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httpx | A next generation HTTP client for Python | Reactive Programming library

by encode Python Version: 0.22.0 License: BSD-3-Clause

by encode Python Version: 0.22.0 License: BSD-3-Clause

Download this library from

kandi X-RAY | httpx Summary

httpx is a Python library typically used in Programming Style, Reactive Programming applications. httpx has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can install using 'pip install httpx' or download it from GitHub, PyPI.
HTTPX is a fully featured HTTP client library for Python 3. It includes an integrated command line client, has support for both HTTP/1.1 and HTTP/2, and provides both sync and async APIs.
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • httpx has a highly active ecosystem.
  • It has 8526 star(s) with 568 fork(s). There are 103 watchers for this library.
  • There were 6 major release(s) in the last 12 months.
  • There are 32 open issues and 636 have been closed. On average issues are closed in 177 days. There are 8 open pull requests and 0 closed requests.
  • It has a negative sentiment in the developer community.
  • The latest version of httpx is 0.22.0
httpx Support
Best in #Reactive Programming
Average in #Reactive Programming
httpx Support
Best in #Reactive Programming
Average in #Reactive Programming

quality kandi Quality

  • httpx has 0 bugs and 0 code smells.
httpx Quality
Best in #Reactive Programming
Average in #Reactive Programming
httpx Quality
Best in #Reactive Programming
Average in #Reactive Programming

securitySecurity

  • httpx has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • httpx code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
httpx Security
Best in #Reactive Programming
Average in #Reactive Programming
httpx Security
Best in #Reactive Programming
Average in #Reactive Programming

license License

  • httpx is licensed under the BSD-3-Clause License. This license is Permissive.
  • Permissive licenses have the least restrictions, and you can use them in most projects.
httpx License
Best in #Reactive Programming
Average in #Reactive Programming
httpx License
Best in #Reactive Programming
Average in #Reactive Programming

buildReuse

  • httpx releases are available to install and integrate.
  • Deployable package is available in PyPI.
  • Build file is available. You can build the component from source.
  • Installation instructions, examples and code snippets are available.
  • httpx saves you 4308 person hours of effort in developing the same functionality from scratch.
  • It has 11213 lines of code, 1050 functions and 62 files.
  • It has high code complexity. Code complexity directly impacts maintainability of the code.
httpx Reuse
Best in #Reactive Programming
Average in #Reactive Programming
httpx Reuse
Best in #Reactive Programming
Average in #Reactive Programming
Top functions reviewed by kandi - BETA

kandi has reviewed httpx and discovered the below as its top functions. This is intended to give you an instant insight into httpx implemented functionality, and help decide if they suit your requirements.

  • Create a new URL .
  • Handle async request .
  • Print help .
  • Main function .
  • Load SSL context .
  • Generate a stream of response data .
  • Build a request object .
  • Send a request .
  • Build the authentication header .
  • Raise exception based on status code .

httpx Key Features

A broadly requests-compatible API.

An integrated command-line client.

HTTP/1.1 and HTTP/2 support.

Standard synchronous interface, but with async support if you need it.

Ability to make requests directly to WSGI applications or ASGI applications.

Strict timeouts everywhere.

Fully type annotated.

100% test coverage.

International Domains and URLs

Keep-Alive & Connection Pooling

Sessions with Cookie Persistence

Browser-style SSL Verification

Basic/Digest Authentication

Elegant Key/Value Cookies

Automatic Decompression

Automatic Content Decoding

Unicode Response Bodies

Multipart File Uploads

HTTP(S) Proxy Support

Connection Timeouts

Streaming Downloads

.netrc Support

Chunked Requests

default

copy iconCopydownload iconDownload
$ pip install httpx

Installation

copy iconCopydownload iconDownload
$ pip install httpx

ModuleNotFoundError: No module named 'airflow.providers.slack' Airflow 2.0 (MWAA)

copy iconCopydownload iconDownload
--constraint "https://raw.githubusercontent.com/apache/airflow/constraints-main/constraints-3.7.txt"

how to persist sessions in httpx python

copy iconCopydownload iconDownload
with httpx.Client() as client:

    r = client.get('https://example.com')

Slow code when fetching data from Coinmarketcap api

copy iconCopydownload iconDownload
import asyncio
import time

import requests
import httpx


def test_sync():
    for _ in range(50):
        requests.get("https://google.com")


async def test_async():
    async with httpx.AsyncClient() as client:
        tasks = [client.get("https://google.com") for _ in range(50)]
        await asyncio.gather(*tasks)


if __name__ == "__main__":
    start = time.process_time()
    test_sync()
    print(f"sync test took {time.process_time() - start} s")

    start = time.process_time()
    asyncio.run(test_async())
    print(f"async test took {time.process_time() - start} s")


# sync test took 23.0833 s
# async test took 0.2662 s

FastAPI runs api-calls in serial instead of parallel fashion

copy iconCopydownload iconDownload
import time
import threading
from   fastapi import FastAPI, Request

TEMPLATE = "INF[{0:_>20d}]: t_id( {1: >20d} ):: {2:}"

print( TEMPLATE.format( time.perf_counter_ns(),
                        threading.get_ident(),
                       "Python Interpreter __main__ was started ..."
                        )
...
@app.get("/ping")
async def ping( request: Request ):
        """                                __doc__
        [DOC-ME]
        ping( Request ):  a mock-up AS-IS function to yield
                          a CLI/GUI self-evidence of the order-of-execution
        RETURNS:          a JSON-alike decorated dict

        [TEST-ME]         ...
        """
        print( TEMPLATE.format( time.perf_counter_ns(),
                                threading.get_ident(),
                               "Hello..."
                                )
        #------------------------------------------------- actual blocking work
        time.sleep( 5 )
        #------------------------------------------------- actual blocking work
        print( TEMPLATE.format( time.perf_counter_ns(),
                                threading.get_ident(),
                               "...bye"
                                )
        return { "ping": "pong!" }
-----------------------
@app.get("/ping")
def ping(request: Request):
    #print(request.client)
    print("Hello")
    time.sleep(5)
    print("bye")
    return "pong"
import asyncio
 
@app.get("/ping")
async def ping(request: Request):
    print("Hello")
    await asyncio.sleep(5)
    print("bye")
    return "pong"
Hello
Hello
bye
bye
@app.post("/ping")
async def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = await file.read()
    some_long_computation_task(contents)  # this blocks other requests
    print("bye")
    return "pong"
from fastapi.concurrency import run_in_threadpool
response = await run_in_threadpool(some_long_computation_task, contents)
loop = asyncio.get_running_loop()
response = await loop.run_in_executor(None, lambda: 
some_long_computation_task(contents))
@app.post("/ping")
def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = file.file.read()
    some_long_computation_task(contents)
    print("bye")
    return "pong"
-----------------------
@app.get("/ping")
def ping(request: Request):
    #print(request.client)
    print("Hello")
    time.sleep(5)
    print("bye")
    return "pong"
import asyncio
 
@app.get("/ping")
async def ping(request: Request):
    print("Hello")
    await asyncio.sleep(5)
    print("bye")
    return "pong"
Hello
Hello
bye
bye
@app.post("/ping")
async def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = await file.read()
    some_long_computation_task(contents)  # this blocks other requests
    print("bye")
    return "pong"
from fastapi.concurrency import run_in_threadpool
response = await run_in_threadpool(some_long_computation_task, contents)
loop = asyncio.get_running_loop()
response = await loop.run_in_executor(None, lambda: 
some_long_computation_task(contents))
@app.post("/ping")
def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = file.file.read()
    some_long_computation_task(contents)
    print("bye")
    return "pong"
-----------------------
@app.get("/ping")
def ping(request: Request):
    #print(request.client)
    print("Hello")
    time.sleep(5)
    print("bye")
    return "pong"
import asyncio
 
@app.get("/ping")
async def ping(request: Request):
    print("Hello")
    await asyncio.sleep(5)
    print("bye")
    return "pong"
Hello
Hello
bye
bye
@app.post("/ping")
async def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = await file.read()
    some_long_computation_task(contents)  # this blocks other requests
    print("bye")
    return "pong"
from fastapi.concurrency import run_in_threadpool
response = await run_in_threadpool(some_long_computation_task, contents)
loop = asyncio.get_running_loop()
response = await loop.run_in_executor(None, lambda: 
some_long_computation_task(contents))
@app.post("/ping")
def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = file.file.read()
    some_long_computation_task(contents)
    print("bye")
    return "pong"
-----------------------
@app.get("/ping")
def ping(request: Request):
    #print(request.client)
    print("Hello")
    time.sleep(5)
    print("bye")
    return "pong"
import asyncio
 
@app.get("/ping")
async def ping(request: Request):
    print("Hello")
    await asyncio.sleep(5)
    print("bye")
    return "pong"
Hello
Hello
bye
bye
@app.post("/ping")
async def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = await file.read()
    some_long_computation_task(contents)  # this blocks other requests
    print("bye")
    return "pong"
from fastapi.concurrency import run_in_threadpool
response = await run_in_threadpool(some_long_computation_task, contents)
loop = asyncio.get_running_loop()
response = await loop.run_in_executor(None, lambda: 
some_long_computation_task(contents))
@app.post("/ping")
def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = file.file.read()
    some_long_computation_task(contents)
    print("bye")
    return "pong"
-----------------------
@app.get("/ping")
def ping(request: Request):
    #print(request.client)
    print("Hello")
    time.sleep(5)
    print("bye")
    return "pong"
import asyncio
 
@app.get("/ping")
async def ping(request: Request):
    print("Hello")
    await asyncio.sleep(5)
    print("bye")
    return "pong"
Hello
Hello
bye
bye
@app.post("/ping")
async def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = await file.read()
    some_long_computation_task(contents)  # this blocks other requests
    print("bye")
    return "pong"
from fastapi.concurrency import run_in_threadpool
response = await run_in_threadpool(some_long_computation_task, contents)
loop = asyncio.get_running_loop()
response = await loop.run_in_executor(None, lambda: 
some_long_computation_task(contents))
@app.post("/ping")
def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = file.file.read()
    some_long_computation_task(contents)
    print("bye")
    return "pong"
-----------------------
@app.get("/ping")
def ping(request: Request):
    #print(request.client)
    print("Hello")
    time.sleep(5)
    print("bye")
    return "pong"
import asyncio
 
@app.get("/ping")
async def ping(request: Request):
    print("Hello")
    await asyncio.sleep(5)
    print("bye")
    return "pong"
Hello
Hello
bye
bye
@app.post("/ping")
async def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = await file.read()
    some_long_computation_task(contents)  # this blocks other requests
    print("bye")
    return "pong"
from fastapi.concurrency import run_in_threadpool
response = await run_in_threadpool(some_long_computation_task, contents)
loop = asyncio.get_running_loop()
response = await loop.run_in_executor(None, lambda: 
some_long_computation_task(contents))
@app.post("/ping")
def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = file.file.read()
    some_long_computation_task(contents)
    print("bye")
    return "pong"
-----------------------
@app.get("/ping")
def ping(request: Request):
    #print(request.client)
    print("Hello")
    time.sleep(5)
    print("bye")
    return "pong"
import asyncio
 
@app.get("/ping")
async def ping(request: Request):
    print("Hello")
    await asyncio.sleep(5)
    print("bye")
    return "pong"
Hello
Hello
bye
bye
@app.post("/ping")
async def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = await file.read()
    some_long_computation_task(contents)  # this blocks other requests
    print("bye")
    return "pong"
from fastapi.concurrency import run_in_threadpool
response = await run_in_threadpool(some_long_computation_task, contents)
loop = asyncio.get_running_loop()
response = await loop.run_in_executor(None, lambda: 
some_long_computation_task(contents))
@app.post("/ping")
def ping(file: UploadFile = File(...)):
    print("Hello")
    contents = file.file.read()
    some_long_computation_task(contents)
    print("bye")
    return "pong"

Fast API with pytest using AsyncClient gives 422 on post?

copy iconCopydownload iconDownload
b'"{\
  ^
device_create = DeviceCreateFactory.build(subId=random_uuid)

response = await client.post("/device", json=device_create.dict(by_alias=True))

assert response.status_code == 200
-----------------------
b'"{\
  ^
device_create = DeviceCreateFactory.build(subId=random_uuid)

response = await client.post("/device", json=device_create.dict(by_alias=True))

assert response.status_code == 200

Alternative to asyncio.gather which I can keep adding coroutines to at runtime?

copy iconCopydownload iconDownload
import asyncio
import traceback

import httpx


async def task_1(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def task_2(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/meow/")
    print(resp.read())
    await asyncio.sleep(0.5)


class CoroutineWrapper:
    def __init__(self, queue: asyncio.Queue,  coro_func, *param):
        self.func = coro_func
        self.param = param
        self.queue = queue

    async def run(self):
        try:
            await self.func(*self.param)
        except Exception:
            traceback.print_exc()
            return
        
        # put itself back into queue
        await self.queue.put(self)


class KeepRunning:
    def __init__(self):
        # queue for gathering CoroutineWrapper
        self.queue = asyncio.Queue()

    def add_task(self, coro, *param):
        wrapped = CoroutineWrapper(self.queue, coro, *param)
        
        # add tasks to be executed in queue
        self.queue.put_nowait(wrapped)

    async def task_processor(self):
        task: CoroutineWrapper
        while task := await self.queue.get():
            # wait for new CoroutineWrapper Object then schedule it's async method execution
            asyncio.create_task(task.run())


async def main():
    keep_running = KeepRunning()
    async with httpx.AsyncClient() as client:
        keep_running.add_task(task_1, client)
        keep_running.add_task(task_2, client)

        await keep_running.task_processor()

asyncio.run(main())

import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


@app.route("/meow/")
def meow():
    return "meow"


app.run()
b'meow'
b'1639920445.965701'
b'1639920446.0767004'
b'1639920446.1887035'
b'1639920446.2986999'
b'1639920446.4067013'
b'meow'
b'1639920446.516704'
b'1639920446.6267014'
...
import asyncio
import itertools

import httpx


async def main_task(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def main():
    async with httpx.AsyncClient() as client:
        for coroutine in itertools.cycle([main_task]):
            await coroutine(client)


asyncio.run(main())
import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


app.run()
b'1639918937.7694323'
b'1639918937.8804302'
b'1639918937.9914327'
b'1639918938.1014295'
b'1639918938.2124324'
b'1639918938.3204308'
...
-----------------------
import asyncio
import traceback

import httpx


async def task_1(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def task_2(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/meow/")
    print(resp.read())
    await asyncio.sleep(0.5)


class CoroutineWrapper:
    def __init__(self, queue: asyncio.Queue,  coro_func, *param):
        self.func = coro_func
        self.param = param
        self.queue = queue

    async def run(self):
        try:
            await self.func(*self.param)
        except Exception:
            traceback.print_exc()
            return
        
        # put itself back into queue
        await self.queue.put(self)


class KeepRunning:
    def __init__(self):
        # queue for gathering CoroutineWrapper
        self.queue = asyncio.Queue()

    def add_task(self, coro, *param):
        wrapped = CoroutineWrapper(self.queue, coro, *param)
        
        # add tasks to be executed in queue
        self.queue.put_nowait(wrapped)

    async def task_processor(self):
        task: CoroutineWrapper
        while task := await self.queue.get():
            # wait for new CoroutineWrapper Object then schedule it's async method execution
            asyncio.create_task(task.run())


async def main():
    keep_running = KeepRunning()
    async with httpx.AsyncClient() as client:
        keep_running.add_task(task_1, client)
        keep_running.add_task(task_2, client)

        await keep_running.task_processor()

asyncio.run(main())

import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


@app.route("/meow/")
def meow():
    return "meow"


app.run()
b'meow'
b'1639920445.965701'
b'1639920446.0767004'
b'1639920446.1887035'
b'1639920446.2986999'
b'1639920446.4067013'
b'meow'
b'1639920446.516704'
b'1639920446.6267014'
...
import asyncio
import itertools

import httpx


async def main_task(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def main():
    async with httpx.AsyncClient() as client:
        for coroutine in itertools.cycle([main_task]):
            await coroutine(client)


asyncio.run(main())
import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


app.run()
b'1639918937.7694323'
b'1639918937.8804302'
b'1639918937.9914327'
b'1639918938.1014295'
b'1639918938.2124324'
b'1639918938.3204308'
...
-----------------------
import asyncio
import traceback

import httpx


async def task_1(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def task_2(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/meow/")
    print(resp.read())
    await asyncio.sleep(0.5)


class CoroutineWrapper:
    def __init__(self, queue: asyncio.Queue,  coro_func, *param):
        self.func = coro_func
        self.param = param
        self.queue = queue

    async def run(self):
        try:
            await self.func(*self.param)
        except Exception:
            traceback.print_exc()
            return
        
        # put itself back into queue
        await self.queue.put(self)


class KeepRunning:
    def __init__(self):
        # queue for gathering CoroutineWrapper
        self.queue = asyncio.Queue()

    def add_task(self, coro, *param):
        wrapped = CoroutineWrapper(self.queue, coro, *param)
        
        # add tasks to be executed in queue
        self.queue.put_nowait(wrapped)

    async def task_processor(self):
        task: CoroutineWrapper
        while task := await self.queue.get():
            # wait for new CoroutineWrapper Object then schedule it's async method execution
            asyncio.create_task(task.run())


async def main():
    keep_running = KeepRunning()
    async with httpx.AsyncClient() as client:
        keep_running.add_task(task_1, client)
        keep_running.add_task(task_2, client)

        await keep_running.task_processor()

asyncio.run(main())

import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


@app.route("/meow/")
def meow():
    return "meow"


app.run()
b'meow'
b'1639920445.965701'
b'1639920446.0767004'
b'1639920446.1887035'
b'1639920446.2986999'
b'1639920446.4067013'
b'meow'
b'1639920446.516704'
b'1639920446.6267014'
...
import asyncio
import itertools

import httpx


async def main_task(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def main():
    async with httpx.AsyncClient() as client:
        for coroutine in itertools.cycle([main_task]):
            await coroutine(client)


asyncio.run(main())
import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


app.run()
b'1639918937.7694323'
b'1639918937.8804302'
b'1639918937.9914327'
b'1639918938.1014295'
b'1639918938.2124324'
b'1639918938.3204308'
...
-----------------------
import asyncio
import traceback

import httpx


async def task_1(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def task_2(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/meow/")
    print(resp.read())
    await asyncio.sleep(0.5)


class CoroutineWrapper:
    def __init__(self, queue: asyncio.Queue,  coro_func, *param):
        self.func = coro_func
        self.param = param
        self.queue = queue

    async def run(self):
        try:
            await self.func(*self.param)
        except Exception:
            traceback.print_exc()
            return
        
        # put itself back into queue
        await self.queue.put(self)


class KeepRunning:
    def __init__(self):
        # queue for gathering CoroutineWrapper
        self.queue = asyncio.Queue()

    def add_task(self, coro, *param):
        wrapped = CoroutineWrapper(self.queue, coro, *param)
        
        # add tasks to be executed in queue
        self.queue.put_nowait(wrapped)

    async def task_processor(self):
        task: CoroutineWrapper
        while task := await self.queue.get():
            # wait for new CoroutineWrapper Object then schedule it's async method execution
            asyncio.create_task(task.run())


async def main():
    keep_running = KeepRunning()
    async with httpx.AsyncClient() as client:
        keep_running.add_task(task_1, client)
        keep_running.add_task(task_2, client)

        await keep_running.task_processor()

asyncio.run(main())

import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


@app.route("/meow/")
def meow():
    return "meow"


app.run()
b'meow'
b'1639920445.965701'
b'1639920446.0767004'
b'1639920446.1887035'
b'1639920446.2986999'
b'1639920446.4067013'
b'meow'
b'1639920446.516704'
b'1639920446.6267014'
...
import asyncio
import itertools

import httpx


async def main_task(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def main():
    async with httpx.AsyncClient() as client:
        for coroutine in itertools.cycle([main_task]):
            await coroutine(client)


asyncio.run(main())
import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


app.run()
b'1639918937.7694323'
b'1639918937.8804302'
b'1639918937.9914327'
b'1639918938.1014295'
b'1639918938.2124324'
b'1639918938.3204308'
...
-----------------------
import asyncio
import traceback

import httpx


async def task_1(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def task_2(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/meow/")
    print(resp.read())
    await asyncio.sleep(0.5)


class CoroutineWrapper:
    def __init__(self, queue: asyncio.Queue,  coro_func, *param):
        self.func = coro_func
        self.param = param
        self.queue = queue

    async def run(self):
        try:
            await self.func(*self.param)
        except Exception:
            traceback.print_exc()
            return
        
        # put itself back into queue
        await self.queue.put(self)


class KeepRunning:
    def __init__(self):
        # queue for gathering CoroutineWrapper
        self.queue = asyncio.Queue()

    def add_task(self, coro, *param):
        wrapped = CoroutineWrapper(self.queue, coro, *param)
        
        # add tasks to be executed in queue
        self.queue.put_nowait(wrapped)

    async def task_processor(self):
        task: CoroutineWrapper
        while task := await self.queue.get():
            # wait for new CoroutineWrapper Object then schedule it's async method execution
            asyncio.create_task(task.run())


async def main():
    keep_running = KeepRunning()
    async with httpx.AsyncClient() as client:
        keep_running.add_task(task_1, client)
        keep_running.add_task(task_2, client)

        await keep_running.task_processor()

asyncio.run(main())

import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


@app.route("/meow/")
def meow():
    return "meow"


app.run()
b'meow'
b'1639920445.965701'
b'1639920446.0767004'
b'1639920446.1887035'
b'1639920446.2986999'
b'1639920446.4067013'
b'meow'
b'1639920446.516704'
b'1639920446.6267014'
...
import asyncio
import itertools

import httpx


async def main_task(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def main():
    async with httpx.AsyncClient() as client:
        for coroutine in itertools.cycle([main_task]):
            await coroutine(client)


asyncio.run(main())
import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


app.run()
b'1639918937.7694323'
b'1639918937.8804302'
b'1639918937.9914327'
b'1639918938.1014295'
b'1639918938.2124324'
b'1639918938.3204308'
...
-----------------------
import asyncio
import traceback

import httpx


async def task_1(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def task_2(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/meow/")
    print(resp.read())
    await asyncio.sleep(0.5)


class CoroutineWrapper:
    def __init__(self, queue: asyncio.Queue,  coro_func, *param):
        self.func = coro_func
        self.param = param
        self.queue = queue

    async def run(self):
        try:
            await self.func(*self.param)
        except Exception:
            traceback.print_exc()
            return
        
        # put itself back into queue
        await self.queue.put(self)


class KeepRunning:
    def __init__(self):
        # queue for gathering CoroutineWrapper
        self.queue = asyncio.Queue()

    def add_task(self, coro, *param):
        wrapped = CoroutineWrapper(self.queue, coro, *param)
        
        # add tasks to be executed in queue
        self.queue.put_nowait(wrapped)

    async def task_processor(self):
        task: CoroutineWrapper
        while task := await self.queue.get():
            # wait for new CoroutineWrapper Object then schedule it's async method execution
            asyncio.create_task(task.run())


async def main():
    keep_running = KeepRunning()
    async with httpx.AsyncClient() as client:
        keep_running.add_task(task_1, client)
        keep_running.add_task(task_2, client)

        await keep_running.task_processor()

asyncio.run(main())

import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


@app.route("/meow/")
def meow():
    return "meow"


app.run()
b'meow'
b'1639920445.965701'
b'1639920446.0767004'
b'1639920446.1887035'
b'1639920446.2986999'
b'1639920446.4067013'
b'meow'
b'1639920446.516704'
b'1639920446.6267014'
...
import asyncio
import itertools

import httpx


async def main_task(client: httpx.AsyncClient):
    resp = await client.get("http://127.0.0.1:5000/")
    print(resp.read())
    await asyncio.sleep(0.1)  # without this would be IP ban


async def main():
    async with httpx.AsyncClient() as client:
        for coroutine in itertools.cycle([main_task]):
            await coroutine(client)


asyncio.run(main())
import time

from flask import Flask
app = Flask(__name__)


@app.route("/")
def hello():
    return str(time.time())


app.run()
b'1639918937.7694323'
b'1639918937.8804302'
b'1639918937.9914327'
b'1639918938.1014295'
b'1639918938.2124324'
b'1639918938.3204308'
...
-----------------------
async def save_subs_loop():
    while True:
        asyncio.create_task(print_subs())
        time.sleep(0.1) # do not use time.sleep() in async code EVER
async def save_subs_loop():
    while True:
        asyncio.create_task(print_subs())
        await asyncio.sleep(0.1) # yield control back to loop to give tasks a chance to actually run
-----------------------
async def save_subs_loop():
    while True:
        asyncio.create_task(print_subs())
        time.sleep(0.1) # do not use time.sleep() in async code EVER
async def save_subs_loop():
    while True:
        asyncio.create_task(print_subs())
        await asyncio.sleep(0.1) # yield control back to loop to give tasks a chance to actually run

fastapi/uvicorn prevent ungzipping with httpx.AsyncClinet

copy iconCopydownload iconDownload
import httpx
from fastapi import FastAPI, Request, Response

app = FastAPI()


@app.get("/pass")
async def root(request: Request):
    async with httpx.AsyncClient() as client:
        req = client.build_request('GET', 'http://httpbin.org/gzip')
        resp = await client.send(req, stream=True)
        return Response(status_code=resp.status_code, headers=resp.headers,
                        content=b"".join([part async for part in resp.aiter_raw()]))

Python & HTTPX: How does httpx client's connection pooling work?

copy iconCopydownload iconDownload
with httpx.Client(base_url="https://example.com") as client:
    results = [client.get(f"/api/resource/{idx}") for idx in range(100)]

AttributeError: 'str' object has no attribute 'request' - googletrans

copy iconCopydownload iconDownload
from httpcore import SyncHTTPProxy
from googletrans import Translator

http_proxy = SyncHTTPProxy((b'http', b'myproxy.com', 8080, b''))
proxies = {'http': http_proxy, 'https': http_proxy }

translator = Translator(proxies=proxies)
translator.translate("colour")

New-PSSession using python only (no subprocess module)

copy iconCopydownload iconDownload
WSMan("exchange.intermedia.net", port=443, path="powershell", ...)
from pypsrp.powershell import PowerShell, RunspacePool 
from pypsrp.wsman import WSMan  

wsman = WSMan("exchange.intermedia.net", username="ENTEREMAIL",               
              password="ENTERPASSWORD",
              auth="basic", port=443, path="powershell")  

with RunspacePool(wsman, configuration_name="Hosting.PowerShell") as pool:
    print("hello")
-----------------------
WSMan("exchange.intermedia.net", port=443, path="powershell", ...)
from pypsrp.powershell import PowerShell, RunspacePool 
from pypsrp.wsman import WSMan  

wsman = WSMan("exchange.intermedia.net", username="ENTEREMAIL",               
              password="ENTERPASSWORD",
              auth="basic", port=443, path="powershell")  

with RunspacePool(wsman, configuration_name="Hosting.PowerShell") as pool:
    print("hello")

Community Discussions

Trending Discussions on httpx
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  • how to persist sessions in httpx python
  • Slow code when fetching data from Coinmarketcap api
  • FastAPI runs api-calls in serial instead of parallel fashion
  • Fast API with pytest using AsyncClient gives 422 on post?
  • Alternative to asyncio.gather which I can keep adding coroutines to at runtime?
  • fastapi/uvicorn prevent ungzipping with httpx.AsyncClinet
  • ModuleNotFoundError when running docker and poetry
  • Python & HTTPX: How does httpx client's connection pooling work?
  • AttributeError: 'str' object has no attribute 'request' - googletrans
Trending Discussions on httpx

QUESTION

ModuleNotFoundError: No module named 'airflow.providers.slack' Airflow 2.0 (MWAA)

Asked 2022-Apr-10 at 04:33

I am using Airflow 2.0 and have installed the slack module through requirements.txt in MWAA. I have installed all the below packages, but still, it says package not found

  ModuleNotFoundError: No module named 'airflow.providers.slack'.

But it still gives me an error saying module not found. What should do ?

Please find the Requirements here :

alembic
anyio
apache-airflow-backport-providers-amazon
apache-airflow-providers-amazon
apache-airflow-providers-ftp
apache-airflow-providers-http
apache-airflow-providers-imap
apache-airflow-providers-slack
apache-airflow-providers-sqlite
apispec
argcomplete
asn1crypto
attrs
Babel
beautifulsoup4
blinker
boto3
botocore
cached-property
cachelib
cattrs
certifi
cffi
chardet
charset-normalizer
click
clickclick
colorama
colorlog
commonmark
configparser
connexion
croniter
cryptography
decorator
defusedxml
Deprecated
dill
dnspython
docutils
email-validator
Flask
Flask-Admin
Flask-AppBuilder
Flask-Babel
Flask-Caching
Flask-JWT-Extended
Flask-Login
Flask-OpenID
Flask-Session
Flask-SQLAlchemy
flask-swagger
Flask-WTF
funcsigs
future
graphviz
gunicorn
h11
httpcore
httpx
idna
importlib-metadata
importlib-resources
inflection
install
iso8601
itsdangerous
Jinja2
jmespath
json-merge-patch
jsonpath-ng
jsonschema
lazy-object-proxy
lockfile
lxml
Mako
Markdown
MarkupSafe
marshmallow
marshmallow-enum
marshmallow-oneofschema
marshmallow-sqlalchemy
mypy-boto3-rds
mypy-boto3-redshift-data
natsort
packaging
pandas
pendulum
ply
prison
psutil
pycparser
Pygments
PyJWT
pyparsing
pyrsistent
python-daemon
python-dateutil
python-nvd3
python-slugify
python3-openid
pytz
pytzdata
PyYAML
redshift-connector
requests
rfc3986
rich
s3transfer
scramp
setproctitle
six
slack-sdk
slackclient
sniffio
soupsieve
SQLAlchemy
SQLAlchemy-JSONField
sqlalchemy-redshift
SQLAlchemy-Utils
swagger-ui-bundle
tabulate
tenacity
termcolor
text-unidecode
thrift
typing_extensions
tzlocal
unicodecsv
urllib3
watchtower
websocket-client
Werkzeug
wrapt
WTForms
zipp
zope.Deprecation

Thanks for your help.

Thanks, Xi

ANSWER

Answered 2022-Apr-10 at 04:33

By default, MWAA is constrained to using version 3.0.0 for the package apache-airflow-providers-slack. If you specify version 4.2.3 in requirements.txt, it will not be installed (error logs should be available in CloudWatch). You'll have to downgrade to version 3.0.0.

apache-airflow-providers-slack (constraints.txt)

OR

Add constraints file to the top of requirements.txt to use version 4.2.3 of apache-airflow-providers-slack.

Add the constraints file for your Apache Airflow v2 environment to the top of your requirements.txt file.

--constraint "https://raw.githubusercontent.com/apache/airflow/constraints-main/constraints-3.7.txt"

Source https://stackoverflow.com/questions/71801641

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

Vulnerabilities

No vulnerabilities reported

Install httpx

Or, to include the optional HTTP/2 support, use:. HTTPX requires Python 3.6+.

Support

Project documentation is available at https://www.python-httpx.org/. For a run-through of all the basics, head over to the QuickStart. For more advanced topics, see the Advanced Usage section, the async support section, or the HTTP/2 section. The Developer Interface provides a comprehensive API reference. To find out about tools that integrate with HTTPX, see Third Party Packages.

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