Eoferror ran out of input ошибка

I am getting an interesting error while trying to use Unpickler.load(), here is the source code:

open(target, 'a').close()
scores = {};
with open(target, "rb") as file:
    unpickler = pickle.Unpickler(file);
    scores = unpickler.load();
    if not isinstance(scores, dict):
        scores = {};

Here is the traceback:

Traceback (most recent call last):
File "G:pythonpenduuser_test.py", line 3, in <module>:
    save_user_points("Magix", 30);
File "G:pythonpenduuser.py", line 22, in save_user_points:
    scores = unpickler.load();
EOFError: Ran out of input

The file I am trying to read is empty.
How can I avoid getting this error, and get an empty variable instead?

asked Jul 16, 2014 at 22:35

MagixMagix

4,7517 gold badges25 silver badges47 bronze badges

Most of the answers here have dealt with how to mange EOFError exceptions, which is really handy if you’re unsure about whether the pickled object is empty or not.

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.

for example:

filename = 'cd.pkl'
with open(filename, 'wb') as f:
    classification_dict = pickle.load(f)

This will over-write the pickled file. You might have done this by mistake before using:

...
open(filename, 'rb') as f:

And then got the EOFError because the previous block of code over-wrote the cd.pkl file.

When working in Jupyter, or in the console (Spyder) I usually write a wrapper over the reading/writing code, and call the wrapper subsequently. This avoids common read-write mistakes, and saves a bit of time if you’re going to be reading the same file multiple times through your travails

answered Apr 10, 2018 at 9:01

Abhay NainanAbhay Nainan

3,4841 gold badge12 silver badges14 bronze badges

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 ;.

0 _

9,90111 gold badges75 silver badges108 bronze badges

answered Jul 16, 2014 at 22:45

It is very likely that the pickled file is empty.

It is surprisingly easy to overwrite a pickle file if you’re copying and pasting code.

For example the following writes a pickle file:

pickle.dump(df,open('df.p','wb'))

And if you copied this code to reopen it, but forgot to change 'wb' to 'rb' then you would overwrite the file:

df=pickle.load(open('df.p','wb'))

The correct syntax is

df=pickle.load(open('df.p','rb'))

answered Oct 3, 2019 at 15:47

user2723494user2723494

1,1201 gold badge15 silver badges24 bronze badges

As you see, that’s actually a natural error ..

A typical construct for reading from an Unpickler object would be like this ..

try:
    data = unpickler.load()
except EOFError:
    data = list()  # or whatever you want

EOFError is simply raised, because it was reading an empty file, it just meant End of File ..

0 _

9,90111 gold badges75 silver badges108 bronze badges

answered Jul 16, 2014 at 23:23

Amr AymanAmr Ayman

1,1191 gold badge8 silver badges24 bronze badges

You can catch that exception and return whatever you want from there.

open(target, 'a').close()
scores = {};
try:
    with open(target, "rb") as file:
        unpickler = pickle.Unpickler(file);
        scores = unpickler.load();
        if not isinstance(scores, dict):
            scores = {};
except EOFError:
    return {}

answered Jul 16, 2014 at 22:39

jramirezjramirez

8,4117 gold badges33 silver badges46 bronze badges

if path.exists(Score_file):
      try : 
         with open(Score_file , "rb") as prev_Scr:

            return Unpickler(prev_Scr).load()

    except EOFError : 

        return dict()

answered Mar 30, 2018 at 21:19

jukoojukoo

312 bronze badges

Had the same issue. It turns out when I was writing to my pickle file I had not used the file.close(). Inserted that line in and the error was no more.

answered Mar 3, 2022 at 6:06

I have encountered this error many times and it always occurs because after writing into the file, I didn’t close it. If we don’t close the file the content stays in the buffer and the file stays empty.
To save the content into the file, either file should be closed or file_object should go out of scope.

That’s why at the time of loading it’s giving the ran out of input error because the file is empty. So you have two options :

file_object.close()
file_object.flush(): if you don’t wanna close your file in between the program, you can use the flush() function as it will forcefully move the content from the buffer to the file.

answered Jun 1, 2021 at 10:35

This error comes when your pickle file is empty (0 Bytes). You need to check the size of your pickle file first. This was the scenario in my case. Hope this helps!

answered Dec 4, 2022 at 18:11

Muhammad TalhaMuhammad Talha

6041 gold badge4 silver badges9 bronze badges

Note that the mode of opening files is ‘a’ or some other have alphabet ‘a’ will also make error because of the overwritting.

pointer = open('makeaafile.txt', 'ab+')
tes = pickle.load(pointer, encoding='utf-8')

answered Dec 8, 2019 at 12:53

temp_model = os.path.join(models_dir, train_type + '_' + part + '_' + str(pc))
# print(type(temp_model)) # <class 'str'>
filehandler = open(temp_model, "rb")
# print(type(filehandler)) # <class '_io.BufferedReader'>
try:
    pdm_temp = pickle.load(filehandler)
except UnicodeDecodeError:
    pdm_temp = pickle.load(filehandler, fix_imports=True, encoding="latin1")

answered Aug 1, 2021 at 14:47

from os.path import getsize as size
from pickle import *
if size(target)>0:
    with open(target,'rb') as f:
        scores={i:j for i,j in enumerate(load(f))}
else: scores={}

#line 1.
we importing Function ‘getsize’ from Library ‘OS’ sublibrary ‘path’ and we rename it with command ‘as’ for shorter style of writing. Important is hier that we loading only one single Func that we need and not whole Library!
line 2.
Same Idea, but when we dont know wich modul we will use in code at the begining, we can import all library using a command ‘*’.
line 3.
Conditional Statement… if size of your file >0 ( means obj is not an empty). ‘target’ is variable that schould be a bit earlier predefined.
just an Example : target=(r’d:dir1dir.2..YourDataFile.bin’)
Line 4.
‘With open(target) as file:’ an open construction for any file, u dont need then to use file.close(). it helps to avoid some typical Errors such as «Run out of input» or Permissions rights.
‘rb’ mod means ‘rea binary’ that u can only read(load) the data from your binary file but u cant modify/rewrite it.
Line5.
List comprehension method in applying to a Dictionary..
line 6. Case your datafile is empty, it will not raise an any Error msg, but return just an empty dictionary.

answered May 26, 2022 at 14:20

Источник

“Eoferror: ran out of input” is an error that occurs during the programming process. It generally happens because the file is empty and has no input. Eoferror ran out of input

Thus, instead of finishing the program the usual way, it shows an eoferror error message. In this guide, directions and solutions to troubleshoot this issue have been discussed.

Contents

Why Does an Eoferror: Ran Out of Input Error Occur?
- – The File Is Empty
- – Using Unnecessary Functions in the Program
- – Overwrite a Pickle File
- – Using an Unknown File Name
- – Using an Incorrect Syntax
How To Fix Eoferror: Ran Out of Input Error?
- – Use an Additional Command To Show That the File Is Empty
- – Avoid Using an Unnecessary Function in the Program
- – Avoid Overwriting a Pickle File
- – Do Not Use an Unknown Filename
- – Use the Correct Syntax
FAQs
- 1. How To Fix Eoferror Eof When Reading a Line in Python Without Errors?
- 2. How To Read a Pickle File in Python To Avoid an Eoferror Error?
Conclusion

Why Does an Eoferror: Ran Out of Input Error Occur?

The eoferror ran out of input error occurs mainly because a program calls out an empty file. Some other causes include:

The file is empty.
Using unnecessary functions in the program.
Overwrite a pickle file.
Using an unknown filename.
Using an incorrect syntax: df=pickle.load(open(‘df.p’,’rb’))

– The File Is Empty

When a file is empty and has no input details in it, the program error occurs when that file is called out. It is also known as a pickle.load eoferror error.

Given below are a quick program and its output that explains the cause of the error.

Program:

Open(target, ‘c’).close()

scores = {};

with open(target, “rb”) as file:

unpickler = pickle.Unpickler(file);

scores = unpickler.load();

if not isinstance(scores, dict):

scores = {};

Output:

Traceback (most recent call last):

File “G:pythonpenduuser_test.py”, line 3, in :

save_user_points(“Magixs”, 31);

File “G:pythonpenduuser.py”, line 22, in save_user_points:

scores = unpickler.load();

EOFError: Ran out of input

Now, the reason why this error occurred was that the program called an empty file, and no other command was given.

– Using Unnecessary Functions in the Program

Sometimes, using an unnecessary function in the program can lead to undefined behavior in the output or errors such as EOFError: Ran out of the input.

Therefore, avoid using functions that are not required. Here’s the same example from above for avoiding confusion:

Open(target, ‘c’).close()

scores = {};

with open(target, “rb”) as file:

unpickler = pickle.Unpickler(file);

scores = unpickler.load();

if not isinstance(scores, dict):

scores = {};

– Overwrite a Pickle File

Sometimes, an empty pickle file can come as a surprise. This is because the programmer may have opened the filename through ‘bw’ or some other mode that could have overwritten the file.

Here’s an example of overwritten filename program:

filename = ‘do.pkl’

with open(filename, ‘bw’) as g:

classification_dict = pickle.load(g)

The function “classification_dict = pickle.load(g)” will overwrite the pickled file. This type of error can be made by mistake before using:

open(filename, ‘rb’) as g

Now, due to this, the programmer will get an EOFError because the previous block of code overwrote the do.pkl file.

– Using an Unknown File Name

This error occurs when the program has a filename that was not recognized earlier. Addressing an unrecognized filename in the middle of the program can cause various programming errors, including the “eoferror” error.

Eoferror has various types depending on the programming language and syntax. Some of them are:

Eoferror: ran out of input pandas.
Eoferror: ran out of input PyTorch.
Eoferror: ran out of input yolov5.

– Using an Incorrect Syntax

When typing a program, one has to be careful with the usage of the syntax. Wrong functions at the wrong time are also included in syntax errors. Sometimes overwriting filenames can cause syntax errors. Here’s a quick example of writing a pickle file:

pickle.dump(dg,open(‘dg.a’,’hw’))

However, if the programmer copied this code to reopen it but forgot to change ‘wb’ to ‘rb’, then that can cause overwriting syntax error:

dg=pickle.load(open(‘dg.a’,’hw’))

There are multiple ways in which this error can be resolved. Some common ways to fix this issue include using an additional command to show that the file is empty, avoiding unnecessary functions in the program and refraining from overwriting the pickle file.

A well-known way to fix this issue is by setting a condition in case the file is empty. If the condition is not included in the coding, an eoferror error will occur. The “ran out of input” means the end of a file and that it is empty.

– Use an Additional Command To Show That the File Is Empty

While typing a program and addressing a file, use an additional command that does not cause any error in the output due to an empty file. The error “eoferror ran out of input” can be easily fixed by doing what is recommended.

Let’s use the same example given above at the start. To fix that error, here’s how the program should have been written:

import os

scores = {}

if os.path.getsize(target) > 0:

with open(target, “cr”) as h:

unpickler = pickle.Unpickler(h)

# if the file is not empty, scores will be equal

# to the value unpickled

scores = unpickler.load()

– Avoid Using an Unnecessary Function in the Program

As the heading explains itself, do not use unnecessary functions while coding because it can confuse the programmer, thus causing eoferror error in the output.

The top line containing, the “Open(target, ‘a’).close()” function is not necessary in the program given in the section “using unnecessary function in the program”. Thus, it can cause issues or confusion to programmers while typing codes.

– Avoid Overwriting a Pickle File

Another way to remove the program’s eoferror errors is by rechecking and correcting the overwritten pickle file. The programmer can also try to avoid overwriting files using different techniques.

It is recommended to keep a note of the files the programmer will be using in the program to avoid confusion. Previously, an example was given in the section, “Using an incorrect syntax”, so keeping that in mind, be careful with the overwriting of files.

Here is the example with the correct syntax to avoid overwriting:

pickle.dump(dg,open(‘dg.e’,’gb’))

dg=pickle.load(open(‘dg.e’,’gb’))

This has caused an overwriting issue. The correct way is:

dg=pickle.load(open(‘dg.e’,’ub’))

– Do Not Use an Unknown Filename

Before calling out any filename, it must be registered in the library while programming so that the user may have desired output when it is called. However, it is considered an unknown filename if it is not registered and the file has been called out.

Calling an unknown filename causes an eoferror error message in your developing platform. The user will be unable to get the desired output and will end up stuck in this error. For example, the user entered two filenames in the program, but only one is registered, and the other isn’t.

Let’s take “gd” as a registered filename and “ar” as a non-registered filename (unknown). Therefore:

import os

scores = {} # scores is an empty dict already

if os.path.getsize(target) > 0:

with open(target, “ar”) as g:

unpickler = pickle.Unpickler(g)

# if the file is not empty, scores will be equal

# to the value unpickled

scores = unpickler.load()

As seen above, the filename used here is unknown to the program. Thus, the output of this program will include errors. So, make sure the file is registered.

– Use the Correct Syntax

This is another common reason for the eoferror input error while typing a program in the python programming language. Therefore, an easy way to resolve this is by taking a few notes.

Before starting the coding process, search and note down the basic syntaxes of that particular program, such as Python, Java and C++ etc.

Doing so will help beginners and make it significantly easy for them to avoid syntax errors while coding. Make sure to enter the correct syntax and do not overwrite, as that too can cause syntax errors.

FAQs

1. How To Fix Eoferror Eof When Reading a Line in Python Without Errors?

The most common reason behind Eoferror is that you have reached the end of the file without reading all the data. To fix this error, make sure to read all the data in the file before trying to access its contents. It can be done by using a loop to read through the file’s contents.

2. How To Read a Pickle File in Python To Avoid an Eoferror Error?

The programmer can use the pandas library to read a pickle file in Python. The pandas module has a read_pickle() method that can be used to read a pickle file. By using this, one can avoid the eoferror empty files issue.

This is because the pandas library in Python detects such errors beforehand. Resulting in a much smoother programming experience.

Conclusion

After reading this article thoroughly, the reader will be able to do their programming much more quickly because they’ll know why the eoferror ran out of input error messages. Here is a quick recap of this guide:

The eoferror error usually occurs when the file is empty or the filename is accidentally overwritten.
The best way to avoid errors like eoferror is by correcting the syntax
Ensure that before calling the pickled file, the program should also have an alternative command in case the pickled file is empty and has no input in it.
When working in Jupyter, or the console (Spyder), write a wrapper over the reading/writing code and call the wrapper subsequently.

The reader can now tactfully handle this error and continue doing their programming efficiently, and if you have some difficulty, feel free to come back to read this guide. Thank you for reading!

Author
Recent Posts

Position Is Everything: Your Go-To Resource for Learn & Build: CSS,JavaScript,HTML,PHP,C++ and MYSQL.

Источник

Уведомления

Начало
» Python для новичков
» Ran out of input

#1 Март 30, 2016 13:59:14

Ran out of input

def top_scores(score):
    """Forms a top scores list"""
    name = input("Enter your name")
    
    f = open("pickles11.dat", "wb+")
    top_scores = pickle.load(f)
    top_scores[score] = name
    pickle.dump(top_scores, f)
    f.close()
    keys = top_scores.keys()
    keys = list(keys)
    keys.sort(reverse=True)
    print("nTop scores:")
    
    for i in keys:
        print(top_scores[i], i)

При выполнении возникает ошибка:
top_scores = pickle.load(f)
EOFError: Ran out of input

Подскажите, пожалуйста, где здесь проблема.

Офлайн

Пожаловаться

#2 Март 30, 2016 14:56:55

Ran out of input

Stranger

f = open("pickles11.dat", "wb+")

wb+ стирает содержимое файла.

Онлайн

Пожаловаться

#3 Март 30, 2016 15:02:59

Ran out of input

Сначала получаем значение, потом его изменяем и вновь записываем, wb+ это позволяет. Я не прав?

P.S. Да и в принципе не важно, что оно делает, просто подскажите, как сделать, чтобы всё заработало

Отредактировано Stranger (Март 30, 2016 15:06:38)

Прикреплённый файлы:
Снимок экрана от 2016-03-30 15-00-47.png (212,3 KБ)

Офлайн

Пожаловаться

#5 Март 30, 2016 15:25:37

Ran out of input

Ну так в файл перезаписывается уже полученная и измененная ценность, или я сильно ошибаюсь?

Офлайн

Пожаловаться

#6 Март 30, 2016 15:31:15

Ran out of input

Stranger
Откройте файл с wb+ и прочтитайте его содержимое.
Согласитесь, проще сделать это, чем гадать?

Офлайн

Пожаловаться

#7 Март 30, 2016 15:47:54

Ran out of input

def top_scores(score):
    """Forms a top scores list"""
    name = input("Enter your name")
    f = open("pickles11.dat", "rb")
    top_scores = pickle.load(f)
    top_scores[score] = name
    f.close()
    f = open("pickles11.dat", "wb")
    pickle.dump(top_scores, f)
    f.close()
    keys = top_scores.keys()
    keys = list(keys)
    keys.sort(reverse=True)
    print("nTop scores:")
    
    for i in keys:
        print(top_scores[i], i)

Да, вы правы, спасибо за помощь. Переписал, всё работает.

Офлайн

Пожаловаться

Источник

I am a tensorflow noob. When I run «./experiments/scripts/train_faster_rcnn.sh 0 pascal_voc vgg16», some issues occurs, just like below:

Writing mine VOC results file
VOC07 metric? Yes
Traceback (most recent call last):
File «/media/tf/MyFiles/codes/tf-faster-rcnn/tools/../lib/datasets/voc_eval.py», line 126, in voc_eval
recs = pickle.load(f)
EOFError: Ran out of input

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File «./tools/test_net.py», line 120, in
test_net(sess, net, imdb, filename, max_per_image=args.max_per_image)
File «/media/tf/MyFiles/codes/tf-faster-rcnn/tools/../lib/model/test.py», line 193, in test_net
imdb.evaluate_detections(all_boxes, output_dir)
File «/media/tf/MyFiles/codes/tf-faster-rcnn/tools/../lib/datasets/pascal_voc.py», line 287, in evaluate_detections
self._do_python_eval(output_dir)
File «/media/tf/MyFiles/codes/tf-faster-rcnn/tools/../lib/datasets/pascal_voc.py», line 250, in _do_python_eval
use_07_metric=use_07_metric)
File «/media/tf/MyFiles/codes/tf-faster-rcnn/tools/../lib/datasets/voc_eval.py», line 128, in voc_eval
recs = pickle.load(f, encoding=’bytes’)
EOFError: Ran out of input
Command exited with non-zero status 1
7.86user 0.96system 0:09.05elapsed 97%CPU (0avgtext+0avgdata 1956200maxresident)k
0inputs+56outputs (0major+355880minor)pagefaults 0swaps

I need help,and is there anyone can give me some solutions?Thanks a lot!

Источник

Eoferror ran out of input ошибка

Why Does an Eoferror: Ran Out of Input Error Occur?

– The File Is Empty

– Using Unnecessary Functions in the Program

– Overwrite a Pickle File

– Using an Unknown File Name

– Using an Incorrect Syntax

– Use an Additional Command To Show That the File Is Empty

– Avoid Using an Unnecessary Function in the Program

– Avoid Overwriting a Pickle File

– Do Not Use an Unknown Filename

– Use the Correct Syntax

FAQs

1. How To Fix Eoferror Eof When Reading a Line in Python Without Errors?

2. How To Read a Pickle File in Python To Avoid an Eoferror Error?

Conclusion

Уведомления

#1 Март 30, 2016 13:59:14

Ran out of input

#2 Март 30, 2016 14:56:55

Ran out of input

#3 Март 30, 2016 15:02:59

Ran out of input

#5 Март 30, 2016 15:25:37

Ran out of input

#6 Март 30, 2016 15:31:15

Ran out of input

#7 Март 30, 2016 15:47:54

Ran out of input

I am a tensorflow noob. When I run «./experiments/scripts/train_faster_rcnn.sh 0 pascal_voc vgg16», some issues occurs, just like below:

А вот еще интересные материалы: