Since a list comprehension creates a list, it shouldn't be used if creating a list is not the goal; it shouldn't be used simply to write a one-line for-loop; so refrain from writing [print(x) for x in …

Nov 2, 2010 · When reading, list is a reference to the original list, and list[:] shallow-copies the list. When assigning, list (re)binds the name and list[:] slice-assigns, replacing what was previously …

Dec 3, 2016 · If your list of lists comes from a nested list comprehension, the problem can be solved more simply/directly by fixing the comprehension; please see How can I get a flat result …

Nov 1, 2011 · How can I check if a list has any duplicates and return a new list without duplicates?

Oct 5, 2017 · Let summarize the differences between List.of and Arrays.asList List.of can be best used when data set is less and unchanged, while Arrays.asList can be used best in case of …

Nov 24, 2015 · As far as the original question, you can use the keytool command to view and edit a keystore like cacerts. To view all keys in the keystore, use keytool -list: $ keytool -list …

I want to get a list of the column headers from a Pandas DataFrame. The DataFrame will come from user input, so I won't know how many columns there will be or what they will be called. …

Sep 3, 2012 · How do I view all settings? Run git config --list, showing system, global, and (if inside a repository) local configs Run git config --list --show-origin, also shows the origin file of …

However, this gives an incomplete listing of installed programs when compared with the list of installed programs in the Control panel. Our original intention is to have a script that can …

Jul 8, 2018 · Is there a way in Python to list all installed packages and their versions? I know I can go inside python/Lib/site-packages and see what files and directories exist, but I find this very …