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Tag: ruby

What is the Python equivalent of Ruby’s Base64.urlsafe_encode64(Digest::SHA256.hexdigest(STRING))

I am trying to port parts of a ruby project to python and cannot figure out the equivalent to Base64.urlsafe_encode64(Digest::SHA256.hexdigest(STRING)) Closest I have gotten is base64.urlsafe_b64encode(hashlib.sha256(STRING.encode(‘utf-8′)).digest()) however giving the input of StackOverflow it returns: b’HFqE4xhK0TPtcmK7rNQMl3bsQRnD-sNum5_K9vY1G98=’ for Python and MWM1YTg0ZTMxODRhZDEzM2VkNzI2MmJiYWNkNDBjOTc3NmVjNDExOWMzZmFjMzZlOWI5ZmNhZjZmNjM1MWJkZg== in Ruby. Full Python & Ruby Code: Ruby Python Answer In your original Python code, you used digest instead of hexdigest

Do Python regular expressions have an equivalent to Ruby’s atomic grouping?

Ruby’s regular expressions have a feature called atomic grouping (?>regexp), described here, is there any equivalent in Python’s re module? Answer Python does not directly support this feature, but you can emulate it by using a zero-width lookahead assert ((?=RE)), which matches from the current point with the same semantics you want, putting a named group ((?P<name>RE)) inside the lookahead,

generate video pixel by pixel, programmatically

I’d like to generate an animation pixel by pixel programmatically. Preferably in Hi-Def, in Python or in Ruby. I thought about using PIL to make each frame and then convert the frames into video. Is there a better way to do this? EDIT: Clarification, this is 2D and I need the pixels to be precise. EDITEDIT: Something like this: Would