in build_script.py [0:0]
def symlink_force(target, link_name):
if os.path.isdir(link_name):
link_name = os.path.join(link_name, os.path.basename(target))
try:
os.symlink(target, link_name)
except OSError as e:
if e.errno == errno.EEXIST:
os.remove(link_name)
os.symlink(target, link_name)
else:
raise e