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sunil shrestha
735 PointsLocal Variable accessible
since entry is an local variable how can delete_entry(entry) function is able to access entry?
1 Answer
Chris Freeman
Treehouse Moderator 68,423 PointsGreat question! Python passes variables to functions using “pass by object reference”. So in the function view_entries, the calling code delete_entry(entry), refers to the variable entry as defined by the containing for loop. A pointer to this object (its address) is passed to the function delete_entry. Any references to the variable “entry” within the called function point to the same object. Effectively, this makes “entry” non-local.
In other words, the objects passed to a function are not local to the function.
One caveat to this concept is if event were to be assigned within the function delete_entry, the variable event would become local so the outer scoped object passed to the function would not be overwritten.
Post back if you need more help. Good luck!!!