Macos Python 3.3+；Matplotlib 1.2.0:pdf导出生成'；str'；不支持缓冲区接口“；错误
我刚开始从matlab/mathematica迁移到python进行技术计算。我一直在学习如何使用matplotlib.pyplot包，希望有人能帮助我使用字体。我最终需要将图形输出保存为pdf或eps文件，以便在Adobe Illustrator中打开。最初，我的pdf和eps输出包含轮廓字体（而不是保留文本信息的嵌入式字体）。接下来，我得到了以下代码：Macos Python 3.3+；Matplotlib 1.2.0:pdf导出生成'；str'；不支持缓冲区接口“；错误,macos,fonts,python-3.x,matplotlib,adobe,Macos,Fonts,Python 3.x,Matplotlib,Adobe,我刚开始从matlab/mathematica迁移到python进行技术计算。我一直在学习如何使用matplotlib.pyplot包，希望有人能帮助我使用字体。我最终需要将图形输出保存为pdf或eps文件，以便在Adobe Illustrator中打开。最初，我的pdf和eps输出包含轮廓字体（而不是保留文本信息的嵌入式字体）。接下来，我得到了以下代码： import matplotlib as mpl import matplotlib.pyplot as plt # if I omit t
import matplotlib as mpl
import matplotlib.pyplot as plt
# if I omit the next line, the plot saves without error, but with outlined fonts
mpl.rcParams['pdf.fonttype'] = 42 #set Truetype fonts for Adobe
plt.plot(range(5),range(5),'r-')
plt.ylabel('y')
plt.xlabel('x')
plt.title('title')
plt.show()
plt.savefig("myfig.pdf")
Traceback (most recent call last):
File "<tmp 1>", line 11, in <module> plt.savefig("myfig.pdf")
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/pyplot.py", line 472, in savefig
return fig.savefig(*args, **kwargs)
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/figure.py", line 1364, in savefig
self.canvas.print_figure(*args, **kwargs)
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_qt4agg.py", line 161, in print_figure
FigureCanvasAgg.print_figure(self, *args, **kwargs)
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backend_bases.py", line 2093, in print_figure
**kwargs)
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backend_bases.py", line 1845, in print_pdf
return pdf.print_pdf(*args, **kwargs)
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_pdf.py", line 2307, in print_pdf
file.close()
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_pdf.py", line 507, in close
self.writeFonts()
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_pdf.py", line 607, in writeFonts
fonts[Fx] = self.embedTTF(realpath, chars[1])
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_pdf.py", line 1054, in embedTTF
return embedTTFType42(font, characters, descriptor)
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_pdf.py", line 987, in embedTTFType42
self.currentstream.write(unicode_cmap)
File "/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_pdf.py", line 379, in write
compressed = self.compressobj.compress(data)
TypeError: 'str' does not support the buffer interface
回溯（最近一次呼叫最后一次）：
文件“”，第11行，plt.savefig（“myfig.pdf”）
savefig中的文件“/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/pyplot.py”，第472行
返回图savefig（*args，**kwargs）
savefig中的文件“/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/figure.py”，第1364行
self.canvas.print_图（*args，**kwargs）
文件“/Applications/pyzo2013b/lib/python3.3/pyzo packages/matplotlib/backends/backend_qt4agg.py”，第161行，如图所示
图canvasagg.打印图（self，*args，**kwargs）
文件“/Applications/pyzo2013b/lib/python3.3/pyzo packages/matplotlib/backend_base.py”，第2093行，如图所示
**kwargs）
文件“/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backend_-bases.py”，第1845行，印刷版pdf
返回pdf.print_pdf（*args，**kwargs）
文件“/Applications/pyzo2013b/lib/python3.3/pyzo packages/matplotlib/backends/backend_pdf.py”，第2307行，印刷版_pdf
file.close（）文件
文件“/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_pdf.py”，第507行，关闭
self.writeFonts（）
文件“/Applications/pyzo2013b/lib/python3.3/pyzo packages/matplotlib/backends/backend_pdf.py”，第607行，以书面形式
fonts[Fx]=self.embeddettf（realpath，chars[1]）
embeddettf中的文件“/Applications/pyzo2013b/lib/python3.3/pyzo packages/matplotlib/backends/backend_pdf.py”，第1054行
返回embeddettftype42（字体、字符、描述符）
embeddettftype42中的文件“/Applications/pyzo2013b/lib/python3.3/pyzo packages/matplotlib/backends/backend_pdf.py”，第987行
self.currentstream.write（unicode\u cmap）
文件“/Applications/pyzo2013b/lib/python3.3/pyzo-packages/matplotlib/backends/backend_pdf.py”，第379行，以书面形式
压缩=自压缩对象压缩（数据）
TypeError:“str”不支持缓冲区接口
matplotlibmatplotlib