Dec 30, 2015 · Nov 24, 2015 · Nov 24, 2015 · Dec 13, 2015 · Dec 5, 2015 · Dec 22, 2015
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
        """
        # process the unit information
        if len(xranges):
            xdata =next(iter(xranges))
            xdata =cbook.safe_first_element(xranges)
        else:
            xdata = None
        if len(yrange):
            ydata =next(iter(yrange))
            ydata =cbook.safe_first_element(yrange)
        else:
            ydata = None
        self._process_unit_info(xdata=xdata,
                Name to use in ValueError if `inp` can not be normalized

            """
            if isinstance(x, np.ndarray) or not iterable(next(iter(inp))):
            if (isinstance(x, np.ndarray) or
                    not iterable(cbook.safe_first_element(inp))):
                # TODO: support masked arrays;
                inp = np.asarray(inp)
                if inp.ndim == 2:
diff --git a/lib/matplotlib/cbook.py b/lib/matplotlib/cbook.py
 from matplotlib.externals import six
 from matplotlib.externals.six.moves import xrange, zip
 from itertools import repeat
 import collections

 import datetime
 import errno
        return np.arange(y.shape[0], dtype=float), y


 def safe_first_element(obj):
    if isinstance(obj, collections.Iterator):
        raise RuntimeError("matplotlib does not support generators "
                           "as input")
    return next(iter(obj))


 def get_label(y, default_name):
    try:
        return y.name
diff --git a/lib/matplotlib/dates.py b/lib/matplotlib/dates.py
            x = x.ravel()

        try:
            x =next(iter(x))
            x =cbook.safe_first_element(x)
        except (TypeError, StopIteration):
            pass
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2331,11 +2331,11 @@ def broken_barh(self, xranges, yrange, **kwargs):
		"""
		# process the unit information
		if len(xranges):
		xdata =next(iter(xranges))
		xdata =cbook.safe_first_element(xranges)
		else:
		xdata = None
		if len(yrange):
		ydata =next(iter(yrange))
		ydata =cbook.safe_first_element(yrange)
		else:
		ydata = None
		self._process_unit_info(xdata=xdata,
Expand DownExpand Up		@@ -5886,7 +5886,8 @@ def _normalize_input(inp, ename='input'):
		Name to use in ValueError if `inp` can not be normalized

		"""
		if isinstance(x, np.ndarray) or not iterable(next(iter(inp))):
		if (isinstance(x, np.ndarray) or
		not iterable(cbook.safe_first_element(inp))):
		# TODO: support masked arrays;
		inp = np.asarray(inp)
		if inp.ndim == 2:
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -12,6 +12,7 @@
		from matplotlib.externals import six
		from matplotlib.externals.six.moves import xrange, zip
		from itertools import repeat
		import collections

		import datetime
		import errno
Expand DownExpand Up		@@ -2536,6 +2537,13 @@ def index_of(y):
		return np.arange(y.shape[0], dtype=float), y


		def safe_first_element(obj):
		if isinstance(obj, collections.Iterator):
		raise RuntimeError("matplotlib does not support generators "
		"as input")
		return next(iter(obj))


		def get_label(y, default_name):
		try:
		return y.name
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -1561,7 +1561,7 @@ def default_units(x, axis):
		x = x.ravel()

		try:
		x =next(iter(x))
		x =cbook.safe_first_element(x)
		except (TypeError, StopIteration):
		pass

Expand Down