pyavm traceback

gistfile1.txt

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-24-80ea1cd1ef6b> in <module>()
      5                make_nans_transparent=True, embed_avm_tags=True,
      6                vmin_r=vmin, vmin_g=vmin, vmin_b=vmin, vmax_r=vmax, vmax_g=vmax, vmax_b=vmax,
----> 7                stretch_r='sqrt', stretch_g='sqrt', stretch_b='sqrt')
      8 
      9 rgb_name = IMAGE.replace('IMAGE', 'IMAGE_RGB').replace('.fits', '.jpg')

~/miniconda3/lib/python3.6/site-packages/aplpy/rgb.py in make_rgb_image(data, output, indices, vmin_r, vmax_r, pmin_r, pmax_r, stretch_r, vmid_r, exponent_r, vmin_g, vmax_g, pmin_g, pmax_g, stretch_g, vmid_g, exponent_g, vmin_b, vmax_b, pmin_b, pmax_b, stretch_b, vmid_b, exponent_b, make_nans_transparent, embed_avm_tags)
    227         if output.lower().endswith(('.jpg', '.jpeg', '.png')):
    228             avm = AVM.from_header(header)
--> 229             avm.embed(output, output)
    230         else:
    231             warnings.warn("AVM tags will not be embedded in RGB image, as only JPEG and PNG files are supported")

~/miniconda3/lib/python3.6/site-packages/pyavm/avm.py in embed(self, filename_in, filename_out, verify)
    724 
    725         # Embed XMP packet into file
--> 726         embed_xmp(filename_in, filename_out, self.to_xmp())
    727 
    728         # Verify file if needed

~/miniconda3/lib/python3.6/site-packages/pyavm/avm.py in to_xmp(self)
    713         """
    714         packet = b'<?xpacket begin="\xef\xbb\xbf" id="W5M0MpCehiHzreSzNTczkc9d"?>\n'
--> 715         packet += self.to_xml()
    716         packet += b'<?xpacket end="w"?>'
    717 

~/miniconda3/lib/python3.6/site-packages/pyavm/avm.py in to_xml(self)
    700         # Need to create a StringIO object to write to
    701         s = StringIO()
--> 702         tree.write(s, encoding='utf-8')
    703 
    704         # Rewind and read the contents

~/miniconda3/lib/python3.6/xml/etree/ElementTree.py in write(self, file_or_filename, encoding, xml_declaration, default_namespace, method, short_empty_elements)
    774                 serialize = _serialize[method]
    775                 serialize(write, self._root, qnames, namespaces,
--> 776                           short_empty_elements=short_empty_elements)
    777 
    778     def write_c14n(self, file):

~/miniconda3/lib/python3.6/contextlib.py in __exit__(self, type, value, traceback)
     87         if type is None:
     88             try:
---> 89                 next(self.gen)
     90             except StopIteration:
     91                 return

~/miniconda3/lib/python3.6/xml/etree/ElementTree.py in _get_writer(file_or_filename, encoding)
    833                 # destroyed
    834                 stack.callback(file.detach)
--> 835                 yield file.write
    836 
    837 def _namespaces(elem, default_namespace=None):

~/miniconda3/lib/python3.6/contextlib.py in __exit__(self, *exc_details)
    378                 # set-up context
    379                 fixed_ctx = exc_details[1].__context__
--> 380                 raise exc_details[1]
    381             except BaseException:
    382                 exc_details[1].__context__ = fixed_ctx

~/miniconda3/lib/python3.6/contextlib.py in __exit__(self, *exc_details)
    363             cb = self._exit_callbacks.pop()
    364             try:
--> 365                 if cb(*exc_details):
    366                     suppressed_exc = True
    367                     pending_raise = False

~/miniconda3/lib/python3.6/contextlib.py in _exit_wrapper(exc_type, exc, tb)
    312         """
    313         def _exit_wrapper(exc_type, exc, tb):
--> 314             callback(*args, **kwds)
    315         # We changed the signature, so using @wraps is not appropriate, but
    316         # setting __wrapped__ may still help with introspection

TypeError: string argument expected, got 'bytes'