Syntax errors and exceptions are the two forms of errors in Python. Errors are issues in a program that causes the program to halt its execution.

Exceptions, on the other hand, are raised when internal events occur that disrupt the program’s usual flow.

Use Python Try Except

Note: See Python Errors and Exceptions for additional details.

The following are some examples of frequent Exception Errors:

• If the file can’t be opened, you’ll get an IOError.
• When the user presses an unrequired key, the keyboard is interrupted.
• When a built-in function receives an invalid argument, a ValueError occurs.
• If you hit End-Of-File without reading any data, you’ll get an EOFError.
• If it is unable to locate the module, it will throw an import error.

In Python, try, Except, Finally

To address these failures in our Python code, we use the Try and Except statements.

An attempt section is being used to check for errors in code; if the program is error-free, the code inside the try section will execute.

A code in the exception block, on either side, will be executed however when the computer encounters an error in the try block.

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try:
	pass
except Exception as e:
	raise

You can’t make a loop without an except block, therefore the only option is to try to ignore the thrown exception and define the pass statement in the except block, as seen earlier. A passing statement is the same as a blank line of code.

Finally, we can use the block.

Even if you have a code block to run that may often run well but often not, depending on conditions you can’t predict when you’re writing code, you should use try/except.

Using Python error handling has an unintended consequence.

Programs that utilize try-except blocks to handle errors, for example, will run significantly slower and have a larger codebase.

There is also one more condition you can use if your code is not giving output but only try, and except both printing same value so, the variable value you will get running the following code.

try:
	pass
except Exception as e:
	raise
else:
	pass
finally:
	pass

So, here we used the variable inside of try, except function in Python, lets have a look.

i = 10
d = 115
try:
	if i != d:
		print("Blah blah blah")
except Exception as e:
	print("Yes, it is true")

You can see the output also in the following image.