eclipse - TypeError: file() argument 1 must be encoded string without NULL bytes, not str odoo -

the python version 2.8.2 , using in eclipse. getting error when trying execute following command:

the function is:

@api.one @api.depends('image') def _compute_image_details(self):     if self.image:         image_content = self.image.decode('base64')         print type(self.image)         print type(image_content)          # file size         self.size = len(image_content)          # camera make , model exif tags         img = pil.image.open(image_content)         exif_tags = img._getexif()          # 0x010f numeric code "make" exif field         # can find list of fields here: exiv2.org/tags.html         self.camera_maker = exif_tags.get(0x010f) 

the error raised is:

traceback (most recent call last):   file "/home/next/workspace/odoo-8.0/openerp/http.py", line 537, in _handle_exception     return super(jsonrequest, self)._handle_exception(exception)   file "/home/next/workspace/odoo-8.0/openerp/http.py", line 574, in dispatch     result = self._call_function(**self.params)   file "/home/next/workspace/odoo-8.0/openerp/http.py", line 310, in _call_function     return checked_call(self.db, *args, **kwargs)   file "/home/next/workspace/odoo-8.0/openerp/service/model.py", line 113, in wrapper     return f(dbname, *args, **kwargs)   file "/home/next/workspace/odoo-8.0/openerp/http.py", line 307, in checked_call     return self.endpoint(*a, **kw)   file "/home/next/workspace/odoo-8.0/openerp/http.py", line 803, in __call__     return self.method(*args, **kw)   file "/home/next/workspace/odoo-8.0/openerp/http.py", line 403, in response_wrap     response = f(*args, **kw)   file "/home/next/workspace/odoo-8.0/addons/web/controllers/main.py", line 944, in call_kw     return self._call_kw(model, method, args, kwargs)   file "/home/next/workspace/odoo-8.0/addons/web/controllers/main.py", line 936, in _call_kw     return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)   file "/home/next/workspace/odoo-8.0/openerp/api.py", line 241, in wrapper     return old_api(self, *args, **kwargs)   file "/home/next/workspace/odoo-8.0/openerp/api.py", line 363, in old_api     result = method(recs, *args, **kwargs)   file "/home/next/workspace/odoo-8.0/openerp/models.py", line 5873, in onchange     newval = record[name]   file "/home/next/workspace/odoo-8.0/openerp/models.py", line 5571, in __getitem__     return self._fields[key].__get__(self, type(self))   file "/home/next/workspace/odoo-8.0/openerp/fields.py", line 820, in __get__     self.determine_draft_value(record)   file "/home/next/workspace/odoo-8.0/openerp/fields.py", line 928, in determine_draft_value     self._compute_value(record)   file "/home/next/workspace/odoo-8.0/openerp/fields.py", line 867, in _compute_value     self.compute(records)   file "/home/next/workspace/odoo-8.0/openerp/api.py", line 239, in wrapper     return new_api(self, *args, **kwargs)   file "/home/next/workspace/odoo-8.0/openerp/api.py", line 397, in new_api     result = [method(rec, *args, **kwargs) rec in self]   file "/home/next/workspace/odoo-8.0/addons/transform_webservice_example/image_example.py", line 33, in _compute_image_details     img = pil.image.open(image_content)   file "/usr/lib/python2.7/dist-packages/pil/image.py", line 1955, in open     fp = __builtin__.open(fp, "rb") typeerror: file() argument 1 must encoded string without null bytes, not str 

please me issue.

the other references url of file. different scenario.

you're trying open base64 decoded contents of file, you're supposed open file itself.

pil.image.open(self.image) 

take example, reproduce error you're getting

>>> open('\0') traceback (most recent call last):   file "<stdin>", line 1, in <module> typeerror: file() argument 1 must encoded string without null bytes, not str >>> 

the character '\0' seen nullbyte decoded image contains