I would check that the file is not empty first:
import os scores = {} # scores is an empty dict already if os.path.getsize(target) > 0: with open(target, "rb") as f: unpickler = pickle.Unpickler(f) # if file is not empty scores will be equal # to the value unpickled scores = unpickler.load()
Also open(target, 'a').close()
is doing nothing in your code and you don’t need to use ;
.
Related Posts:
- How do I copy a file in Python?
- How do I copy a file in Python?
- How to open a file using the open with statement
- Using “with open() as file” method, how to write more than once? [duplicate]
- How to read a file line-by-line into a list?
- TypeError: a bytes-like object is required, not ‘str’ when writing to a file in Python3
- Confused by python file mode “w+”
- File open and close in python
- Do I understand os.walk right?
- FileNotFoundError: [Errno 2] No such file or directory [duplicate]
- How to move a file in Python?
- Saving and loading objects and using pickle
- Python open() gives FileNotFoundError/IOError: Errno 2 No such file or directory
- FileNotFoundError: [Errno 2] No such file or directory
- How to move a file in Python?
- How do you append to a file?
- Writing a list to a file with Python
- How do I copy a file in Python?
- EOFError: Ran out of input
- How do I check whether a file exists without exceptions?
- Call a function from another file?
- How to unpack pkl file?
- Writing a list to a file with Python
- How can I check file size in Python?
- Python list directory, subdirectory, and files
- Where does this come from: -*- coding: utf-8 -*-
- Open file in a relative location in Python
- Why am I getting a FileNotFoundError?
- Pickle , read in data , unsupported pickle protocol: 3 python 2.7
- Python: Write array values into file
- Importing variables from another file?
- ValueError: unsupported pickle protocol: 3, python2 pickle can not load the file dumped by python 3 pickle?
- ValueError: unsupported pickle protocol: 3, python2 pickle can not load the file dumped by python 3 pickle?
- How to copy files?
- Flask raises TemplateNotFound error even though template file exists
- importing external “.txt” file in python
- Search and replace a line in a file in Python
- How to save a dictionary to a file?
- How to open a file for both reading and writing?
- How do you read a file into a list in Python?
- SSL error : routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
- What is the perfect counterpart in Python for “while not EOF”
- Can’t find module cPickle using Python 3.5 and Anaconda
- .write not working in Python
- How to read pickle file?
- Creating files and directories via Python
- Python, how to handle the “ValueError: unsupported pickle protocol: 4” error?
- How to convert a file into a dictionary?
- How to delete a specific line in a file?
- Python read in string from file and split it into values
- Not able to pip install pickle in python 3.6
- How often does python flush to a file?
- How to open every file in a folder
- TypeError: expected str, bytes or os.PathLike object, not _io.TextIOWrapper
- Loading and parsing a JSON file with multiple JSON objects
- How to find out whether a file is at its `eof`?
- Python IOError: File not open for reading
- ValueError: insecure string pickle
- TypeError: only size-1 arrays can be converted to Python scalars (matplotlib)
- Why do I get TypeError: can’t multiply sequence by non-int of type ‘float’?
- Writing a pandas DataFrame to CSV file
- What does pythonic mean?
- Python strip with \n [duplicate]
- ImportError: Missing required dependencies [‘numpy’]
- Why is it string.join(list) instead of list.join(string)?
- How to prevent errno 32 broken pipe?
- How to iterate over rows in a DataFrame in Pandas
- How do I concatenate two lists in Python?
- ValueError: could not broadcast input array from shape (224,224,3) into shape (224,224)
- Overflow Error in Python’s numpy.exp function
- Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock
- Catch multiple exceptions in one line (except block)
- Check if two unordered lists are equal
- Multiple assignment and evaluation order in Python
- deleting rows in numpy array
- How to make a 3D scatter plot in matplotlib
- Arrays used as indices must be of integer (or boolean) type
- How can I compare two lists in python and return matches
- How to draw vertical lines on a given plot in matplotlib
- Clear terminal in Python [duplicate]
- ModuleNotFoundError: No module named ‘discord’
- No numeric types to aggregate – change in groupby() behaviour?
- Euclidean Algorithm / GCD in Python
- Pandas split DataFrame by column value
- What is a “slug” in Django?
- Intel MKL FATAL ERROR: Cannot load mkl_intel_thread.dll
- if else function in pandas dataframe
- Primality test in python [duplicate]
- Flask-SQLalchemy update a row’s information
- Inline for loop
- Read data (.dat file) with Pandas
- ‘instancemethod’ object has no attribute ‘__getitem__’ with class variables
- Python/Scikit-Learn – Can’t handle mix of multiclass and continuous
- Sorting list of lists by the first element of each sub-list
- Install py2exe for python 2.7 over pip: this package requires Python 3.3 or later
- What is the correct format to write float value to file in Python
- TypeError: ‘zip’ object is not subscriptable
- Pip: could not find a version. No matching distribution found
- Compare two columns using pandas
- ValueError: total size of new array must be unchanged