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python - What do *args and **kwargs mean? - Stack Overflow What exactly do *args and **kwargs mean? According to the Python documentation, from what it seems, it passes in a tuple of arguments def foo (hello, *args): print (hello) for each in args:
dockerfile - How do I set environment variables during the docker . . . When building a Docker image from the commandline, you can set ARG values using –build-arg: $ docker build --build-arg some_variable_name=a_value Running that command, with the above Dockerfile, will result in the following line being printed (among others): Oh dang look at that a_value So, how does this translate to using docker-compose yml
c++ - What does int argc, char *argv [] mean? - Stack Overflow The variables are named argc (argument count) and argv (argument vector) by convention, but they can be given any valid identifier: int main(int num_args, char** arg_strings) is equally valid
Default arguments with *args and **kwargs - Stack Overflow In Python 2 x (I use 2 7), which is the proper way to use default arguments with *args and **kwargs? I've found a question on SO related to this topic, but that is for Python 3: Calling a Python fu
What is the String [] args parameter in the main method? That String[] args part may become optional in future versions of Java Work is underway to allow for simplified declaration of main method See JEP 463: Implicitly Declared Classes and Instance Main Methods (Second Preview), a new feature previewed in Java 22 This is part of the paving the on-ramp initiative led by the Java team at Oracle to make Java easier to learn
python - Parsing boolean values with argparse - Stack Overflow I would like to use argparse to parse boolean command-line arguments written as "--foo True" or "--foo False" For example: my_program --my_boolean_flag False However, the following test code does
How to pass arguments to a Dockerfile? - Stack Overflow I am using RUN instruction within a Dockerfile to install a rpm RUN yum -y install samplerpm-2 3 However, I want to pass the value "2 3" as an argument My RUN instruction should look something li