commit 438021c278906a08c2a74e154673a5e26cbfbedc Author: Isis Lovecruft <isis@torproject.org> Date: Sun Feb 1 00:13:25 2015 +0000 Change qrcode module import to be attempted only once. --- lib/bridgedb/qrcodes.py | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/lib/bridgedb/qrcodes.py b/lib/bridgedb/qrcodes.py index ae25f06..a76cf8f 100644 --- a/lib/bridgedb/qrcodes.py +++ b/lib/bridgedb/qrcodes.py @@ -16,6 +16,14 @@ import cStringIO import logging +try: + import qrcode +except ImportError: + qrcode = False + logging.warn("Could not import Python qrcode module.") + logging.debug(("You'll need the qrcode Python module for this to " + "work. On Debian-based systems, this should be in the " + "python-qrcode package.")) def generateQR(bridgelines, imageFormat=u'JPEG'): """Generate a QRCode for the client's bridge lines. @@ -31,8 +39,10 @@ def generateQR(bridgelines, imageFormat=u'JPEG'): if not bridgelines: return + if not qrcode: + logging.info("Not creating QRCode for bridgelines; no qrcode module.") + try: - import qrcode qr = qrcode.QRCode() qr.add_data(bridgelines) @@ -45,11 +55,6 @@ def generateQR(bridgelines, imageFormat=u'JPEG'): return imgstr - except ImportError as error: - logging.error(str(error)) - logging.debug(("You'll need the qrcode Python module for this to " - "work. On Debian-based systems, this should be in the " - "python-qrcode package.")) except KeyError as error: logging.error(str(error)) logging.debug(("It seems python-imaging doesn't understand how to "