diff options
-rw-r--r-- | CHANGES | 2 | ||||
-rw-r--r-- | pyasn1/debug.py | 7 |
2 files changed, 4 insertions, 5 deletions
@@ -34,7 +34,7 @@ Revision 0.1.8 - More Python magic methods implementations added to Integer & Real classes (e.g. __pos__, __neg__, __round__, __floor__, __ceil__, __trunc__) - The Integer.__invert__ Python magic method implemented. -- Handle the case of absent stderr stream at Debug printer. +- Handle the case of null writer at Debug printer. - Fix to NamedType.__repr__() to work properly. - Fixes to __repr__() implementation of many built-in ASN.1 types to take into account all of their initializers such as tagSet, subtypeSpec etc. diff --git a/pyasn1/debug.py b/pyasn1/debug.py index 04edbb6..cb21fb6 100644 --- a/pyasn1/debug.py +++ b/pyasn1/debug.py @@ -18,10 +18,9 @@ class Debug: defaultPrinter = sys.stderr.write def __init__(self, *flags): self._flags = flagNone - if self.defaultPrinter: - self._printer = self.defaultPrinter - else: - self._printer = lambda x: None # stderr may not be available + if not self.defaultPrinter: + raise error.PyAsn1Error('Null debug writer specified') + self._printer = self.defaultPrinter self('running pyasn1 version %s' % __version__) for f in flags: if f not in flagMap: |