“are much more likely than a never-observed bug in Python itself in a functionality that’s used billions of times a day all over the world”: it always amazes me how cross people get in these forums. One easy way to get this problem is by forgetting to close the stream that you’re using for dumping … Read more
pickle module is part of the standard library in Python for a very long time now so there is no need to install it via pip. I wonder if you IDE or command line is not messed up somehow so that it does not find python installation path. Please check if your %PATH% contains a path to python (e.g. C:\Python36\ or something … Read more
I’m new to Python. I’ve to run this TargetFinder script (“Custom Analyses”). I installed all the required python packages, and copied the code into a script I named main.py, and ran it. I got this error: I’ve no idea about what this pickle protocol means, and also my colleagues know nothing about it. How can … Read more
Pickle serializes a single object at a time, and reads back a single object – the pickled data is recorded in sequence on the file. If you simply do pickle.load you should be reading the first object serialized into the file (not the last one as you’ve written). After unserializing the first object, the file-pointer … Read more
There is no cPickle in Python 3. Just import pickle. pickle will automatically use the C accelerator.
cPickle comes with the standard library… in python 2.x. You are on python 3.x, so if you want cPickle, you can do this: However, in 3.x, it’s easier just to use pickle. No need to install anything. If something requires cPickle in python 3.x, then that’s probably a bug.
You should write the pickled data with a lower protocol number in Python 3. Python 3 introduced a new protocol with the number 3 (and uses it as default), so switch back to a value of 2 which can be read by Python 2. Check the protocolparameter in pickle.dump. Your resulting code will look like this. There is no protocolparameter in pickle.load because pickle can determine … Read more
You should write the pickled data with a lower protocol number in Python 3. Python 3 introduced a new protocol with the number 3 (and uses it as default), so switch back to a value of 2 which can be read by Python 2. Check the protocolparameter in pickle.dump. Your resulting code will look like this. There is no protocolparameter in pickle.load because pickle can determine … Read more
Beginner here, want to read in data with the file ending p. My code looks like this : I get the following error: ValueError: unsupported pickle protocol: 3 Can someone point out how i can fix it, either changing protocol or reading in the data some other way ?
Generally Your pkl file is, in fact, a serialized pickle file, which means it has been dumped using Python’s pickle module. To un-pickle the data you can: For the MNIST data set Note gzip is only needed if the file is compressed: Where each set can be further divided (i.e. for the training set): Those would be the inputs (digits) and outputs (labels) … Read more