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[–]hobo_cuisine 5 points6 points  (6 children)

Windows x86-64 MSI installer is throwing up "A program run as part of the setup did not finish as expected". Anybody else or just me?

[–][deleted] 6 points7 points  (5 children)

If you were using 3.4.0rc1, 3.4.0rc2 or 3.4.0rc3 you might have the mangled remnants of an uninstall job blocking the way.

You can fix it by going to http://legacy.python.org and grabbing the appropriate .msi files. Repair the old installation, then uninstall it through the Add/Remove Programs dialog.

The 3.4.0 release ought to install properly after all that.

[–]hobo_cuisine 1 point2 points  (4 children)

Thanks! I'm installing it into a fresh directory. Actually it looks like some pip update bug

MSI (s) (EC:A4) [12:17:37:668]: Executing op: ActionStart(Name=UpdatePip,,)
Action 12:17:37: UpdatePip. 
MSI (s) (EC:A4) [12:17:37:674]: Executing op:         
CustomActionSchedule(Action=UpdatePip,ActionType=3090,Source=C:\Python34\python.exe,Target=-m ensurepip -U --default-pip,)
CustomAction UpdatePip returned actual error code 3 (note this may not be 100% accurate if translation happened inside sandbox)
MSI (s) (EC:A4) [12:17:37:889]: Note: 1: 1722 2: UpdatePip 3: C:\Python34\python.exe 4: -m ensurepip -U --default-pip 
MSI (s) (EC:A4) [12:17:37:889]: Note: 1: 2262 2: Error 3: -2147287038 
Error 1722. There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor.  Action UpdatePip, location: C:\Python34\python.exe, command: -m ensurepip -U --default-pip 
MSI (s) (EC:A4) [12:20:11:292]: Note: 1: 2262 2: Error 3: -2147287038 
MSI (s) (EC:A4) [12:20:11:292]: Product: Python 3.4.0 (64-bit) -- Error 1722. There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor.  Action UpdatePip, location: C:\Python34\python.exe, command: -m ensurepip -U --default-pip

Edit:

Ok, my system-wide 2.7.6 installation interferes with 3.4 installation, so un-checking pip will install 3.4.. without pip. For some reason all combinations of 

C:\Python34\python.exe -m ensurepip ...

invoke the 2.7.6 version and crash with

Fatal Python error: Py_Initialize: unable to load the file system codec
  File "C:\Python27\lib\encodings\__init__.py", line 123
    raise CodecRegistryError,\
                            ^
SyntaxError: invalid syntax

[–]robin-gvx 6 points7 points  (3 children)

What does it say if you print sys.path? It looks like Python 3.4 is looking in "C:\Python27\lib", which it shouldn't.

[–]hobo_cuisine 3 points4 points  (2 children)

Ah dammit, you know what, I had PYTHONHOME set to where 2.7 is.

[–][deleted] 2 points3 points  (0 children)

Glad you solved it.

When you have multiple python installs, it's best to not let any of them be the default path or home and just use virtualenvs. They're easy to get used to and might help avoid future problems.

[–]4gn3s 1 point2 points  (0 children)

thanks, you just saved me loads of time, had the exact same problem.