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I downloaded QGIS MacOS installer version 3.2. I downloaded and installed Python 3.7 as instructed before I started the installation of QGIS. I was able to install GDAL but when I try to install QGIS I get the error message that says "QGIS requires Python 3.6."

Does this mean I need to install an earlier version of Python?

If so, which version should I install?

I see there are multiple versions of Python 3.6.

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  • I don't think the subversion matters, but yes, I think you should install python 3.6(.X), but first uninstall 3.7, having multiple python installs can cause problems.
    – Michael Stimson
    Commented Aug 2, 2018 at 3:27
  • I used Python 3.6.6 as recommended and it worked. Thank you!!
    – Shino Tanikawa
    Commented Aug 4, 2018 at 13:55
  • gis.stackexchange.com/help/someone-answers
    – user2856
    Commented Aug 5, 2018 at 9:47

1 Answer 1

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The minor version matters, it must be 3.6. The patch version usually does not (3.6.N), but QGIS.org specifies 3.6.5 as a minimum.

You can not use Python 3.7 or non-python.org distributions (note: some people have reported mucking around with symlinks to mimic a standard python.org 3.6 install path to get python 3.6 from homebrew/anaconda working).

From the download instructions on QGIS.org:

This package uses the python.org Python 3.6, at least version 3.6.5, the "macosx10.9" build - other distributions are not supported.

As of today, the package you need is:

Python 3.6.8 - 2018-12-24 macOS 64-bit installer (NOT the macOS 64-bit/32-bit installer).

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  • I missed that "fine print". Thank you so much. It worked!
    – Shino Tanikawa
    Commented Aug 4, 2018 at 13:56
  • This should be marked as answer
    – Devils Dream
    Commented Jan 22, 2019 at 13:03
  • As of today, version 3.6.8 is the current one. Answer should point to python.org/downloads
    – Telmo Pimentel Mota
    Commented Jan 25, 2019 at 11:48
  • @TelmoPimentelMota you are welcome to edit questions here.
    – user2856
    Commented Jan 25, 2019 at 23:07

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