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ImportError: Cannot import name X

I have four different files named: main, vector, entity and physics. I will not post all the code, just the imports, because I think that's where the error is. (If you want, I can post more) ...
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Doctrine2: Best way to handle many-to-many with extra columns in reference table

I'm wondering what's the best, the cleanest and the most simply way to work with many-to-many relations in Doctrine2. 14 A...
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How do I make the whole area of a list item in my navigation bar, clickable as a link?

I've got a horizontal navigation bar made from an unordered list, and each list item has a lot of padding to make it look nice, but the only area that works as a link is the text itself. How can I enable the user to click anywhere in the list item to active the link? ...
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Return value in a Bash function

I am working with a bash script and I want to execute a function to print a return value: 9 Answers ...
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What exactly do “u” and “r” string flags do, and what are raw string literals?

While asking this question , I realized I didn't know much about raw strings. For somebody claiming to be a Django trainer, this sucks. ...
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Bootstrap close responsive menu “on click”

On "PRODUCTS" click I slide up a white div (as seen in attached). When in responsive (mobile and tablet), I would like to automaticly close the responsive navbar and only show the white bar. ...
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Generating random integer from a range

I need a function which would generate a random integer in given range (including border values). I don't unreasonable quality/randomness requirements, I have four requirements: ...
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combinations between two lists?

It’s been a while and I’m having trouble wrapping my head around a algorithm I’m try to make. Basically, I have two lists and want to get all the combinations of the two lists. ...
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What is a Memory Heap?

What is a memory heap ? 6 Answers 6 ...
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Search and replace a line in a file in Python

I want to loop over the contents of a text file and do a search and replace on some lines and write the result back to the file. I could first load the whole file in memory and then write it back, but that probably is not the best way to do it. ...