Traceback (most recent call last):


 "~/anaconda3/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 3267, in run_code

exec(code_obj, self.user_global_ns, self.user_ns)


 "<ipython-input-6-2d90b8f3ca9c>", line 1, in <module>

dcm2 = pydicom.dcmread('~/Documents/problem_ISO_IR_100.dcm')


 "~/anaconda3/lib/python3.7/site-packages/pydicom/filereader.py", line 879, in dcmread

force=force, specific_tags=specific_tags)


 "~/anaconda3/lib/python3.7/site-packages/pydicom/filereader.py", line 753, in read_partial

specific_tags=specific_tags)


 "~/anaconda3/lib/python3.7/site-packages/pydicom/filereader.py", line 378, in read_dataset

raw_data_element = next(de_gen)


 "~/anaconda3/lib/python3.7/site-packages/pydicom/filereader.py", line 242, in data_element_generator

is_little_endian, length, encoding)


 "~/anaconda3/lib/python3.7/site-packages/pydicom/filereader.py", line 422, in read_sequence

encoding, offset)


 "~/anaconda3/lib/python3.7/site-packages/pydicom/filereader.py", line 466, in read_sequence_item

at_top_level=False)


 "~/anaconda3/lib/python3.7/site-packages/pydicom/filereader.py", line 378, in read_dataset

raw_data_element = next(de_gen)


 "~/anaconda3/lib/python3.7/site-packages/pydicom/filereader.py", line 208, in data_element_generator

encoding = convert_string(value, is_little_endian)


 "~/anaconda3/lib/python3.7/site-packages/pydicom/values.py", line 370, in convert_string

byte_string = byte_string.decode(default_encoding)
AttributeError: 'NoneType' object has no attribute 'decode'

Traceback (most recent call last):


 "spotdl.py", line 396, in <module>

grab_list(text_file=args.list)


 "spotdl.py", line 293, in grab_list

except (urllib.URLError, TypeError, IOError):
AttributeError: 'module' object has no attribute 'request'
