CODEWITHSUNDEEP
pythonwindowspython-3.xcompilationwindows-10
maxdownunder
maxdownunder

Reputation: 5639

Building python 3.6.6 from source on Win10

I've downloaded the python 3.6.6 source from here... https://www.python.org/downloads/release/python-366/ ...and followed the instruction on how to build on Windows (run ../PCbuild/build.bat). Python compiles and seems to be working (funny and scary: while fetching externals, it actually downloads python-3.7.0 as a dependency... :/ ). However, it looks like the build is somehow 'in place', and the binaries end up in some sub-folder of the source (../PCbuild/amd64/python.exe). This means I'm left with source and compiled code mixed up instead of some clean/lean and deployable package.

Or in general, is there a way of making the build process more behave like on linux?

Thanks for your help, Max

Upvotes: 2

Views: 2192

Answers (1)

J. Ramos
J. Ramos

Reputation: 63

The build.bat from PCBuild is intended for developers, that is, for testing purposes. What you want is under \Tools\msi\buildrelease.bat. This creates a subdirectory under \PCBuild\ that places all msi, cab and exe files ready for later installation. According to the readme, there doesn't seem to be an option to pack all those files in a single .exe file, like all installers eventually do, but another option is under \Tools\msi\build.bat which does have an option for packing (namely build.bat --pack). "But", the readme does state that the buildrelease.bat should be used for an official release. The advantage of doing so is that Pyhton would be optimized using PGO to your own hardware. I am also trying to compile from source using this method but I am having an issue with a recurring error (and other ones): 

PGO run did not succeed (no python36!*.pgc files) and there is no data to merge [E:\RepoGiT\3.6\PCbuild\pythoncore.vcxproj]

so, if you do go this route, and find this, or other errors, please send the bug report to python's bug tracker webpage. And better yet, if you find errors and their solution, please report back here!

Upvotes: 1

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