Sep 21, 2011 · The pickle module implements a fundamental, but powerful algorithm for serializing and de-serializing a Python object structure. Pickling - is the process whereby a Python object hierarchy …

The following is an example of how you might write and read a pickle file. Note that if you keep appending pickle data to the file, you will need to continue reading from the file until you find what …

However, there's a package called klepto that abstracts the saving of objects to a dictionary interface, so you can choose to pickle objects and save them to a file (as shown below), or pickle the objects and …

Jul 23, 2014 · 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:

I have looked through the information that the Python documentation for pickle gives, but I'm still a little confused. What would be some sample code that would write a new file and then use pickle...

Dec 25, 2010 · pickle can read and write files in several different, Python-specific, formats, called protocols as described in the documentation, "Protocol version 0" is ASCII and therefore "human …

I need to append to a pickle file (as I don't have the entire dictionary with me at one go). So for doing the same I have written the following code: import pickle p = {} p[1] = 2 q = {} q['a...

However, if you're surprised that the pickle file is empty, it could be because you opened the filename through 'wb' or some other mode that could have over-written the file.

Jun 11, 2014 · Python pickle/unpickle a list to/from a file Asked 12 years, 5 months ago Modified 11 years, 7 months ago Viewed 53k times

Some other references: In the question Fastest Python library to read a CSV file there is a very detailed answer which compares different libraries to read csv files with a benchmark. The result is that for …