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Thursday, April 26, 2018

Python Beyond the Basics

Python tricks for Data Science
  • Alphanumeric fancy word for char.lower() in "0123456789abcdefghijklmnopqrstuvwxyz". Fun fact, "6".lower() is still "6"
  • You can get the size of your heap queue aka priority queue by taking the len() of the heapq variable. Example: heap = [] hq.heappush(heap, 3) len(heap) is now 1.
  • import random random.random() returns a number between 0 and 1, want it bigger? multiply by an integer: random.random()*5 or 5*random.random()
  • Python science, data, linear algebra library landscape: numpy for vectors matrices high level math functions. SciPy math classes and functions useful for scientists. PyLab combines other libraries to provide MATLAB like interface.

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