[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Steve Dower added the comment: The UCRT can no longer fail to install - we do an app-local install on Win 8.1, and it's already present on Win 10. -- resolution: -> fixed stage: -> resolved status: open -> closed ___ Python tracker

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Eryk Sun added the comment: Maybe it's worth adding a recommendation in the docs to reboot and try to repair an installation that fails in the final stage due to ucrt not being fully installed yet, i.e. missing api-ms-win-crt-*.dll. Or maybe this case can be detected and display a message

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Marius Gedminas added the comment: For the record, I rebooted once, after installing both 32-bit and 64-bit versions of Python 3.5. (Also, it seems that the Python 3.5 installer didn't install pip for me, which could be fallout from this bug? I had to run python -m ensurepip to get it.)

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

eryksun added the comment: > The problem here is probably that installing the CRT update > required a restart I saw that, but it didn't make any sense to me that the DLL isn't available immediately after wusa.exe exits. Is it in limbo until the system is restarted? I know in Windows 10 these

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Steve Dower added the comment: The problem here is probably that installing the CRT update required a restart (see the line below from the log), but we didn't interrupt installation to make you restart before continuing. >From the first log file: [0A68:0EC8][2015-09-14T05:54:24]i319: Applied

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Steve Dower added the comment: Windows Updates may do something different here. I'd guess it's added to a queue and will be installed on next restart, probably based on something it detected as being in use, or maybe just because it's a server OS (or possibly both - typically a reboot isn't

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

eryksun added the comment: Per "Python 3.5.0 (32-bit)_20150914055131.log", the installer detects the OS as NT 6.2.9200 (Windows 8/Server 2012), and installs Windows8-RT-KB2999226-x64.msu. [0A68:0EC8][2015-09-14T05:51:31]i001: Burn v3.10.0.1823, Windows v6.2 (Build 9200:

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Marius Gedminas added the comment: Yes, it exists: http://imgur.com/YCmApN7 -- ___ Python tracker ___ ___

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Terry J. Reedy added the comment: Pre-compiling should generally not be needed; I try to remember to uncheck it. If you do want everything compiled, read the doc for compileall module. -- nosy: +terry.reedy ___ Python tracker

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

eryksun added the comment: There should be a bunch of logs named "Python 3.5.0*.log" in your user's %TEMP% directory. If you don't mind, zip them up and attach the file to this issue for Steve Dower to review when he returns from vacation. In the mean time, try directly installing the

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

eryksun added the comment: > Pre-compiling should generally not be needed It's a useful optimization if Python is installed to a directory that doesn't grant write access to regular users, such as %ProgramFiles%. -- ___ Python tracker

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Changes by Marius Gedminas : Added file: http://bugs.python.org/file40487/Python 3.5.0 installer crash logs.zip ___ Python tracker ___

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Changes by Zachary Ware : -- components: +Windows nosy: +paul.moore, steve.dower, tim.golden, zach.ware ___ Python tracker ___

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

New submission from Marius Gedminas: I installed Python 3.5 on a Windows Server 2012 VM, twice (once the 32-bit, and once the 64-bit version). When it started throwing error dialogs at me, I started taking screenshots: http://imgur.com/a/zwfz4. What happened: - I selected advanced

[issue25117] Windows installer: precompiling stdlib fails with missing DLL errors

Changes by Aaron Meurer : -- nosy: +Aaron.Meurer ___ Python tracker ___ ___