KwickClips Python · 40 sec · free
Why did the wallet not change without global?
Short answer. Storing inside made a new local wallet.
Do you need global to read a global variable?
No. Only to change it.
Remember
| global: change the outer name |
| Not needed just to read it |
The function spends, but the wallet stays full. Why? Without global, storing inside makes a new local wallet. Global wallet uses the outer one. So spend leaves seventy. Use global to change an outer name. Reading does not need it.
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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