我在运行 python 和 matplotlib 时遇到问题
from matplotlib import rc
import matplotlib.cm as cm
from matplotlib.ticker import MultipleLocator
scoreArray = [3,8,7,8,9,0]
scoreArrayIsopmap = [3,4,7,1,3,0]
scoreArrayPCA = [0,1,7,6,3,15]
rc('font',**{'family':'Bitstream Vera Sans','serif': ['Palatino']})
rc('text', usetex=True)
fig, (ax1) = plt.subplots(1,1, figsize=(7,5))
ax1.plot(range(0,6), scoreArray, color = 'b', ls='-', lw=4, alpha=0.7, label="A Priori Manifold")
ax1.plot(range(0,6), scoreArrayIsopmap, color = 'r', ls='-', lw=4, alpha=0.7, label="Isomap")
ax1.plot(range(0,6), scoreArrayPCA, color = 'g', ls='-', lw=4, alpha=0.7, label="PCA")
ax1.xaxis.set_major_locator(MultipleLocator(10))
ax1.grid(which='major', axis='x', linewidth=0.25, linestyle='-', color='0.75')
ax1.grid(True)
ax1.set_ylabel('Dunn Index')
ax1.set_xlabel('Number Of Components')
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
1419 self.set_frameon(frameon)
1420
-> 1421 self.canvas.print_figure(*args, **kwargs)
1422
1423 if frameon:
/usr/local/lib/python2.7/site-packages/matplotlib/backend_bases.pyc in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, **kwargs)
2218 orientation=orientation,
2219 bbox_inches_restore=_bbox_inches_restore,
-> 2220 **kwargs)
2221 finally:
2222 if bbox_inches and restore_bbox:
/usr/local/lib/python2.7/site-packages/matplotlib/backend_bases.pyc in print_pdf(self, *args, **kwargs)
1950 from backends.backend_pdf import FigureCanvasPdf # lazy import
1951 pdf = self.switch_backends(FigureCanvasPdf)
-> 1952 return pdf.print_pdf(*args, **kwargs)
1953
1954 def print_pgf(self, *args, **kwargs):
/usr/local/lib/python2.7/site-packages/matplotlib/backends/backend_pdf.pyc in print_pdf(self, filename, **kwargs)
2338 width, height, image_dpi, RendererPdf(file, image_dpi),
2339 bbox_inches_restore=_bbox_inches_restore)
-> 2340 self.figure.draw(renderer)
2341 renderer.finalize()
2342 finally:
/usr/local/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)
52 def draw_wrapper(artist, renderer, *args, **kwargs):
53 before(artist, renderer)
---> 54 draw(artist, renderer, *args, **kwargs)
55 after(artist, renderer)
56
/usr/local/lib/python2.7/site-packages/matplotlib/figure.pyc in draw(self, renderer)
1032 dsu.sort(key=itemgetter(0))
1033 for zorder, a, func, args in dsu:
-> 1034 func(*args)
1035
1036 renderer.close_group('figure')
/usr/local/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)
52 def draw_wrapper(artist, renderer, *args, **kwargs):
53 before(artist, renderer)
---> 54 draw(artist, renderer, *args, **kwargs)
55 after(artist, renderer)
56
/usr/local/lib/python2.7/site-packages/matplotlib/axes.pyc in draw(self, renderer, inframe)
2084
2085 for zorder, a in dsu:
-> 2086 a.draw(renderer)
2087
2088 renderer.close_group('axes')
/usr/local/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)
52 def draw_wrapper(artist, renderer, *args, **kwargs):
53 before(artist, renderer)
---> 54 draw(artist, renderer, *args, **kwargs)
55 after(artist, renderer)
56
/usr/local/lib/python2.7/site-packages/matplotlib/axis.pyc in draw(self, renderer, *args, **kwargs)
1087 ticks_to_draw = self._update_ticks(renderer)
1088 ticklabelBoxes, ticklabelBoxes2 = self._get_tick_bboxes(ticks_to_draw,
-> 1089 renderer)
1090
1091 for tick in ticks_to_draw:
/usr/local/lib/python2.7/site-packages/matplotlib/axis.pyc in _get_tick_bboxes(self, ticks, renderer)
1036 for tick in ticks:
1037 if tick.label1On and tick.label1.get_visible():
-> 1038 extent = tick.label1.get_window_extent(renderer)
1039 ticklabelBoxes.append(extent)
1040 if tick.label2On and tick.label2.get_visible():
/usr/local/lib/python2.7/site-packages/matplotlib/text.pyc in get_window_extent(self, renderer, dpi)
751 raise RuntimeError('Cannot get window extent w/o renderer')
752
--> 753 bbox, info, descent = self._get_layout(self._renderer)
754 x, y = self.get_position()
755 x, y = self.get_transform().transform_point((x, y))
/usr/local/lib/python2.7/site-packages/matplotlib/text.pyc in _get_layout(self, renderer)
318 tmp, lp_h, lp_bl = get_text_width_height_descent('lp',
319 self._fontproperties,
--> 320 ismath=False)
321 offsety = (lp_h - lp_bl) * self._linespacing
322
/usr/local/lib/python2.7/site-packages/matplotlib/backends/backend_pdf.pyc in get_text_width_height_descent(self, s, prop, ismath)
1945 def get_text_width_height_descent(self, s, prop, ismath):
1946 if rcParams['text.usetex']:
-> 1947 texmanager = self.get_texmanager()
1948 fontsize = prop.get_size_in_points()
1949 w, h, d = texmanager.get_text_width_height_descent(s, fontsize,
/usr/local/lib/python2.7/site-packages/matplotlib/backend_bases.pyc in get_texmanager(self)
612 if self._texmanager is None:
613 from matplotlib.texmanager import TexManager
--> 614 self._texmanager = TexManager()
615 return self._texmanager
616
/usr/local/lib/python2.7/site-packages/matplotlib/texmanager.pyc in __init__(self)
170 if len(ff) == 1 and ff[0].lower() in self.font_families:
171 self.font_family = ff[0].lower()
--> 172 elif ff.lower() in self.font_families:
173 self.font_family = ff.lower()
174 else:
AttributeError: 'list' object has no attribute 'lower'
我得到了上面的图像，但轴不可见。我运行 python 2.7.5 和 matplotlib 1.3。我在 Mac 上工作，它在不同的 Mac 上工作正常。直到 2 天前，它对我的工作正常。
有人知道为什么会这样吗？