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When I run the same code with different piping, why output is different?
% python2.7 -c 'import sys; print sys.stdout.encoding'
UTF-8
% python2.7 -c 'import sys; print sys.stdout.encoding' | cat
None
Because when you use
cat(or any pipe), you unbind the process from terminal. Python derives information about encoding from terminal settings.You can force the encoding using enironment variable: