matplotlib保存bbox_inches=‘紧’和栅格化的错误

Question

当我运行光栅化示例在这里发现的并将bbox_inches='tight'参数添加到任何savefig()函数时，我会得到以下错误。还有其他人有这个问题吗？我找不到窃听器报告。Im使用matplotlib 1.4.0和python 2.7.6

Traceback (most recent call last):
  File "raster.py", line 45, in <module>
    plt.savefig("test_rasterization.pdf", dpi=150,bbox_inches='tight')
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 576, in savefig
    res = fig.savefig(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/figure.py", line 1470, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/backend_bases.py", line 2192, in print_figure
    **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/backends/backend_pdf.py", line 2469, in print_pdf
    self.figure.draw(renderer)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/artist.py", line 59, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/figure.py", line 1079, in draw
    func(*args)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/artist.py", line 59, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/axes/_base.py", line 2092, in draw
    a.draw(renderer)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/artist.py", line 58, in draw_wrapper
    before(artist, renderer)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/artist.py", line 43, in before
    renderer.start_rasterizing()
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/backends/backend_mixed.py", line 96, in start_rasterizing
    self._bbox_inches_restore)
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/tight_bbox.py", line 86, in process_figure_for_rasterizing
    r = adjust_bbox(figure, bbox_inches, fixed_dpi)
NameError: global name 'figure' is not defined

Answer 1

这是一个已知的bug (https://github.com/matplotlib/matplotlib/pull/3434)，已经修复(https://github.com/matplotlib/matplotlib/pull/3453)。

如果您可以编辑您的安装，您需要删除三个字符。您还可以下载相关代码更改(https://github.com/jowr/matplotlib/commit/2191358c4d0dd2a705c418376a8a0e9e22c4ca9d.diff)的差异，这些代码更改可以与修补程序一起应用。