KwickClips Python · 44 sec · free
Is 2marks valid?
Short answer. No, it starts with a digit.
Is class a valid name?
No, it is a keyword.
Valid or invalid?
| Name | Valid? | Why |
|---|---|---|
| total_marks | valid | letters, _ |
| 2marks | invalid | digit first |
| total marks | invalid | has a space |
| class | invalid | keyword |
Remember
| Letters, digits, _ only |
| No digit first, no space |
| No keywords; case matters |
Is two marks a valid Python name? No. Total underscore marks is valid. Two marks starts with a digit. Total space marks has a space. Class is a keyword. Letters, digits and underscore only. No digit first, no space. No keywords.
This clip is from the full lesson: Python Tokens: Keywords, Identifiers, Literals, Operators and Punctuators — 9 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Computer Applications (165), CBSE Class 10 Computer Applications (165), CBSE Class 10 Information Technology (402), CBSE Class 10 Information Technology (402)
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