How do I check if there are duplicates in a flat list?
Use set() to remove duplicates if all values are hashable:
list
Python assigning multiple variables to same value? list behavior
If you’re coming to Python from a language in the C/Java/etc. family, it may help you to stop thinking about a as a “variable”, and start thinking of it as a “name”. a, b, and c aren’t different variables with equal values; they’re different names for the same identical value. Variables have types, identities, addresses, and all kinds of stuff … Read more
how to create a list of lists
Use append method, eg:
Map to List error: Series object not callable
But I think you can omit map and use simple subtract and then convert to list: Also don’t use variable list (reserved word in python) rather L (or something else): Sample: EDIT: I try simulate problem: If change list to L, is important reopen python console, because still same error. So this works perfectly:
How to read a text file into a list or an array with Python
You will have to split your string into a list of values using split() So, EDIT: I didn’t realise there would be so much traction to this. Here’s a more idiomatic approach.
lists and arrays in VBA
You will have to change some of your data types but the basics of what you just posted could be converted to something similar to this given the data types I used may not be accurate. Collections cannot be sorted so if you need to sort data you will probably want to use an array. … Read more
How to print out all the elements of a List in Java?
Here is some example about getting print out the list component:
Select distinct using linq
Edit: as getting this IEnumerable<> into a List<> seems to be a mystery to many people, you can simply write: But one is often better off working with the IEnumerable rather than IList as the Linq above is lazily evaluated: it doesn’t actually do all of the work until the enumerable is iterated. When you call ToList it actually walks the entire enumerable forcing all … Read more
How to remove \n from a list element?
If you want to remove \n from the last element only, use this: If you want to remove \n from all the elements, use this: You might also consider removing \n before splitting the line: