Minimal example:
import piexif
exif = piexif.load("picture.jpg")
cc = exif['Exif'].get(37121) # ComponentsConfiguration
print(type(cc), cc) # <class 'tuple'> (1, 2, 3, 0)
exif_bytes = piexif.dump(exif)
Raises:
ValueError: "dump" got wrong type of exif value.
37121 in Exif IFD. Got as <class 'tuple'>.
Link to ComponentsConfiguration definition
Workaround:
import piexif
exif = piexif.load("picture.jpg")
cc = exif['Exif'].get(37121)
if isinstance(cc, tuple):
exif['Exif'][37121] = ",".join([str(v) for v in cc]).encode("ASCII")
exif_bytes = piexif.dump(exif)
Picture (taken with Samsung Galaxy S III mini):

Minimal example:
Raises:
Link to ComponentsConfiguration definition
Workaround:
Picture (taken with Samsung Galaxy S III mini):
