list.<\/li>\n
- AssertionError:<\/strong> It happens when the assert statement does not hold true.<\/li>\n
- AttributeError:<\/strong> It happens when there is a failure in assigning an attribute.<\/li>\n
- ImportError:<\/strong> It happens when a required module for import is not found.<\/li>\n
- KeyError:<\/strong> It happens when attempting to access a key in a dictionary that does not exist.<\/li>\n
- NameError:<\/strong> It happens when trying to use a variable that has not been defined.<\/li>\n
- MemoryError:<\/strong> It happens when a program exhausts its available memory.<\/li>\n
- TypeError:<\/strong> It happens when a function and operation are applied to an incorrect data type.<\/li>\n<\/ol>\n<\/div>\n\t\t\n\t\t\t
\n \n \n \n \n \n \t\t\n\t\t\t\t\n\t\t\t\t\t\t\t
1. Syntax errors<\/h3>\n
When the proper syntax of the language is not followed at that time a syntax error is thrown.<\/p>\n
Example:<\/h4>\n<\/div>\n\r\n# Initialize the amount variable\r\npurchase_amount = 100\r\n# Check if you are eligible to purchase DSA Self Paced or not\r\nif (purchase_amount > 299)\r\nprint(\"You are eligible to purchase item under 299\")<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
ERROR!
\nFile “<string>”, line 5
\nif (purchase_amount > 299)
\n^
\nSyntaxError: expected ‘:’<\/p>\n
The error message appears because we forgot to put a colon (:) after the ‘if’ statement. We can correct this by adding the missing colon to the syntax.<\/p>\n
<\/div>\n\t\t\n\t\t\t \n \n \n \n \n \n \t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t <\/div>\n <\/div>\n <\/div>\n <\/section>\n \t\t<\/div>\n\t\t\n<\/div>\n2. logical errors(Exception)<\/h3>\n
When an error happens during the program’s execution, even after passing the syntax check, it’s called an exception or a logical error. For instance, if we try to divide a number by zero, it raises the ZeroDivisionError exception. Similarly, importing a module that doesn’t exist triggers an ImportError.<\/p>\n
Example 1:<\/h4>\n<\/div>\n\r\n# initialize the amount variable\r\nmarks = 100\r\n# perform division with 0\r\nresult = marks \/ 0\r\nprint(result)<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
ERROR!
\nTraceback (most recent call last):
\nFile “<string>”, line 5, in <module>
\nZeroDivisionError: division by zero
\nIn the example above, the ZeroDivisionError occurs because we are attempting to divide a number by 0.<\/p>\n
Example 2: When indentation is not correct.<\/h3>\n<\/div>\n\r\nif (a < 3):\r\nprint(\"gfg\")<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
Traceback (most recent call last):
\nFile “<string>”, line 1, in <module>
\nERROR!
\nNameError: name ‘a’ is not defined<\/p>\n
Some additional common built-in exceptions, aside from the ones mentioned above, include:<\/strong><\/p>\n\n- IndexError:<\/strong> When attempting to retrieve an index that doesn’t exist in a list.<\/li>\n
- AssertionError:<\/strong> It happens when the assert statement does not hold true.<\/li>\n
- AttributeError:<\/strong> It happens when there is a failure in assigning an attribute.<\/li>\n
- ImportError:<\/strong> It happens when a required module for import is not found.<\/li>\n
- KeyError:<\/strong> It happens when attempting to access a key in a dictionary that does not exist.<\/li>\n
- NameError:<\/strong> It happens when trying to use a variable that has not been defined.<\/li>\n
- MemoryError:<\/strong> It happens when a program exhausts its available memory.<\/li>\n
- TypeError:<\/strong> It happens when a function and operation are applied to an incorrect data type.<\/li>\n<\/ol>\n<\/div>\n\t\t\n\t\t\t
\n \n \n \n \n \n \t\t\n\t\t\t\t\n\t\t\t\t\t\t\t
\r\n# Initialize the amount variable\r\npurchase_amount = 100\r\n# Check if you are eligible to purchase DSA Self Paced or not\r\nif (purchase_amount > 299)\r\nprint(\"You are eligible to purchase item under 299\")<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
ERROR!
\nFile “<string>”, line 5
\nif (purchase_amount > 299)
\n^
\nSyntaxError: expected ‘:’<\/p>\n
The error message appears because we forgot to put a colon (:) after the ‘if’ statement. We can correct this by adding the missing colon to the syntax.<\/p>\n
<\/div>\n\t\t\n\t\t\t \n \n \n \n \n \n \t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t <\/div>\n <\/div>\n <\/div>\n <\/section>\n \t\t<\/div>\n\t\t\n<\/div>\n2. logical errors(Exception)<\/h3>\n
When an error happens during the program’s execution, even after passing the syntax check, it’s called an exception or a logical error. For instance, if we try to divide a number by zero, it raises the ZeroDivisionError exception. Similarly, importing a module that doesn’t exist triggers an ImportError.<\/p>\n
Example 1:<\/h4>\n<\/div>\n\r\n# initialize the amount variable\r\nmarks = 100\r\n# perform division with 0\r\nresult = marks \/ 0\r\nprint(result)<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
ERROR!
\nTraceback (most recent call last):
\nFile “<string>”, line 5, in <module>
\nZeroDivisionError: division by zero
\nIn the example above, the ZeroDivisionError occurs because we are attempting to divide a number by 0.<\/p>\n
Example 2: When indentation is not correct.<\/h3>\n<\/div>\n\r\nif (a < 3):\r\nprint(\"gfg\")<\/code><\/pre>\n<\/div>\nOutput:<\/h4>\n
Traceback (most recent call last):
\nFile “<string>”, line 1, in <module>
\nERROR!
\nNameError: name ‘a’ is not defined<\/p>\n
Some additional common built-in exceptions, aside from the ones mentioned above, include:<\/strong><\/p>\n\n- IndexError:<\/strong> When attempting to retrieve an index that doesn’t exist in a list.<\/li>\n
- AssertionError:<\/strong> It happens when the assert statement does not hold true.<\/li>\n
- AttributeError:<\/strong> It happens when there is a failure in assigning an attribute.<\/li>\n
- ImportError:<\/strong> It happens when a required module for import is not found.<\/li>\n
- KeyError:<\/strong> It happens when attempting to access a key in a dictionary that does not exist.<\/li>\n
- NameError:<\/strong> It happens when trying to use a variable that has not been defined.<\/li>\n
- MemoryError:<\/strong> It happens when a program exhausts its available memory.<\/li>\n
- TypeError:<\/strong> It happens when a function and operation are applied to an incorrect data type.<\/li>\n<\/ol>\n<\/div>\n\t\t\n\t\t\t
\n \n \n \n \n \n \t\t\n\t\t\t\t\n\t\t\t\t\t\t\t