Question

我尝试运行此代码，用代码绘制一个简单的散点图：

plt.subplot(111)
plt.plot(x, y, linewidth=1.0)
plt.savefig('P_vs_time.pdf')

但是我收到以下错误：

      Traceback (most recent call last):
    File "~/python/test.py", line 295, in <module>
      plt.savefig('P_vs_time.pdf', bbox_inches='tight')
    File "/usr/lib/pymodules/python2.7/matplotlib/pyplot.py", line 561, in savefig
      return fig.savefig(*args, **kwargs)
    File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 1421, in savefig
      self.canvas.print_figure(*args, **kwargs)
    File "/usr/lib/pymodules/python2.7/matplotlib/backend_bases.py", line 2167, in print_figure
      **kwargs)
    File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 2358, in print_pdf
      file.close()
    File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 507, in close
      self.writeFonts()
    File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 607, in writeFonts
      fonts[Fx] = self.embedTTF(realpath, chars[1])
    File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 1008, in embedTTF
      ps_name = sfnt[(3,1,0x0409,6)].decode('utf-16be')
  KeyError: (3, 1, 1033, 6)

为什么会这样？

Answer 1

我认为问题在于您在创建绘图后没有添加plt.show()。所以试着这样做：

    plt.subplot(111)
    plt.plot(x, y, linewidth=1.0)
    plt.show()
    plt.savefig('P_vs_time.pdf')

matplotlib 1.3.1在pdf中保存数字不起作用

1 个答案: