Convert SVG to PNG with Python on Windows

问题

Question: Which reproducible process can enable Windows Python users to render a SVG image into PNG?

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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.

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:

• 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
  

• Even once cairo is installed, rsvg (from main answers of Server-side SVG to PNG (or some other image format) in python, Convert SVG to PNG in Python) is not available for Windows:

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

• 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")
  

  Indeed:

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

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

回答1:

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

来源：https://stackoverflow.com/questions/65759849/convert-svg-to-png-with-python-on-windows