From: Raymond Hettinger <python@rcn.com>
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()