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argdown-0.0.1
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Markdown export for the argparse module
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | argdown-0.0.1 |
| نام | argdown |
| نسخه کتابخانه | 0.0.1 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Rebecca Turner |
| ایمیل نویسنده | - |
| آدرس صفحه اصلی | https://github.com/9999years/argdown |
| آدرس اینترنتی | https://pypi.org/project/argdown/ |
| مجوز | MIT |
argdown
#######
Argdown is an extension to Python’s argparse_ module that adds Markdown and RST
documentation export.
The argparse module is great at generating command-line usage and help texts,
but pasting pre-formatted and indented terminal output into a ``readme.md`` is
quite ugly. argdown is a python module that provides a function
``argdown.md_help(parser)`` that accepts an ``ArgumentParser`` object and
returns a string of lovely help text.
Argdown requires a fully formed ArgumentParser object, after all the
``add_argument()`` s have been executed. The only way to make sure the
ArgumentParser object is created in the same way that it would be during normal
script execution is to execute the script until the arguments are parsed. To do
this, argdown reads the input file(s) until it reads a line containing
``.parse_args(``. The rest of the file, being irrelevant to the command-line
invocation, is truncated, and a call to ``argdown.md_help()`` is inserted to
generate the Markdown from the parser. It is important to note that this means
the whole script up until the call to ``parse_args`` is executed in its
entirety, including any side-effects that may entail — argdown does not
attempt to sanitize the code in any way.
There are two ways to use argdown — from the command-line, as detailed in the
Arguments and Usage section, and for more persistent behavior, from a similar
``.argdown`` file, as detailed in the ``.argdown`` section.
``.argdown``
############
A ``.argdown`` file is a python literal and may be a list of preference-dicts
or a single preference-dict.
Here’s an example ``.argdown`` preference-dict with all possible values /
options filled in — any keys ommitted will default to these values (except for
``options``, which defaults to the empty set — all options are shown here for
reference purposes). If ``use-stdin`` is present in the ``options`` key, the
contents of the ``files`` key are discarded. No keys are mandatory, and an
``.argdown`` consisting of an empty dict corresponds to the behavior of running
``argdown`` from the command-line, with the exception of the command-line
invocation not executing all ``.py`` files in the current directory.
::
{
'files': ['*.py'],
'options': {
'use-stdin', 'spacey', 'rst', 'hide-default', 'truncate-help'
},
'header': 'Arguments and Usage',
'usage-header': 'Usage',
'ref-header': 'Quick reference table',
'args-header': 'Arguments',
'hierarchy': '#=-*+.',
'header-depth': 1
'encoding': 'utf-8',
'function': None
}
Any command-line arguments (see below) will override their corresponding values
in all of a ``.argdown``’s preference-dicts.
Note that the ``.argdown`` will be parsed as Python code using
|ast.literal_eval|_, so feel free to use comments, raw strings, or other
Python niceties. Function calls won’t be executed, however.
Arguments and Usage
###################
Usage
=====
::
usage: argdown [-h] [-] [--license] [--header HEADER]
[--usage-header USAGE_HEADER] [--ref-header REF_HEADER]
[--args-header ARGS_HEADER] [-s] [-r] [-e HIERARCHY] [-d] [-t]
[--header-depth HEADER_DEPTH] [--encoding ENCODING]
[-f FUNCTION] [-v]
[src_file [src_file ...]]
Arguments
=========
Quick reference table
---------------------
+------+-------------------+-------------------------+---------------------------+
|Short |Long |Default |Description |
+------+-------------------+-------------------------+---------------------------+
|``-h``|``--help`` | |Show help |
+------+-------------------+-------------------------+---------------------------+
|``-`` | | |Read from STDIN |
+------+-------------------+-------------------------+---------------------------+
| |``--license`` | |Print license |
+------+-------------------+-------------------------+---------------------------+
| |``--header`` |``Arguments and Usage`` |Header text |
+------+-------------------+-------------------------+---------------------------+
| |``--usage-header`` |``Usage`` |Header text |
+------+-------------------+-------------------------+---------------------------+
| |``--ref-header`` |``Quick reference table``|Header text |
+------+-------------------+-------------------------+---------------------------+
| |``--args-header`` |``Arguments`` |Header text |
+------+-------------------+-------------------------+---------------------------+
|``-s``|``--spacey`` | |Blank lines after headers |
+------+-------------------+-------------------------+---------------------------+
|``-r``|``--rst`` | |Generate rst |
+------+-------------------+-------------------------+---------------------------+
|``-e``|``--hierarchy`` |``#=-*+.`` |rst header order |
+------+-------------------+-------------------------+---------------------------+
|``-d``|``--hide-default`` | |Hide default arg values |
+------+-------------------+-------------------------+---------------------------+
|``-t``|``--truncate-help``| |Truncate help in this table|
+------+-------------------+-------------------------+---------------------------+
| |``--header-depth`` |``1`` |Header depth of top header |
+------+-------------------+-------------------------+---------------------------+
| |``--encoding`` |``utf-8`` |Input file encoding |
+------+-------------------+-------------------------+---------------------------+
|``-f``|``--function`` |``None`` |Function to call in file |
+------+-------------------+-------------------------+---------------------------+
|``-v``|``--version`` | |Show version |
+------+-------------------+-------------------------+---------------------------+
``-h``, ``--help``
------------------
show this help message and exit
``-``
-----
Read from STDIN instead of a file.
``--license``
-------------
Print license information (MIT) and exit.
``--header`` (Default: Arguments and Usage)
-------------------------------------------
Header text for the `Arguments and Usage` section.
``--usage-header`` (Default: Usage)
-----------------------------------
Header text for the `Usage` section.
``--ref-header`` (Default: Quick reference table)
-------------------------------------------------
Header text for the `Quick reference table` section, a simple table of all the
arguments.
``--args-header`` (Default: Arguments)
--------------------------------------
Header text for the `Arguments` section, a detailed listing of all the
arguments.
``-s``, ``--spacey``
--------------------
Output a blank line after headers.
``-r``, ``--rst``
-----------------
Generate rst (reStructured Text) instead of Markdown.
``-e``, ``--hierarchy`` (Default: ``#=-*+.``)
---------------------------------------------
Order of header characters to use for rst output.
``-d``, ``--hide-default``
--------------------------
Don't output default values for the arguments.
``-t``, ``--truncate-help``
---------------------------
Truncate help in the `Quick reference table` section so that the table's width
doesn't exceed `--width`. Makes terminal output prettier but means you'll
probably have to re-write help messages.
``--header-depth`` (Default: 1)
-------------------------------
Header depth; number of hashes to output before the top-level header.
``--encoding`` (Default: utf-8)
-------------------------------
Encoding of all input files. Frankly, there's no excuse to ever use this
argument
``-f``, ``--function`` (Default: None)
--------------------------------------
Function to be called to parse args. For example, if the arg-parsing mechanism
is contained in a `console()` function (common if the script is a module and
has a console entry point defined), enter `--function console` if `console()`
must be called to define the argument parser.
``-v``, ``--version``
---------------------
show program's version number and exit
Toy test usage
##############
If a file ``test.py`` reads ::
import argparse
import argdown
parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('integers', metavar='N', type=int, nargs='+',
help='an integer for the accumulator')
parser.add_argument('--sum', dest='accumulate', action='store_const',
const=sum, default=max,
help='sum the integers (default: find the max)')
args = parser.parse_args()
Then running ::
argdown test.py
Will output ::
# Arguments and Usage
## Usage
```
usage: argdown [-h] [--sum] N [N ...]
```
## Arguments
### Quick reference table
|Short|Long |Default |Description
|-----|--------|-----------------------|----------------------------------------
|`-h` |`--help`| |show this help message and exit
| |`--sum` |<built-in function max>|sum the integers (default: find the max)
### `-h`, `--help`
show this help message and exit
### `--sum` (Default: <built-in function max>)
sum the integers (default: find the max)
Short Descriptions
##################
1. check for .short_descriptions file
2. check for passed filename
::
if 'argdown' in globals():
short_descriptions = {
'--help': 'Show help',
'-': 'Read from STDIN',
'--license': 'Print license',
'--header': 'Header text',
'--usage-header': 'Header text',
'--ref-header': 'Header text',
'--args-header': 'Header text',
'--spacey': 'Blank lines after headers',
'--rst': 'Generate rst',
'--hierarchy': 'rst header order',
'--hide-default': 'Hide default arg values',
'--truncate-help': 'Truncate help in this table',
'--header-depth': 'Header depth of top header',
'--encoding': 'Input file encoding',
'--function': 'Function to call in file',
'--version': 'Show version',
}
Known bugs
##########
There are no known bugs.
Unknown bugs
############
Probably a lot. This script was built to handle the subset of ``argparse``’s
features that I use, so I imagine there are areas in which ``argdown`` performs
poorly. Please open an issue if you find something.
Missing features
################
The quick reference table output isn’t great; see above where the ``Default``
column is included despite containing no content.
Currently, without ``truncate_help=False`` passed to ``argdown.md_help``, the
description field at the end of the table is truncated to the width of the
terminal to prevent the table from looking awful. I’d like to add a feature to
pass a dict of short descriptions to improve that in the future.
License
#######
MIT, see ``license.txt``
.. |argparse| replace:: ``argparse``
.. _argparse: https://docs.python.org/3/library/argparse.html
.. _license.txt: blob/master/license.txt
.. |ast.literal_eval| replace:: ``ast.literal_eval``
.. _ast.literal_eval: https://docs.python.org/3/library/ast.html#ast.literal_eval
نحوه نصب
نصب پکیج whl argdown-0.0.1:
pip install argdown-0.0.1.whl
نصب پکیج tar.gz argdown-0.0.1:
pip install argdown-0.0.1.tar.gz