[matplotlib-devel] 'LogLocator' object has no attribute 'set_params'

[Pierre H. <pie...@cr...>]

Hello,

I was wondering if the following behavior is a bug of LogLocator class 
or just a known limitation:
(mpl 1.3.1)

Input:

    plt_scale = 'log'
    #plt_scale = 'linear'

    fig, (ax1) = plt.subplots(1, 1)

    ax1.set(yscale=plt_scale)

    # works for linear scale, not for log:
    ax1.axes.locator_params('y', nbins=5)



Result:

    AttributeError                            Traceback (most recent
    call last)
    <ipython-input-74-3492af5f93c8> in <module>()
           7
           8 # works for linear scale, not for log:
    ----> 9 ax1.axes.locator_params('y', nbins=5)

    /home/pierre/anaconda/lib/python2.7/site-packages/matplotlib/axes.pyc in
    locator_params(self, axis, tight, **kwargs)
        2305 self.xaxis.get_major_locator().set_params(**kwargs)
        2306         if _y:
    -> 2307 self.yaxis.get_major_locator().set_params(**kwargs)
        2308         self.autoscale_view(tight=tight, scalex=_x, scaley=_y)
        2309

    AttributeError: 'LogLocator' object has no attribute 'set_params'


What I get from the traceback is that `locator_params` method forwards 
the locator attributes (in my case `nbins`) to the actual locator object 
via its `set_params` method. And this method is missing from LogLocator
So my question is: shouldn't all Locator subclasses have a `set_params` 
method ?

best,
Pierre

(set_params is indeed defined in 
MaxNLocatorhttps://github.com/matplotlib/matplotlib/blob/master/lib/matplotlib/ticker.py#L1297)