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~~How to provide additional information when raising exception~~

How can I provide additional information when raising an exception?

~~# MWE~~
```py
filename = "bad_dir"
print(f"File not found: {filename}.")
raise(FileNotFoundError)
```
~~# Question~~
~~How do I raise an exception while adding additional information? In the~~
example above, the exception raised is printed at the bottom of the
stacktrace, and the print above it is printed at runtime and hard to
~~find in the terminal.~~
~~Is there a way to add a string to the raised~~
~~exception to provide additional information?~~

Suppose I have some code like:
```py
filename = "bad_dir"
print(f"File not found: {filename}.")
raise(FileNotFoundError)
```
When the exception isn't caught, the stack trace is printed at the end of the output, right as the program aborts. The `print`ed message could be far above this and is hard to find in the terminal and hard to associate with the exception.
How can I provide additional information in the exception, so that it can be seen immediately when the traceback is displayed?

python exception

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