import glob
import fabio, os

cbf_dir = "/folder/with/CBFFiles"
edf_dir = "/folder/to/save/EDFFiles"
dest_format = "edf"

# Starting value of omega
omegastart = -23.5
# Omega step
omegastep = 0.5
# The first file will be assigne a value of omega = omegastart+omegastep/2.


files = glob.glob("%s/*.cbf" % cbf_dir)
files.sort()
print("Number of files: %s" % len(files))

if not os.path.exists(edf_dir):
    os.makedirs(edf_dir)

omega = omegastart + omegastep / 2.
for onefile in files:
    dst_name = os.path.join(edf_dir, os.path.splitext(os.path.basename(onefile))[0] + "." + dest_format)
    print("Converting %s into %s" % (onefile, dst_name))
    im = fabio.open(onefile)
    im.header["Omega"] = omega
    im.convert(dest_format).save(dst_name)
    omega += omegastep

print ("Read %d file in %s" % (len(files), cbf_dir))
print ("Saved %d file in %s"% (len(files), edf_dir))
print ("Done")