Fix bug

...w_examples/injection_examples/how_to_specify_the_prior.py

...gw_examples/injection_examples/marginalized_likelihood.py

examples/gw_examples/injection_examples/non_tensor.py

examples/gw_examples/injection_examples/plot_skymap.py

...s/gw_examples/injection_examples/plot_time_domain_data.py

examples/gw_examples/injection_examples/roq_example.py

...s/gw_examples/injection_examples/sine_gaussian_example.py

..._examples/injection_examples/standard_15d_cbc_tutorial.py

examples/gw_examples/injection_examples/using_gwin.py

.../gw_examples/supernova_example/MuellerL15_example_inj.txt

examples/gw_examples/supernova_example/SupernovaImagPCs.txt

examples/gw_examples/supernova_example/SupernovaRealPCs.txt

examples/gw_examples/supernova_example/supernova_example.py

test/example_test.py

test/gw_example_test.py

test/gw_prior_test.py