How can I pass a list as a command-line argument with argparse?
Don't use quotes on the command line 1 Don't use type=list, as it will return a list of lists This happens because under the hood argparse uses the value of type to coerce each individual …
How to overcome TypeError: unhashable type: 'list'
A work around is create a custom_list type that inherits list with a method __hash__() then convert your list to use the custom_list datatype. still better to use built-in types.
How to list all installed packages and their versions in Python?
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 …
c++ - vector vs. list in STL - Stack Overflow
Since a list uses non-contiguous memory, the time taken to insert an element inside a list is a lot more efficient than in the case of its vector counterpart because reallocation of memory is …
How do I return dictionary keys as a list in Python?
Python >= 3.5 alternative: unpack into a list literal [*newdict] New unpacking generalizations (PEP 448) were introduced with Python 3.5 allowing you to now easily do: >>> newdict = {1:0, 2:0, …
How to list containers in Docker - Stack Overflow
May 30, 2013 · For example list and start of containers are now subcommands of docker container and history is a subcommand of docker image. These changes let us clean up the …
In Python, how do I index a list with another list?
In Python, how do I index a list with another list? Asked 16 years ago Modified 2 years, 5 months ago Viewed 282k times
Most efficient way to find if a value exists within a C# List
Apr 17, 2013 · In C# if I have a List of type bool. What is the fastest way to determine if the list contains a true value? I don’t need to know how many or where the true value is. I just need to …
Get unique values from a list in python - Stack Overflow
Oct 15, 2012 · But that's what we want in order to get the unique elements from a list with duplicates, we want to .append them into a new list only when we they came across for a fist …
How do I clone a list so that it doesn't change unexpectedly after ...
While using new_list = my_list, any modifications to new_list changes my_list every time. Why is this, and how can I clone or copy the list to prevent it? For example: >>> my_list = [1, 2,...