fastcache is a library you can install that will make the new caching in 0.7.6 faster, since it is written in C. I don't know how it handles threads.
Aaron Meurer On Wed, Feb 25, 2015 at 3:33 PM, Paul Royik <[email protected]> wrote: > I'm using 0.7.6, but didn't hear about fastcache. > Can you tell me what is it. > > Also, can you tell me will be there cache mixing in multithreaded > environment like mod_wsgi? > > On Wednesday, February 25, 2015 at 10:58:53 PM UTC+2, Aaron Meurer wrote: >> >> Are you using 0.7.6 (note that it introduced a new cache)? And if so, >> are you using fastcache? >> >> Aaron Meurer >> >> On Wed, Feb 25, 2015 at 10:04 AM, Paul Royik <[email protected]> wrote: >> > It appeared, that problem is with cache. >> > Clearing cache solves the problem. >> > >> > Now, I want to ask, how cache is working in multithreaded environment? >> > Do all people share same cache? >> > >> > >> > On Wednesday, February 25, 2015 at 4:11:03 PM UTC+2, Paul Royik wrote: >> >> >> >> Hello. >> >> >> >> I recently needed to make all variables in expression positive. >> >> >> >> I do this like following: >> >> >> >> f = log(x) >> >> a=Wild('a') >> >> symbols = f.free_symbols >> >> for symbol in symbols: >> >> f = f.subs(symbol, dummy) >> >> f = f.subs(symbol, sympy.Symbol(symbol.name, positive=True)) >> >> >> >> >> >> Now, when I do f.replace(log(a), log(Abs(a))) it shows log(x) as >> >> expected, >> >> since x is positive >> >> Now, make inverse process: convert positive to any >> >> >> >> for symbol in symbols: >> >> f = f.subs(symbol, dummy) >> >> f = f.subs(symbol, sympy.Symbol(symbol.name)) >> >> >> >> But f.replace(log(a), log(Abs(a))) shows log(x) and in debugger x is >> >> still >> >> positive. >> >> >> >> Setting f.subs(symbol, sympy.Symbol(symbol.name, positive=None)) >> >> doesn't >> >> help. >> >> Helps following: >> >> f.subs(symbol, sympy.Symbol(symbol.name, positive=False)) >> >> But I don't want negative variable. >> >> How can I just reset assumptions? >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "sympy" group. >> > To unsubscribe from this group and stop receiving emails from it, send >> > an >> > email to [email protected]. >> > To post to this group, send email to [email protected]. >> > Visit this group at http://groups.google.com/group/sympy. >> > To view this discussion on the web visit >> > >> > https://groups.google.com/d/msgid/sympy/300957bd-6491-4a70-98b1-1fe7edde327b%40googlegroups.com. >> > >> > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/dfd961fc-ef83-4a54-aadf-9c9c37715670%40googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6%2BTMLwdQ5%3D5%3DDN-R_184sKYOOfLzcvrthYVZq9FfQ6Uww%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
