Python script to write helper function callable from command line, somewhat plateforme independent (even Python2).

!please

#!/usr/bin/env python
# coding: utf-8

def default():
    _print("for a list of command use `python please _help`")
    _print("for help about a command use `python please _help,command`")

def do_example1():
    """ This is an example.

        Use `please do_example` (or `python please do_example` on Windows)
        to execute this function.
    """
    out = _path('tmp', 'out')
    if not _exists(out):
        _mkdir(out)
    _cd(out)
    _print(_cwd())

def do_example2(argA, argB, *args):
    """ This is an example with arguments.

        Every positional argument must be provided through command line:
        `please do_example2,valueA,valueB`             -> argA=valueA, argB=valueB, args=()
        `please do_example2,valueA`                    -> "missing 1 required positional argument"
        `please do_example2,valueA,valueB,more,values` -> argA=valueA, argB=valueB, args=(more,values)
    """
    _print("argA:", argA)
    _print("argB:", argB)
    _print("args:", args)

#--- python please do (v1.2)
try:
    _print=eval("print")
except Exception:
    def _print(*va,**kwa):print(kwa).get('sep'," ").join([str(v)for v in va])+kwa.get('end',"\n"),
_defined=list(filter(lambda s:not s.startswith('_'),globals().keys()));import os,sys,shutil;_exit=sys.exit;_path=os.path.join;_abspath=os.path.abspath;_relpath=os.path.relpath;_cd=os.chdir;_cwd=os.getcwd;_ls=os.listdir;_walk=os.walk;_mv=os.rename;_rm=os.remove;_cp=shutil.copy2;_isfile=os.path.isfile;_isdir=os.path.isdir;_mkdir=os.makedirs;_exists=os.path.exists;_cptree=lambda src,dst,ignore=lambda path,name:False:(_exists(dst)or not _mkdir(dst))and[_cptree(s,d,ignore)if _isdir(s)and(_exists(d)or not _mkdir(d))else _cp(s,d)for s,d in((_path(src, n),_path(dst, n))for n in _ls(src)if not ignore(src,n))];_rmtree=shutil.rmtree;_system=os.system;_system_verb=lambda command:[_print(command),os.system(command)][1];_nop=lambda:None
_help=lambda name="":help(globals()[name])if name else _print(*_defined)
_please=lambda dos:dict([(d[0],globals()[d.pop(0)](*d))for d in[do.split(",")for do in dos]])
if'__main__'==__name__:_=_please(sys.argv[1:]or['default']);_exit(next(iter(filter(None,_.values())),0)and _)

Please_Completion.ps1

# This can be added to the "profile.ps1".

# Custom completer for Python scripts like "python please [tab or ctrl+space]"
$_pyCompleterScriptBlock = {
    param ($commandName, $wordToComplete, $cursorPosition)

    $elements = $wordToComplete.CommandElements
    $script = $wordToComplete.CommandElements[1].Value

    switch ($script) {
        { $_ -ieq '.\please' -or $_ -ieq 'please' } {
            $word = $elements[$elements.Count-1].Value

            $please_help = python please _help
            $please_help = $please_help -split ' '

            if ($word -ieq $script) {
                $please_help
            } else {
                $please_help | Where-Object { $_ -like "$word*" }
            }
        }
        Default {}
    }
}
Register-ArgumentCompleter -Native -CommandName py -ScriptBlock $_pyCompleterScriptBlock
Register-ArgumentCompleter -Native -CommandName python -ScriptBlock $_pyCompleterScriptBlock