在Windows上使用Python将SVG转换为PNG [英] Convert SVG to PNG with Python on Windows

问题描述

问题:哪种可重现的过程可以使Windows Python用户将SVG图像渲染为PNG?

许多问题/答案(例如将SVG转换为Python中的PNG 和服务器端SVG转换为PNG(或其他某种图像格式)(由于以下原因而不能重复)，解释了如何使用Python将SVG转换为PNG.

Many questions/answers (such as Convert SVG to PNG in Python and Server-side SVG to PNG (or some other image format) in python, which are not duplicates for the reasons explained below) explain how to convert a SVG to PNG with Python.

不幸的是，它们都不是可立即用于Python + Windows 的.经过20多分钟，以及许多不同的尝试，我仍然无法做到这一点.有关失败尝试的更多详细信息:

Unfortunately, none of them are ready-to-use for Python + Windows. After more than 20 minutes, and many different attempts, I'm still unable to do it. More details about failing attempts:

• 在Windows上安装 cairo 并不容易，我们必须使用Gohlke的二进制文件

• Installing cairo on Windows is not straightforward, we have to use Gohlke's binaries Intalling pycairo with Python 3.7 on Windows :

pip install pycairo-1.20.0-cp37-cp37m-win_amd64.whl

即使安装了 cairo ， rsvg (来自将SVG转换为Python中的PNG ):

pip install rsvg   # or pyrsvg
> ERROR: No matching distribution found for pyrsvg

使用 svglib 或 reportlab 的解决方案在Python3 + Windows上无法即用:

Solutions with svglib or reportlab don't work out-of-the-box on Python3 + Windows:

from svglib.svglib import svg2rlg
from reportlab.graphics import renderPDF, renderPM
drawing = svg2rlg("a.svg")
renderPM.drawToFile(drawing, "file.png", fmt="PNG")

确实:

AttributeError: 'Image' object has no attribute 'fromstring'

因此，针对Windows的解决方案会有所帮助.

So a solution - specific for Windows - would be helpful.

推荐答案

根据评论，解决方案是安装 svglib 版本1.0.1和 reportlab 3.5.59

From the comments, the solution was to install svglib version 1.0.1 and reportlab 3.5.59.

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