Python might in general prefer exceptions, but many users expect there to be a non-exception-raising-find-index method as well, especially as that's how it's done in almost every other …

There is an abstraction in here to define a find function. Just encapsulate the the boolean expession of the if in a lambda & you can write find(fn,list) usually instead of obfuscating …

Feb 19, 2010 · For example in a string sentence, position of e is 1, 4, 7 (because indexing usually starts from zero). but what I find is both of the functions find() and index() returns first position …

Apr 1, 2013 · Find maximum value of a column and return the corresponding row values using Pandas Asked 12 years, 8 months ago Modified 9 months ago Viewed 650k times

Aug 20, 2013 · Over half a millisecond in some cases to find a value in a series of 25. 2022-02-18 Update Updated all the timings with the latest Pandas version and Python 3.9. Even on an …

I've got a list of objects. I want to find one (first or whatever) object in this list that has an attribute (or method result - whatever) equal to value. What's the best way to find it? Here's a t...

Python has string.find() and string.rfind() to get the index of a substring in a string. I'm wondering whether there is something like string.find_all() which can return all found indexes (not only the …

How do I determine: the current directory (where I was in the shell when I ran the Python script), and where the Python file I am executing is?

724 The majority of answers explain how to find a single index, but their methods do not return multiple indexes if the item is in the list multiple times. Use enumerate():

python -m site --user-site If this points to a non-existing directory check the exit status of Python and see python -m site --help for explanations. Hint: Running pip list --user or pip freeze --user …