Didymus wrote:
> Greetings,
>
> I might be barking up the wrong tree, but was wondering if there's a way
> to have the argpasre epilog call a function. for example:
>
> epilog=Examples()
>
> Where Examples is:
>
> def Examples():
> text = """Lots of examples"""
> print(text.format())
>
> I've place this in and found that it prints out no matter if I use the -h
> or not and also it prints first.... If I do:
>
> epilog='Single Example'
>
> it works as intended, unfortunately, I need to show several examples. Just
> wondering if someone has found a why to do this (without making a custom
> help).
Here's a way using a custom *formatter*:
$ cat epilog.py
import argparse
class MyHelpFormatter(argparse.HelpFormatter):
def add_text(self, text):
if callable(text):
text = text()
return super().add_text(text)
def examples():
return "yadda yadda"
parser = argparse.ArgumentParser(
epilog=examples,
formatter_class=MyHelpFormatter
)
parser.add_argument("--foo")
parser.parse_args()
$ python3 epilog.py -h
usage: epilog.py [-h] [--foo FOO]
optional arguments:
-h, --help show this help message and exit
--foo FOO
yadda yadda
$
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