What is the use of a single underscore before a name in python

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The single underscore before the name (for example: _ shahriar)

Programmers use a single underscore before the name to specify that the name attribute is private. This is a bit similar to convention, so that others (or yourself) will know that names that start with "" are for internal use only. As described in the Python documentation:

Names prefixed with an underscore (such as pam) should be treated as private parts of the API (whether they are functions, methods, or data members). At this point, they should be seen as implementation details, and no external notification is required when modifying them.

As mentioned above, this is really similar to a convention, because it does have some meaning for the interpreter, if you write code: from import

Then names that begin with them are not imported unless they are explicitly included in the all list in the module or package

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