Henning von Bargen added the comment:
The online help says:
"""
When Python is hosted in another .exe (different directory, embedded via COM,
etc), the “Python Home” will not be deduced, so the core path from the registry
is used. Other “application paths” in the registry are always read.
"""
and
"""
If the environment variable PYTHONHOME is set, it is assumed as “Python Home”.
Otherwise, the path of the main Python executable is used to locate a “landmark
file” (Lib\os.py) to deduce the “Python Home”. If a Python home is found, the
relevant sub-directories added to sys.path (Lib, plat-win, etc) are based on
that folder. Otherwise, the core Python path is constructed from the PythonPath
stored in the registry.
"""
So I set PYTHONHOME=c:\python278, then call LisaReportingServer.exe again. Now
the output for sys.path looks OK to me, but "import hmac" still fails:
C:\Lisa\Kronos\reporting\test\bin>..\..\bin\win32-x86\LisaReportingAgent.exe
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit (Intel)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> for f in sys.path: print f
...
C:\Lisa\Kronos\reporting\test
C:\WINDOWS\system32\python27.zip
c:\python278\DLLs
c:\python278\lib
c:\python278\lib\plat-win
c:\python278\lib\lib-tk
C:\Lisa\Kronos\reporting\bin\win32-x86
c:\python278
c:\python278\lib\site-packages
c:\python278\lib\site-packages\win32
c:\python278\lib\site-packages\win32\lib
c:\python278\lib\site-packages\Pythonwin
>>> import hmac
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "c:\python278\lib\hmac.py", line 8, in <module>
from operator import _compare_digest as compare_digest
ImportError: cannot import name _compare_digest
>>>
----------
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue22139>
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