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Monthly Archives: January 2022

Python

What Takes 1 Second To Execute in Python

January 17, 2022lucia Leave a comment

I got curious about what actually is a blocker in terms of time complexity, for python. I’ve always known that the smaller the complexity the better, but it’s never quantitative. How bad is n^2? How bad is n^n? How much of an improvement is sqrt(n) or log(n)? What is outrageous to write and is absolutely no-go?

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ajax loader
Standard
Python

How To Install Non Tagged Version of Pip Packages

January 12, 2022lucia Leave a comment

Either with pip:

pip install git+https://github.com/psf/black.git@1aa4d5b

Or with pipx, which looks like a python equivalent of npx, and allows direct runs without installation, or for multiple versions to co-exist:

pipx install git+https://github.com/psf/black.git@1aa4d5b

Ref: [1]

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Standard
Python

How to Set pytest-vcr to autouse=True

January 3, 2022lucia Leave a comment

A bit of a hack. So that whenever there is a request, its response will be recorded:

@pytest.fixture(autouse=True)
def stripe_vcr(vcr, request):
    filename = f"{request.function.__module__}/{request.node.name}.yaml"
    with vcr._use_cassette(path=filename):
        yield

https://pytest-vcr.readthedocs.io/en/latest/configuration/#vcr

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Standard
Tools

How To Kill a Port

January 3, 2022lucia Leave a comment

With npm, as simple as:

npx kill-port 5678

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