Почему питон не видит файл txt

Команда Python не читает файл .txt

Пытаемся следовать руководству здесь, но он работает не так, как ожидалось. Я уверен, что мне что-то не хватает.

Использование метода readline() дает те же результаты.

Выход, который я получаю:

Любые предложения о том, что может быть неправильным?

4 ответа

Ничего страшного нет. file — это объект, который вы печатаете.

print file вызывает функцию file object __repr__() , которая в этом случае определена для возврата только того, что напечатано. Чтобы распечатать содержимое файла, вы должны read() содержимое в переменную (или передать ее непосредственно на print ). Кроме того, file является встроенным типом в Python, и используя file в качестве имени переменной, вы затеняете встроенный, что почти наверняка не то, что вы хотите. Что вы хотите, так это:

How to Fix “FileNotFoundError: [Errno 2] No Such File or Directory” in Python?

Most Python developers are facing the issue of FileNotFoundError: [Errno 2] No such file or directory: ‘filename.txt’ in Python when they try to open a file from the disk drive. If you are facing the same problem, then you are in the right spot; keep reading. ��

FileNotFoundError: [Errno 2] No Such File or Directory is a common error that occurs in Python when you try to access a file that does not exist in the specified location. This error can be caused by a variety of factors, including incorrect file paths and permissions issues.

In this article, we will discuss, What is the file? How to open it? What is FileNotFoundError ? When does the No such file or directory error occur? Reasons for No such file or directory error And how to fix it, so let’s get right into the topic without further delay.

Table of Contents

How to Open a File in Python?

Python provides essential methods necessary to manage files by default. We can do most of the file manipulation using a file object. Before we read or write a file, we have to open it. We use Python’s built-in function open() to open a file. This function creates a file object, which supports many other methods, such as tell, seek, read so on.

Syntax

Access mode and buffering are optional in this syntax, but writing the correct file name is mandatory.

What is the FileNotFoundError in Python?

The FileNotFoundError exception raises during file handling. When you try to access a file or directory which doesn’t exist, it will cause a FileNotFoundError exception.

For example, if we write:

Code

Output

The above code will cause the following error message:

If you want to handle this exception properly, write file-handling statements in the try command.

Suppose you have a doubt your code may raise an error during execution. If you want to avoid an unexpected ending of the program, then you can catch that error by keeping that part of the code inside a try command.

For example, in this code, we see how to handle FileNotFoundError.

Code

The compiler executes the code given in the try block, and if the code raises a FileNotFoundError exception, then the code mentioned in the except block will get executed. If there is no error, the “else” block will get executed.

When Does The “FileNotFoundError: [Errno 2] No Such File or Directory” Error Occur?

When we try to access a file or directory that doesn’t exist, we face the error No such file or directory .

Reasons for the “FileNotFoundError: [Errno 2] No Such File or Directory” Error in Python

Here we see some common reasons for no such file or directory error.

1. Wrong file name
2. Wrong extension
3. Wrong case
4. Wrong path

The following are a few reasons why this error occurs in Python:

1. Incorrect file path: One of the most common causes of this error is an incorrect file path. Make sure that you are specifying the correct path to the file you are trying to access. You can use the os.path.exists() function to check if the file exists at the specified location.
2. File permissions: Another common cause of this error is file permissions. If you do not have permission to access the file, you will get this error. To fix this, you can try changing the file permissions using the chmod command.
3. File encoding: If you are trying to read a file that has a different encoding than what you are expecting, you may get this error. To fix this, you can use the codecs module to specify the correct encoding when you open the file.
4. File name case sensitivity: Some operating systems, such as Windows, are not case sensitive when it comes to file names, while others, such as Linux and macOS, are. If you are getting this error on a case-sensitive operating system, it could be because the file name you are specifying does not match the actual file name in the correct case. To fix this, make sure that you are specifying the file name in the correct case.
5. Check for typos: It’s always a good idea to double-check your file path for typos. Even a small typo can cause this error, so ensure you have typed the file path correctly.
6. Check for hidden files: Some operating systems hide certain files by default. If you try accessing a hidden file, you may get this error. To fix this, you can tryaccessing the file by specifying the full path, including the «.» at the beginning of the file name, which indicates a hidden file.

How to Fix the “FileNotFoundError: [Errno 2] No Such File or Directory” Error in Python?

As Python programmers, we have to take care of these common mistakes. Always double-check the file’s name, extension, case, and location.

We can write file paths in two ways absolute or relative.

In Absolute file paths, we tell the complete path from the root to the file name, for example, C:/mydir/myfile.txt.

In relative file paths, we tell the path from the perspective of our current working directory; for example, if our required file is in the current working directory, we have to write “myfile.txt”.

We can check our current working directory with the help of the following code:

Code

Output

If we want to open a file by just writing its name, we must place it in this directory. Before we move forward to another example of a solution, we have to know about the os built-in module of Python.

The python os module provides several methods that help you perform file-processing operations, such as renaming and deleting files. To utilize this module, you must import it first, and then you can call any related methods.

Now let’s see another example: open a data file and read it.

Code

Output

Conclusion

In conclusion, FileNotFoundError: [Errno 2] No Such File or Directory is a common error that occurs in Python when you try to access a file that does not exist in the specified location.

This article shows how to fix ��️ the “FileNotFoundError: [Errno 2] No Such File or Directory” error in Python. We discuss all the reasons and their solutions.

We also discuss two essential sources that provide a wide range of utility methods to handle and manipulate files and directories on the Windows operating system.

1. File object methods
2. OS object methods

Finally, with the help of this article, you get rid of no such file or directory error.

How can we check our current working directory of Python? Kindly share your current working directory path in the comments below ��.

Python FileNotFoundError: [Errno 2] No such file or directory

This error can come from calling the open() function or the os module functions that deal with files and directories.

To fix this error, you need to specify the correct path to an existing file.

Let’s see real-world examples that trigger this error and how to fix them.

Error from open() function

Suppose you use Python to open and read a file named output.txt as follows:

Python will look for the output.txt file in the current directory where the code is executed.

If not found, then Python responds with the following error:

If the file exists but in a different directory, then you need to specify the correct path to that file.

Maybe the output.txt file exists in a subdirectory like this:

To access the file, you need to specify the directory as follows:

This way, Python will look for the output.txt file inside the logs folder.

Sometimes, you might also have a file located in a sibling directory of the script location as follows:

In this case, the script.py file is located inside the code folder, and the output.txt file is located inside the logs folder.

To access output.txt , you need to go up one level from as follows:

The path ../ tells Python to go up one level from the working directory (where the script is executed)

This way, Python will be able to access the logs directory, which is a sibling of the code directory.

Alternatively, you can also specify the absolute path to the file instead of a relative path.

The absolute path shows the full path to your file from the root directory of your system. It should look something like this:

Pass the absolute path and the file name as an argument to your open() function:

You can add a try/except statement to let Python create the file when it doesn’t exist.

The code above will try to open and read the output.txt file.

When the file is not found, it will create a new file with the same name and write some strings into it.

Also, make sure that the filename or the path is not misspelled or mistyped, as this is a common cause of this error as well.

Error from os.listdir() function

You can also have this error when using a function from the os module that deals with files and directories.

For example, the os.listdir() is used to get a list of all the files and directories in a given directory.

It takes one argument, which is the path of the directory you want to scan:

The above code tries to access the assets directory and retrieve the names of all files and directories in that directory.

If the assets directory doesn’t exist, Python responds with an error:

The solution for this error is the same. You need to specify the correct path to an existing directory.

If the directory exists on your system but empty, then Python won’t raise this error. It will return an empty list instead.

Also, make sure that your Python interpreter has the necessary permission to open the file. Otherwise, you will see a PermissionError message.

Conclusion

Python shows the FileNotFoundError: [Errno 2] No such file or directory message when it can’t find the file or directory you specified.

To solve this error, make sure you the file exists and the path is correct.

Alternatively, you can also use the try/except block to let Python handle the error without stopping the code execution.

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Python can't find file [duplicate]

I am having great difficulty getting python 3.4 to recognize a path or text file on a windows 8 system. I have tried a variety of different approaches but get the similar errors (which likely implies something simple regarding the syntax).

The file itself is located in the same folder as the script file trying to open it: C:\Users\User\Desktop\Python stuff\Data.txt

for simplicity, the simplest means to access the file (at least that I know of) is f=open