http://cia.vc/stats/author/samuel.iseli6 Roundup Reactor for CIA 69784 Python #13889 roundup samuel.iseli str(float) and round(float) issues with FPU precision Completed the patch by adding the rounding-control bits to the mask (_MCW_RC) and making sure the macros only get defined for MS-VC compiler (#ifd ... http://bugs.python.org/issue13889 1328582892 Roundup Reactor for CIA 69784 Python #13889 roundup samuel.iseli str(float) and round(float) issues with FPU precision I can run the tests on 32bit. Would be nice if somebody else could do this on 64bit (my VS2008 machine is currently on 32bit-Windows). http://bugs.python.org/issue13889 1328522620 Roundup Reactor for CIA 69784 Python #13889 roundup samuel.iseli str(float) and round(float) issues with FPU precision There's an excess space after a line continuation backslash in my last patch, so it doesn't compile (pyport.h, line 567). Here's an additional pa ... http://bugs.python.org/issue13889 1328295459 Roundup Reactor for CIA 69784 Python #13889 roundup samuel.iseli str(float) and round(float) issues with FPU precision I would definitely classify this as a bug in Python 2.7 as it breaks backwards-compatibility for embedding environments that default to 64bit FPU ... http://bugs.python.org/issue13889 1328289173 Roundup Reactor for CIA 69784 Python #13889 roundup samuel.iseli str(float) and round(float) issues with FPU precision Hi Marc, the changes to the pythoncore.vcproj Visual-Studio file define the HAVE_VC_FUNC_FOR_X87 symbol. I use this symbol to enable the precision ... http://bugs.python.org/issue13889 1327886152 Roundup Reactor for CIA 69784 Python #13889 roundup samuel.iseli str(float) and round(float) issues with FPU precision [new] We are using python as an embedded scripting environment in our ERP-product. Since upgrading to python2.7 we have serious issues with float ... http://bugs.python.org/issue13889 1327688137