Automated Code Analysis

pyflakes analysis of ardour_2.8.11-5_i386.deb

./usr/bin/ardour2-session_exchange.py:25: 'string' imported but unused
./usr/bin/ardour2-session_exchange.py:50: local variable 'seen' is assigned to but never used
./usr/bin/ardour2-session_exchange.py:240: undefined name 'defer'
./usr/bin/ardour2-session_exchange.py:464: local variable 'self' is assigned to but never used

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