On Wed, Jul 27, 2016 at 10:39 PM, Larry Martell <larry.mart...@gmail.com> wrote: > On Wed, Jul 27, 2016 at 7:45 PM, Jason Benjamin <hexusne...@gmail.com> wrote: >> Look at this: https://wiki.python.org/moin/UsingPickle >> It uses *pickle.dump* not *pickle.dumps* > > Yes that uses a file. I do not want to use a file. I want to pass the > object as a string. > >> If you still don't get it send me the code for the function with a working >> code example the calls that function revealing the error. >> >> I've had a lot of experience with Python and it looks like its the sequence >> of functions that causes the problem and not just one Python function call >> on its own. > > I have an object of type Target: > > (Pdb) type(target) > <class 'workitem.Target'> > > And I pickle it like this: > > (Pdb) type(pickle.dumps(target)) > <type 'str'> > > And then it looks like this: > > (Pdb) pickle.dumps(target) > "ccopy_reg\n_reconstructor\np0\n(cworkitem\nTarget\np1\nc__builtin__\nobject\np2\nNtp3\nRp4\n(dp5\nS'histologySections'\np6\n(lp7\nsS'registrationTransforms'\np8\nV\np9\nsS'valueMaps'\np10\n(dp11\nsS'targetID'\np12\nVRight-CarotidArtery\np13\nsS'targetInitializer'\np14\ng9\nsS'regions'\np15\n(dp16\nsS'bodySite'\np17\nVRightCarotid\np18\nsS'targetLocalFolderName'\np19\nV21597135/wi-54976537/Right-CarotidArtery\np20\nsS'readingsLocalFileName'\np21\ng9\nsS'probabilityMaps'\np22\n(dp23\nsS'targetPath'\np24\ng9\nsb." > > And I pass it into a subprocess.Popen call. Then in the program that > is called, it comes in as a string: > > (Pdb) type(args.target) > <type 'str'> > > With the same content: > > (Pdb) args.target > "ccopy_reg\n_reconstructor\np0\n(cworkitem\nTarget\np1\nc__builtin__\nobject\np2\nNtp3\nRp4\n(dp5\nS'histologySections'\np6\n(lp7\nsS'registrationTransforms'\np8\nV\np9\nsS'valueMaps'\np10\n(dp11\nsS'targetID'\np12\nVRight-CarotidArtery\np13\nsS'targetInitializer'\np14\ng9\nsS'regions'\np15\n(dp16\nsS'bodySite'\np17\nVRightCarotid\np18\nsS'targetLocalFolderName'\np19\nV21597135/wi-54976537/Right-CarotidArtery\np20\nsS'readingsLocalFileName'\np21\ng9\nsS'probabilityMaps'\np22\n(dp23\nsS'targetPath'\np24\ng9\nsb." > > And when I unpickle it I get the error: > > (Pdb) pickle.loads(args.target) > ***ImportError: Import by filename is not supported. > > > Also, please keep the discussion on the list, and please don't top post.
Also let me add that initially I was calling Popen with shell=False and the arguments in a list, and that was failing with: arg 2 must contain only strings And when I debugged I found that this was happening in the execvp call in subprocess and arg 2 was a str. So then I changed it using shell=False with the command line in a string, and that is when I get the ImportError error. >> On Wed, Jul 27, 2016 at 4:29 PM, Larry Martell <larry.mart...@gmail.com> >> wrote: >> >> On Wed, Jul 27, 2016 at 6:54 PM, Jason Benjamin <hexusne...@gmail.com> >> wrote: >> >> If it has and 's' on the end it will only work on strings. *dumps* refers to >> a string too. >> >> Yes, I know. I have an object, which I pickle with dumps, which turns it >> into a string. Then I try to unpickle it with loads and I get that error. >> (Pdb) type(args.target) <type 'str'> (Pdb) pickle.loads(args.target) *** >> ImportError: Import by filename is not supported. >> >> On Wed, Jul 27, 2016 at 3:44 PM, Larry Martell <larry.mart...@gmail.com> >> wrote: On Wednesday, July 27, 2016, Jason Benjamin <hexusne...@gmail.com> >> wrote: >> >> On Wed, 27 Jul 2016 17:25:43 -0400, Larry Martell wrote: > When I try and >> unpickle an object with pickle.loads it fails with: > > ImportError: Import >> by filename is not supported when unpickleing > > I've never used pickle >> before. Why do I get this and how can I fix it? Try using *pickle.load* >> instead of *pickle.loads*. pickle.loads is for strings. Retrieved from >> documentation: help(pickle) after importing pickle. >> >> I am unpickling a string created with pickle.dumps -- https://mail.python.org/mailman/listinfo/python-list
