Merge pull request #59 from philipstarkey/fix-h5py-file-mode

Addresses #47 for this module

Author: chrisjbillington

labscript_utils/camera_server.py

@@ -158,7 +158,7 @@ def transition_to_static(self, h5_filepath):
         them to the h5 file"""
         import pyfits
         start_time = time.time()
-        with h5py.File(h5_filepath) as f:
+        with h5py.File(h5_filepath, 'r+') as f:
             group = f['devices']['camera']
             if not 'EXPOSURES' in group:
                 print('no images taken this shot')