diff options
Diffstat (limited to 'pyasn1/debug.py')
| -rw-r--r-- | pyasn1/debug.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/pyasn1/debug.py b/pyasn1/debug.py index c27cb1d..04edbb6 100644 --- a/pyasn1/debug.py +++ b/pyasn1/debug.py @@ -18,7 +18,10 @@ class Debug: defaultPrinter = sys.stderr.write def __init__(self, *flags): self._flags = flagNone - self._printer = self.defaultPrinter + if self.defaultPrinter: + self._printer = self.defaultPrinter + else: + self._printer = lambda x: None # stderr may not be available self('running pyasn1 version %s' % __version__) for f in flags: if f not in flagMap: |