better way to check if a dir exists
better way to check if a dir exists

cirosantilli/pyelftools,dethrophes/pyelftools,sigma-random/pyelftools,dethrophes/pyelftools,HackerTool/pyelftools,pombredanne/pyelftools,oxff/pyelftools,DavidSpickett/pyelftools,sigma-random/pyelftools,oxff/pyelftools,sigma-random/pyelftools,DavidSpickett/pyelftools,pombredanne/pyelftools,cirosantilli/pyelftools,HackerTool/pyelftools,goodhacker/pyelftools,cirosantilli/pyelftools,goodhacker/pyelftools