Ran out of input python ошибка

Short answer: The simplest solution is to write the complete list to file using pickle.dump(). There’s no need to write all objects one by one in a loop. Pickle is designed to do this for you.

Example code and alternative solutions:

Below is a fully working example. Some notes:

• I’ve updated your __init__ function a bit to make the initialization code a lot easier and shorter.
• I’ve also added a __repr__ function. This could be used to print the record details to screen, which you also asked. (Note that you could also implement a __str__ function, but I chose to implement __repr__ for this example).
• This code example uses standard Python coding styles (PEP-8).
• This code uses a context manager to open the file. This is safer and avoid the need to manually close the file.

If you really want to write the objects manually, for whatever reason, there are a few alternatives to do that safely. I’ll explain them after this code example:

import pickle


class CarRecord:

    def __init__(self, vehicle_id, registration, registration_date, engine_size, purchase_price):
        self.vehicle_id = vehicle_id
        self.registration = registration
        self.registration_date = registration_date
        self.engine_size = engine_size
        self.purchase_price = purchase_price

    def __repr__(self):
        return "CarRecord(%r, %r, %r, %r, %r)" % (self.vehicle_id, self.registration,
                                                  self.registration_date, self.engine_size,
                                                  self.purchase_price)


def main():
    cars = [
        CarRecord("CD333", "17888", "18/2/2017", 2500, 22000.00),
        CarRecord("AB123", "16988", "19/2/2017", 2500, 20000.00),
    ]

    # Write cars to file.
    with open('Cars.TXT', 'wb') as car_file:
        pickle.dump(cars, car_file)

    # Read cars from file.
    with open('Cars.TXT', 'rb') as car_file:
        cars = pickle.load(car_file)

    # Print cars.
    for car in cars:
        print(car)


if __name__ == '__main__':
    main()

Output:

CarRecord('CD333', '17888', '18/2/2017', 2500, 22000.0)
CarRecord('AB123', '16988', '19/2/2017', 2500, 20000.0)

Instead of dumping the list at once, you could also do it in a loop. The following code snippets are alternative implementations to «Write cars to file» and «Read cars from file».

Alternative 1: write number of objects to file

At the start of the file, write the number of cars. This can be used to read the same amount of cars from the file.

    # Write cars to file.
    with open('Cars.TXT', 'wb') as car_file:
        pickle.dump(len(cars), car_file)
        for car in cars:
            pickle.dump(car, car_file)

    # Read cars from file.
    with open('Cars.TXT', 'rb') as car_file:
        num_cars = pickle.load(car_file)
        cars = [pickle.load(car_file) for _ in range(num_cars)]

Alternative 2: use an «end» marker

At the end of the file, write some recognizable value, for example None. When reading this object can be used to detect the end of file.

    # Write cars to file.
    with open('Cars.TXT', 'wb') as car_file:
        for car in cars:
            pickle.dump(car, car_file)
        pickle.dump(None, car_file)

    # Read cars from file.
    with open('Cars.TXT', 'rb') as car_file:
        cars = []
        while True:
            car = pickle.load(car_file)
            if car is None:
                break
            cars.append(car)

У меня в коде изначально всё работает. При повторном запуске, когда уже создан файл, в котором хранятся данные, вылезает ошибка Run out of input.

user_list = []
password_list = []
lesson_assessments = dict()
try:
	opn_f = open('datafile.data', 'rb')
except IOError:
	None
else:
	user_list = pickle.load(opn_f)
	password_list = pickle.load(opn_f)
	lesson_assessments =pickle.load(opn_f)

ошибка в строке с password_list = pickle.load(opn_f)

Issue Type: Bug

Error 2020-07-22 20:17:13: stderr jediProxy Error (stderr) Traceback (most recent call last):
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjediinferencecompiledsubprocess__init__.py", line 261, in _send
    is_exception, traceback, result = pickle_load(self._get_process().stdout)
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjedi_compatibility.py", line 396, in pickle_load
    return pickle.load(file, encoding='bytes')
EOFError: Ran out of input

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjediapienvironment.py", line 75, in _get_subprocess
    info = self._subprocess._send(None, _get_info)
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjediinferencecompiledsubprocess__init__.py", line 273, in _send
    stderr,
jedi.api.exceptions.InternalError: The subprocess D:Program-FilesAnaconda3envspy36-ideapython.exe has crashed (EOFError('Ran out of input',), stderr=).

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFilescompletion.py", line 661, in watch
    response = self._process_request(rq)
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFilescompletion.py", line 589, in _process_request
    all_scopes=True,
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjediapi__init__.py", line 885, in names
    return Script(source, path=path, encoding=encoding).get_names(
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjediapi__init__.py", line 185, in __init__
    project, environment=environment, script_path=self.path
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjediinference__init__.py", line 90, in __init__
    self.compiled_subprocess = environment.get_inference_state_subprocess(self)
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjediapienvironment.py", line 114, in get_inference_state_subprocess
    return InferenceStateSubprocess(inference_state, self._get_subprocess())
  File "c:Usersaaa.vscodeextensionsms-python.python-2020.7.94776pythonFileslibpythonjediapienvironment.py", line 80, in _get_subprocess
    exc))
jedi.api.environment.InvalidPythonEnvironment: Could not get version information for 'D:\Program-Files\Anaconda3\envs\py36-idea\python.exe': InternalError("The subprocess D:\Program-Files\Anaconda3\envs\py36-idea\python.exe has crashed (EOFError('Ran out of input',), stderr=).",)

Extension version: 2020.7.94776
VS Code version: Code 1.47.2 (17299e413d5590b14ab0340ea477cdd86ff13daf, 2020-07-15T18:22:06.216Z)
OS version: Windows_NT x64 10.0.18363

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