Hi there is no return in the utils.py file ?

naokishibuya / car-behavioral-cloning

Built and trained a convolutional network for end-to-end driving in a simulator using Tensorflow and Keras

MIT License

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Hi there is no return in the utils.py file ? #6

Closed jhasuman closed 7 years ago

jhasuman commented 7 years ago

While I was trying to understand the utils.py file but there is no return for the last function, Am I missing something ? Thank You!!

naokishibuya commented 7 years ago

Hi @jhasuman That function is a generator. The 'yield' returns values but the function itself does not return/exit. If you search for 'Python generator' or 'Keras fit_generator', you should be able to find related articles. For example,

https://jeffknupp.com/blog/2013/04/07/improve-your-python-yield-and-generators-explained/
https://medium.com/@fromtheast/implement-fit-generator-in-keras-61aa2786ce98

naokishibuya commented 7 years ago

@jhasuman - I'm closing this for now. Let me know if you need any further clarification.