KwickClips Python · 40 sec · free
Why does temp give a NameError outside the function?
Short answer. temp is local to the function.
Can a function read a global variable?
Yes. The inner box can see the outer box.
Boxes inside boxes
| Box | Holds | Sees |
|---|---|---|
| Global (outer) | city | city |
| Inner: weather | temp | temp, city |
Remember
| Global: outside all functions |
| Local: inside one function |
You made temp inside a function. Outside, it gives a name error. Why? The global box holds city, and outside sees only city. The inner weather box holds temp and sees both. Global is outside all functions. Local is inside one.
This clip is from the full lesson: Scope of Variables: Local and Global — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Computer Science (083), ICSE Class 10 Computer Applications, ICSE Class 10 Computer Applications, ISC Class 12 Computer Science (868)
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