python print function arguments

Where can I find a comprehensive list of ALL print() arguments?

discuss.python.org › t › where-can-i-find-a-comprehensive-list-of-all-print-arguments › 19165

https://docs.python.org/3/library/functions.html#print Answer from petersuter on discuss.python.org

Where can I find a comprehensive list of ALL print() arguments? - Python Help - Discussions on Python.org

September 16, 2022 - Where is the official definition of all the functions built into Python, including all arguments and what they do? Specifically, I would like to know all available options for the print() function using sys.stdout. There seems to be no official definition of the print function, and only a general ...

Stack Overflow

stackoverflow.com › questions › 582056 › getting-list-of-parameter-names-inside-python-function

Getting list of parameter names inside python function - Stack Overflow

Top answer

1 of 4

502

Well we don't actually need inspect here.

>>> func = lambda x, y: (x, y)
>>> 
>>> func.__code__.co_argcount
2
>>> func.__code__.co_varnames
('x', 'y')
>>>
>>> def func2(x,y=3):
...  print(func2.__code__.co_varnames)
...  pass # Other things
... 
>>> func2(3,3)
('x', 'y')
>>> 
>>> func2.__defaults__
(3,)

2 of 4

309

locals() returns a dictionary with local names:

def func(a, b, c):
    print(locals().keys())

prints the list of parameters. If you use other local variables those will be included in this list. But you could make a copy at the beginning of your function.

Discussions

Getting all arguments from a function call in python

If you for some reason want to get a list of all the arguments, but you don't want to have a variable amount with *args and **kwargs, then you can save the locals at the beginning of the function and use that. Example: >>> def test(a, b, c): ... args = locals() ... print(args) ... >>> test(1, 2, 3) {'a': 1, 'b': 2, 'c': 3} More on reddit.com

r/learnpython

13

3

May 23, 2021

python - How to print a function's arguments in the correct order? - Stack Overflow

I am trying to write in Python a function that whenever is called inside another function, say f, it prints the name of the function followed by the parameters with which it was called. As far as I... More on stackoverflow.com

stackoverflow.com

Maximum number of arguments in a print function

That's a really unusual question. In Python3+, print accepts *args, and as far as I know, args is only limited by how large a list you can store at once, which depends on many factors. If you want to try and find an answer anyway, you could always just generate massive lists and see if you can pass one big enough to make print give up. More on reddit.com

r/learnpython

11

8

October 9, 2017

Quick question for getting all arguments except last one

You don't need the arithmetic notation at all.

echo "${@:1:$#-1}"

nor do you need $, for a regular variable (only if explicit notation is required, as in ${#var} or ${str%%-*}). This goes for the index of an indexed array also, and no $ required inside arithmetic, eg:

num=4

echo "${array[num+2]} is the 7th element of the array (aka the value of array index 6)"

echo "${@:num:2} is the 4th and 5th argument to the script"

((num>0)) && echo "$num is a positive integer"

Note that if you use printf instead of echo, you'll have full control over the separator character, between the arguments (eg. printf '%s\n' "${@:1:$#-1} prints all args (but the last) on a new line.

Check out the parameter substitution section in man bash for more relevant info.

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