On 6/30/2025 11:53 PM, Popov, Dmitry Yu via Python-list wrote:
Dear Sirs.
I found the following sentence in the Python documentation: "The statements executed by
the top-level invocation of the interpreter, either read from a script file or interactively,
are considered part of a module called
__main__<https://docs.python.org/3.11/library/__main__.html#module-__main__>, so they
have their own global namespace."
In other words, global assignments of variables placed directly in a module's name space
are also "statements executed by the top-level invocation of the interpreter",
if the module is executed as a script.
Is it stable at all to assign global variables directly in a module which runs
as a script? Speaking practically, I have not observed any problem so far.
"Global" in Python means name-spaced to its module. An assignment in a
module, top-level or not, doesn't automatically become a global
assignment in imported modules.
Regards,
Dmitry Popov
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