diff options
-rw-r--r-- | CHANGES.txt | 2 | ||||
-rw-r--r-- | pysnmp/debug.py | 7 |
2 files changed, 4 insertions, 5 deletions
diff --git a/CHANGES.txt b/CHANGES.txt index 36e9b6d7..dc6e5207 100644 --- a/CHANGES.txt +++ b/CHANGES.txt @@ -39,7 +39,7 @@ Revision 4.2.6rc0 reworked towards more robust and simple design with the execution observer facility. - MIB instrumentation example improved to cover table index building facility. -- Handle the case of absent stderr stream at Debug printer. +- Handle the case of null writer at Debug printer. - Fix to decodeMessageVersion() to withstand broken SNMP messages. - Fix to rfc1902.Bits type to make it accepting hex and binary initializers, cope with missing bits identifieirs at prettyPrint(). diff --git a/pysnmp/debug.py b/pysnmp/debug.py index d3f1f367..01bf8e02 100644 --- a/pysnmp/debug.py +++ b/pysnmp/debug.py @@ -35,10 +35,9 @@ 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.PySnmpError('Null debug writer specified') + self._printer = self.defaultPrinter self('running pysnmp version %s' % __version__) for f in flags: inverse = f and f[0] in ('!', '~') |