python-3.x

flask handle form with radio buttons

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You should add the value attribute to each of your input fields: <input type=”radio” name=”options” id=”option1″ value=”option1″> Option1 </input><br> <input type=”radio” name=”options” id=”option2″ value=”option2″> Option2 </input><br> <input type=”radio” name=”options” id=”option3″ value=”option3″> Option3 </input><br> and in your flask route you can read the selected option: option = request.form[‘options’] and you’ll get the value of the selected … Read more

‘ABCMeta’ object is not subscriptable when trying to annotate a hash variable

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You should use typing.Mapping instead of collections.abc.Mapping. typing contains many generic versions of various types, which are designed to be used in type hints. According to the mypy documentation, there are some differences between the typing classes and the collections.abc classes, but they’re unclear on exactly what those differences are.

How to Center Text in Pygame

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You can always just center the text rectangle when you grab it: # draw text font = pygame.font.Font(None, 25) text = font.render(“You win!”, True, BLACK) text_rect = text.get_rect(center=(SCREEN_WIDTH/2, SCREEN_HEIGHT/2)) screen.blit(text, text_rect) just another option

Module Seaborn has no attribute ”

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You have found that example on the newest version of the seaborn module, which is 0.9. From the “What’s new in each version” section: New relational plots Three completely new plotting functions have been added: relplot(), scatterplot(), and lineplot() So, you need to update your seaborn to the latest version to use these plotting functions.

Unable to initialize device PRN in Python

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I had this same problem when I accidentally typed “print program.py” instead of “python program.py”. The error message comes from the Windows command-line program named print. Those who suggested restarting the command prompt probably committed the same typo without noticing, and corrected it in their new command prompt.

Basemap import error in PyCharm — KeyError: ‘PROJ_LIB’

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For Windows 10 with Anaconda + Python 3.71 (and I’m sure other Python 3 versions and Windows 7/8), you can tell Basemap where Proj4’s “epsg” file is to succeed. I don’t have an “environment” or whatever because it’s too much work to figure out – so I didn’t have an anaconda\share\proj area (as far as … Read more

ImportError: cannot import name ‘sysconfig’ from ‘distutils’ (/usr/lib/python3.8/distutils/__init__.py)

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I have tried recently manually installing python3.9 version in my Ubuntu from 3.6 version using apt install python3.9. Then pip3 was broken. The issue is because distutils were not build for the 3.9 version. So in my case I ran apt install python3.9-distutils to resolve my issue. In your case make sure to modify 3.x … Read more