From: Raymond Hettinger Date: Wed, 14 Jul 2004 21:06:55 +0000 (+0000) Subject: Improve examples for working with the context API. X-Git-Tag: v2.4a2~262 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=92960239388cb1714115ad2e7dd7767cc5c4e0eb;p=python Improve examples for working with the context API. --- diff --git a/Doc/lib/libdecimal.tex b/Doc/lib/libdecimal.tex index 562aae6200..cf21b8dbd9 100644 --- a/Doc/lib/libdecimal.tex +++ b/Doc/lib/libdecimal.tex @@ -179,7 +179,7 @@ Decimal("19.29") '1.34' >>> float(a) 1.3400000000000001 ->>> round(a, 1) +>>> round(a, 1) # round() first converts to binary floating point 1.3 >>> int(a) 1 @@ -217,9 +217,6 @@ because many of the traps are enabled: \begin{verbatim} >>> myothercontext = Context(prec=60, rounding=ROUND_HALF_DOWN) ->>> myothercontext -Context(prec=60, rounding=ROUND_HALF_DOWN, Emin=-999999999, Emax=999999999, - capitals=1, flags=[], traps=[]) >>> setcontext(myothercontext) >>> Decimal(1) / Decimal(7) Decimal("0.142857142857142857142857142857142857142857142857142857142857") @@ -855,10 +852,13 @@ started so that there won't be a race condition between threads calling \begin{verbatim} # Set applicationwide defaults for all threads about to be launched -DefaultContext = Context(prec=12, rounding=ROUND_DOWN, traps=[InvalidOperation]) +DefaultContext.prec = 12 +DefaultContext.rounding = ROUND_DOWN +DefaultContext.traps = ExtendedContext.traps.copy() +DefaultContext.traps[InvalidOperation] = 1 setcontext(DefaultContext) -# Afterward, the threads can be started +# Afterwards, the threads can be started t1.start() t2.start() t3.start()