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 …
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.
How can I pass a list as a command-line argument with argparse?
I am trying to pass a list as an argument to a command line program. Is there an argparse option to pass a list as option? parser.add_argument('-l', '--list', type=list, acti...
python - Use of *args and **kwargs - Stack Overflow
The syntax is the * and **. The names *args and **kwargs are only by convention but there's no hard requirement to use them. You would use *args when you're not sure how many …
docker - Using ARG and ENV in Dockerfile - Stack Overflow
Feb 28, 2020 · ARG before the first FROM are only useful to allow variables in the FROM line and to supply defaults, but can't be used otherwise. This is further discussed under Understand …
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 …
How to get an environment variable value into Dockerfile during …
Mar 19, 2019 · The ARG defines a variable to be used inside the dockerfile in subsequent commands. The ENV defines an environment variable which is passed to the container.
How to define build-args in docker-compose? - Stack Overflow
This answer is very useful, it actually shows how docker-compose can be used with --build-arg on command-line, you can define your ARG in Dockerfile, docker-compose.yml - the :args array …
Type annotations for *args and **kwargs - Stack Overflow
May 4, 2016 · I'm trying out Python's type annotations with abstract base classes to write some interfaces. Is there a way to annotate the possible types of *args and **kwargs? For example, …
Dockerfile if else condition with external arguments
Apr 27, 2017 · Accepted answer does not cover "if else condition" part of the question. Would be better to rename it to "Dockerfile with external arguments" if condition check didn't mean to be …