KwickClips Python · 40 sec · free
Why is fee(amt=9, 1) an error?
Short answer. A keyword argument comes before a positional one.
Where do default parameters go in def?
Last.
Rules for def fee(amt, gst)
| Mistake | Error |
|---|---|
| fee(amt=9, 1) | SyntaxError |
| fee(9) | TypeError |
| fee(9, amt=1) | TypeError |
Remember
| Positional first, keyword next |
| Defaults last in the def line |
Python says syntax error. Why? Three calls, three errors. Keyword before positional: syntax error. A missing value is a type error. Two values for amt, type error. In a call, positional before keyword. In the def line, defaults last.
This clip is from the full lesson: Function Arguments: Positional, Default and Keyword Parameters — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Computer Science (083), Programming All levels Python
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