[Python-ideas] Isolated (?transactional) exec (?subinterpreter) calls (original) (raw)
anatoly techtonik techtonik at gmail.com
Fri Jun 8 10:16:34 CEST 2012
- Previous message: [Python-ideas] functools.partial
- Next message: [Python-ideas] Isolated (?transactional) exec (?subinterpreter) calls
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Hi,
Having a lot of ideas is a curse, because I can barely follow up on them, but I try - I really read replies, just don't have enough energy to answer immediately (as it usually requires some time for research). Here is another one that ripes too long to become rotten:
Make exec(code[, globals[, locals]]) calls consistent, optionally isolated from parent environment and transactional.
Consistent:
- it should not matter if the code is executed with command line interpreter or from exec(), code should not be modified to successfully run in exec if it successfully runs in intepreter session http://bugs.python.org/issue13557 http://bugs.python.org/issue14049 http://bugs.python.org/issue1167300 http://bugs.python.org/issue991196
Optionally isolated from parent environment:
a feature to execute user script in a snapshot of current environment and have a choice whenever to merge its modifications back to environment or not
real user story - read system configuration settings, where
optional detection rules are written in Python (Blender/SCons build scripts) - autodetection probes can affect environment while detection takes place and it can lead to more problems later
(think of virtualenv on Python process level with defined dataexchange protocol through globals/locals variables)
Transactional:
- well, if it is isolated - it is already transactional - an ability to discard results if an error or an exception inside exec() occurs - getting back to the state right before exec.
-- anatoly t.
- Previous message: [Python-ideas] functools.partial
- Next message: [Python-ideas] Isolated (?transactional) exec (?subinterpreter) calls
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]