aiofiles | File support for asyncio | Reactive Programming library

 by   Tinche Python Version: 23.2.1 License: Apache-2.0

kandi X-RAY | aiofiles Summary

kandi X-RAY | aiofiles Summary

aiofiles is a Python library typically used in Programming Style, Reactive Programming applications. aiofiles has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. However aiofiles build file is not available. You can install using 'pip install aiofiles' or download it from GitHub, PyPI.

File support for asyncio
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            kandi-support Support

              aiofiles has a medium active ecosystem.
              It has 2288 star(s) with 142 fork(s). There are 36 watchers for this library.
              There were 2 major release(s) in the last 12 months.
              There are 47 open issues and 60 have been closed. On average issues are closed in 63 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of aiofiles is 23.2.1

            kandi-Quality Quality

              aiofiles has 0 bugs and 0 code smells.

            kandi-Security Security

              aiofiles has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              aiofiles code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              aiofiles is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              aiofiles releases are not available. You will need to build from source code and install.
              Deployable package is available in PyPI.
              aiofiles has no build file. You will be need to create the build yourself to build the component from source.
              aiofiles saves you 384 person hours of effort in developing the same functionality from scratch.
              It has 1380 lines of code, 130 functions and 17 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed aiofiles and discovered the below as its top functions. This is intended to give you an instant insight into aiofiles implemented functionality, and help decide if they suit your requirements.
            • Creates a temporary file context manager
            • Create a temporary file
            • Wrap a function in an event loop
            • Creates a builder for the given attributes
            • Create a coroutine method for the given attribute
            • Creates a class proxy method
            • Creates a proxy method for the given attribute name
            • Creates a class proxy for the given attributes
            • Make a proxy property
            • Creates a condition builder
            • Creates a method that returns the decorated method
            • Create a temporary directory manager
            • Create a temporary directory
            • Create a temporary file context manager
            Get all kandi verified functions for this library.

            aiofiles Key Features

            No Key Features are available at this moment for aiofiles.

            aiofiles Examples and Code Snippets

            详情页的思考
            Pythondot img1Lines of Code : 141dot img1no licencesLicense : No License
            copy iconCopy
            def find_data(self, col="infoq_seed"):
                    # 获取状态为0的数据
                    data = self.db[col].find({"status": 0})
                    gen = (item for item in data)
                    return gen
            
            async def run(data):
                crawler.info("Start Spider")
                async with aiohttp.connecto  
            aiocsv,Example
            Pythondot img2Lines of Code : 36dot img2License : Permissive (MIT)
            copy iconCopy
            import asyncio
            import csv
            
            import aiofiles
            from aiocsv import AsyncReader, AsyncDictReader, AsyncWriter, AsyncDictWriter
            
            async def main():
                # simple reading
                async with aiofiles.open("some_file.csv", mode="r", encoding="utf-8", newline="") as   
            copy iconCopy
            echo $XDG_SESSION_TYPE
            
            How do I save a FastAPI UploadFile which is a zip file to disk as .zip?
            Pythondot img4Lines of Code : 27dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import aiofiles
            @app.post("/upload")
            async def upload(file: UploadFile = File(...)):
                async with aiofiles.open(file.filename, 'wb') as f:
                    while content := await file.read(1024): # async read chunk
                        await f.write(conte
            No output when executing the script python 3.8.5 VSCode
            Pythondot img5Lines of Code : 3dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            theobj = asyncio.run(App().main())
            theobj()
            
            Python, how can I asynchronously save the PIL images?
            Pythondot img6Lines of Code : 11dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            async def save_image(path: str, image: memoryview) -> None:
                async with aiofiles.open(path, "wb") as file:
                    await file.write(image)
            
            
            image = Image.open(...)
            buffer = BytesIO()
            image.save(buffer, format="JPEG")
            
            await save_ima
            Extracting frame fails with: Invalid data found when processing input
            Pythondot img7Lines of Code : 98dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
             async with aiofiles.tempfile.NamedTemporaryFile("wb", delete=False) as file:
            
            import subprocess
            import asyncio
            from dataclasses import dataclass
            import shlex
            import aiofiles
            import os
            import logging
            import imghdr
            
            
            Python Error in Reading Files using Aiofiles
            Pythondot img8Lines of Code : 7dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import asyncio
            async def read_files():
               async with aiofiles.open('/tmp/test/abc_20211105.txt','r') as f:
                  await f.read() 
            
            asyncio.run(read_files())
            
            Concurrent writing to multiple files using asyncio
            Pythondot img9Lines of Code : 27dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import json
            import datetime
            import aiofiles
            
            async def main():
                def mk_record(index):
                    # simulate some JSON content that I want to write to a file
                    return {
                        'index': index,
                        'message': f"Message {ind
            How do I separate my discord.py balance for different servers?
            Pythondot img10Lines of Code : 37dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import json
            
            # reading
            def get_bank_data(server_name):
                with open("bank.json", "r") as f:
                    database = json.load(f)
                    users = database.get(server_name, {})
                return users
            
            # writing
            def put_bank_data(server_name, users):
             

            Community Discussions

            QUESTION

            Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway
            Asked 2022-Mar-01 at 16:58

            I try to use library cv2 for changing picture. In mode debug I found out that problem in function cv2.namedWindow:

            ...

            ANSWER

            Answered 2021-Nov-07 at 00:17

            I reverted back to Xorg from wayland and its working, no more warnings

            Here are the steps:

            1. Disbled Wayland by uncommenting WaylandEnable=false in the /etc/gdm3/custom.conf
            2. Add QT_QPA_PLATFORM=xcb in /etc/environment
            3. Check whether you are on Wayland or Xorg using:

            Source https://stackoverflow.com/questions/69828508

            QUESTION

            Python async requests + writing files confusion
            Asked 2022-Mar-01 at 06:53

            I have a simple python async program that retrieves a gzipped file from a particular URL. I have used the aiohttp for async requests. As per the aiohttp docs (https://docs.aiohttp.org/en/stable/client_quickstart.html), I have used their example under 'Streaming Response Content' in my test method to write the data.

            ...

            ANSWER

            Answered 2022-Mar-01 at 06:53

            Good question. Look at the following little program, which runs two tasks. Each has an async context manager and an async iterator:

            Source https://stackoverflow.com/questions/71282561

            QUESTION

            How do I save a FastAPI UploadFile which is a zip file to disk as .zip?
            Asked 2022-Feb-13 at 10:09

            I'm uploading zip files as UploadFile via FastAPI and want to save them to the filesystem using async aiofiles like so:

            ...

            ANSWER

            Answered 2022-Feb-09 at 22:07

            QUESTION

            No output when executing the script python 3.8.5 VSCode
            Asked 2021-Dec-14 at 16:07

            I´m developing a simple reactive programming script example to download images from a web, but when I execute the script in VScode I do not get any type of output, I already tried creating a VirtualEnv

            In the terminal i get this output:

            PS C:\Users\ernes\Desktop\paradigmas> & C:/Users/ernes/AppData/Local/Programs/Python/Python38/python.exe c:/Users/ernes/Desktop/paradigmas/jose.py PS C:\Users\ernes\Desktop\paradigmas>

            CODE: ...

            ANSWER

            Answered 2021-Dec-14 at 16:07

            Add this to the bottom, outside of the class

            Source https://stackoverflow.com/questions/70350945

            QUESTION

            Python, how can I asynchronously save the PIL images?
            Asked 2021-Dec-10 at 18:04

            For asynchronous file saving, I can use aiofiles library.

            To use aiofiles library I'd have to do something like that:

            ...

            ANSWER

            Answered 2021-Dec-10 at 18:04

            Thanks to the comment posted by @MarkSetchell I managed to find the solution.

            Source https://stackoverflow.com/questions/70306307

            QUESTION

            Extracting frame fails with: Invalid data found when processing input
            Asked 2021-Nov-09 at 23:28

            I have the following method to create a dummy video file:

            ...

            ANSWER

            Answered 2021-Nov-09 at 23:28

            It looks like you have to make sure the data is written to the temporary file, before executing FFmpeg.

            I don't have any experience with asyncio and aiofiles and I am running Windows 10, so I am not sure about the Linux behavior...

            I tried to add await file.flush() after file.write(data), but the FFmpeg execution result was "Permission denied".

            I solved it using the solution from the following post:

            • Add delete=False argument to tempfile.NamedTemporaryFile:

            Source https://stackoverflow.com/questions/69900935

            QUESTION

            Python Error in Reading Files using Aiofiles
            Asked 2021-Nov-06 at 00:13

            Simple Problem statement. I want to read files asynchronously . My problem is when I try to read a file using aiofiles.open it just errors out with the cryptic messsage

            ...

            ANSWER

            Answered 2021-Nov-06 at 00:13

            The aiofiles.open context manager is meant to be used asynchronously (async with), in a coroutine. Standard synchronous context managers rely on __enter__ and __exit__ methods, while async context managers use methods named __aenter__ and __aexit__, thus, async with is necessary to call the __aenter__ and __aexit__ methods of aiofiles.open, instead of __enter__ and __exit__ (which are not defined for aiofiles.open):

            Source https://stackoverflow.com/questions/69855266

            QUESTION

            The container becomes different from the container created with run
            Asked 2021-Oct-06 at 00:20

            When I create a container using docker run I get the expected result - a container with all the packages installed. When I exit the container (without changing anything) and try to enter it again using docker exec, it doesn't have the packages installed. Can Someone explain why this happens?

            ...

            ANSWER

            Answered 2021-Oct-06 at 00:20

            When you docker run the image, you'll note the following output:

            Source https://stackoverflow.com/questions/69458232

            QUESTION

            AIOFiles Take Longer Than Normal File Operation
            Asked 2021-Sep-01 at 19:55

            I have a question I'm new to the python async world and I write some code to test the power of asyncio, I create 10 files with random content, named file1.txt, file2.txt, ..., file10.txt

            here is my code:

            ...

            ANSWER

            Answered 2021-Sep-01 at 19:55

            I post an issue #110 on aiofiles's GitHub and the author of aiofiles answer that:

            You're not doing anything wrong. What aiofiles does is delegate the file reading operations to a thread pool. This approach is going to be slower than just reading the file directly. The benefit is that while the file is being read in a different thread, your application can do something else in the main thread.

            A true, cross-platform way of reading files asynchronously is not available yet, I'm afraid :)

            I hope it be helpful to anybody that has the same problem

            Source https://stackoverflow.com/questions/68957147

            QUESTION

            Saving gzip file from Async HTTP request with Python
            Asked 2021-Aug-03 at 20:57

            I'm trying to save a bunch of gzip files from an API response in async. Basically, I'm getting an array with different URI's and I have to append these to a base URL in order to download the .gz file. In the .gz files is a text file formatted as JSON. I already have code working in a synchronous way, but I would like to try async to minimize the runtime. I have tried an async way below and this does give me .gz files, but when I try to extract these nothing is in them. Any help or ideas are much appreciated!

            This is the synchronous code:

            ...

            ANSWER

            Answered 2021-Aug-03 at 20:53

            Take a look at the asynchronous for loop, it is a built in construct in newer Python 3 versions.

            See here: https://quentin.pradet.me/blog/using-asynchronous-for-loops-in-python.html

            Source https://stackoverflow.com/questions/68641934

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install aiofiles

            You can install using 'pip install aiofiles' or download it from GitHub, PyPI.
            You can use aiofiles like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

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            Install
          • PyPI

            pip install aiofiles

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            https://github.com/Tinche/aiofiles.git

          • CLI

            gh repo clone Tinche/aiofiles

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            git@github.com:Tinche/aiofiles.git

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