Tim gets his default traps.
diff --git a/Lib/decimal.py b/Lib/decimal.py
index 93a5e34..4e5cbbb 100644
--- a/Lib/decimal.py
+++ b/Lib/decimal.py
@@ -31,7 +31,7 @@
Here are some examples of using the decimal module:
>>> from decimal import *
->>> getcontext().prec=9
+>>> setcontext(ExtendedContext)
>>> Decimal(0)
Decimal("0")
>>> Decimal("1")
@@ -405,8 +405,8 @@
def setcontext(context):
"""Set this thread's context to context."""
- if context == DefaultContext:
- context = Context()
+ if context in (DefaultContext, BasicContext, ExtendedContext):
+ context = context.copy()
threading.currentThread().__decimal_context__ = context
def getcontext():
@@ -2960,28 +2960,30 @@
##### Setup Specific Contexts ################################
-_basic_traps = dict.fromkeys(Signals, 1)
-_basic_traps.update({Inexact:0, Rounded:0, Subnormal:0})
-
# The default context prototype used by Context()
# Is mutable, so than new contexts can have different default values
+_default_traps = dict.fromkeys(Signals, 0)
+_default_traps.update({DivisionByZero:1, Overflow:1, InvalidOperation:1})
+
DefaultContext = Context(
prec=28, rounding=ROUND_HALF_EVEN,
- trap_enablers=dict.fromkeys(Signals, 0),
+ trap_enablers=_default_traps,
flags=None,
_rounding_decision=ALWAYS_ROUND,
Emax=DEFAULT_MAX_EXPONENT,
Emin=DEFAULT_MIN_EXPONENT,
capitals=1
)
-DefaultContext.trap_enablers.update({ConversionSyntax : 1})
# Pre-made alternate contexts offered by the specification
# Don't change these; the user should be able to select these
# contexts and be able to reproduce results from other implementations
# of the spec.
+_basic_traps = dict.fromkeys(Signals, 1)
+_basic_traps.update({Inexact:0, Rounded:0, Subnormal:0})
+
BasicContext = Context(
prec=9, rounding=ROUND_HALF_UP,
trap_enablers=_basic_traps,