realpython / realpython/materials
TDD Hashtag table - TypeError in 01_define_a_custom_hashtable_class
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Description
source: hashtable.py in 01_define_a_custom_hashtable_class
Describe the bug
running the test throws an error for line self.values = capacity * [None]
TypeError: cant multiply sequence by non-int of type ' NoneType'
That's a pity, because I really like this TDD cource!
Running on Windows 10 with python version 3.7.3
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- Read the whole issue, then the project's contributing guide.
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- Open a pull request that references the issue number.
Research direction
Start with hashtable/01_hashtable_prototype/01_define_a_custom_hashtable_class/hashtable.py and the 01_define_a_custom_hashtable_class exercise. Run its test or reproduction on the reported setup, then inspect the initialization around self.values = capacity * [None]. Done means the exercise no longer raises the reported TypeError.
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Assessment
- Tech stack
- python
- Domain
- testing-qa
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100