gistfile1.txt

def run_tight(*args, **kwargs):
    """
        Pass this function a kwarg like set="abc" where "abc" is picked from this list:
        r = show running
        R = hide running
        e = show stderr
        E = hide stderr
        o = show stdout
        O = hide stdout
        p = pty=True
        P = pty=False
        w = warn_only=True
        W = warn_only=False

        The default is reopW.  Don't screw around with setting both r and R, who knows what happens.
    """
    
    words = {"r": "running", 
             "e": "stderr",
             "o": "stdout",
             "p": "pty",
             "w": "warn_only"}

    set_string = kwargs["set"]
    del kwargs["set"]

    #set defaults
    if "r" not in set_string.lower():
        set_string += "r"
    if "e" not in set_string.lower():
        set_string += "e"
    if "o" not in set_string.lower():
        set_string += "o"
    if "p" not in set_string.lower():
        set_string += "p"
    if "w" not in set_string.lower():
        set_string += "W"

    show_words = []
    hide_words = []
    new_settings = {}
    new_kwargs = {}
    
    for char in set_string:
        #show settings
        if char in "reo":
            show_words.append(words[char])
        #hide settings
        elif char in "REO":
            hide_words.append(words[char.lower()])
        #things that get passed in settings
        elif char in "w":
            new_settings[words[char]]=True
        elif char in "W":
            new_settings[words[char.lower()]]=False
        #things that get passed as kwargs
        elif char in "p":
            new_kwargs[words[char]]=True
        elif char in "P":
            new_kwargs[words[char.lower()]]=False
            
    with settings(hide(*hide_words), show(*show_words), **new_settings):
        return run(*args, **dict(new_kwargs, **kwargs))