[issue35448] ConfigParser .read() - handling of nonexistent files

[Batuhan]

Batuhan <batuhanosmantaskaya at gmail.com> added the comment:

> I do not think that adding an extra parameter to .read() will solve any problem.

There is a use case of this (which some of tools depends) about checking if configuration exists and if not, raising an error. Now, they can solve this by just adding check_exist argument. 

> Changing the default behavior will break existing code.

Can you give an example of how this feature can/could break existing code?

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<https://bugs.python.org/issue35448>
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