The next generation HTTP client.

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  • License: BSD License (BSD)
  • Author: Tom Christie
  • Requires: Python >=3.6
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Project description

HTTPX

HTTPX - A next-generation HTTP client for Python.

Build Status Coverage Package version

Note: This project should be considered as an "alpha" release. It is substantially API complete, but there are still some areas that need more work.

Let's get started...

>>> import httpx
>>> r = httpx.get('https://www.example.org/')
>>> r
<Response [200 OK]>
>>> r.status_code
200
>>> r.http_version
'HTTP/1.1'
>>> r.headers['content-type']
'text/html; charset=UTF-8'
>>> r.text
'<!doctype html>\n<html>\n<head>\n<title>Example Domain</title>...'

Features

HTTPX builds on the well-established usability of requests, and gives you:

Plus all the standard features of requests...

  • 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 (TODO)
  • Connection Timeouts
  • Streaming Downloads
  • .netrc Support
  • Chunked Requests

Installation

Install with pip:

$ pip install httpx

httpx requires Python 3.6+

Documentation

Project documentation is available at www.encode.io/httpx/.

For a run-through of all the basics, head over to the QuickStart.

For more advanced topics, see the Advanced Usage section, or the specific topics on making Parallel Requests or using the Async Client.

The Developer Interface provides a comprehensive API reference.

Contribute

If you want to contribute with HTTPX check out the Contributing Guide to learn how to start.

Dependencies

The httpx project relies on these excellent libraries:

  • h2 - HTTP/2 support.
  • h11 - HTTP/1.1 support.
  • certifi - SSL certificates.
  • chardet - Fallback auto-detection for response encoding.
  • hstspreload - determines whether IDNA-encoded host should be only accessed via HTTPS.
  • idna - Internationalized domain name support.
  • rfc3986 - URL parsing & normalization.
  • brotlipy - Decoding for "brotli" compressed responses. (Optional)

A huge amount of credit is due to requests for the API layout that much of this work follows, as well as to urllib3 for plenty of design inspiration around the lower-level networking details.

— ⭐️ —

HTTPX is BSD licensed code. Designed & built in Brighton, England.

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog.

0.7.7 (November 15, 2019)

Fixed

  • Resolve an issue with cookies behavior on redirect requests. (Pull #529)

Added

  • Add request/response DEBUG logs. (Pull #502)
  • Use TRACE log level for low level info. (Pull #500)

0.7.6 (November 2, 2019)

Removed

  • Drop proxies parameter from the high-level API. (Pull #485)

Fixed

  • Tweak multipart files: omit null filenames, add support for str file contents. (Pull #482)
  • Cache NETRC authentication per-client. (Pull #400)
  • Rely on getproxies for all proxy environment variables. (Pull #470)
  • Wait for the asyncio stream to close when closing a connection. (Pull #494)

0.7.5 (October 10, 2019)

Added

  • Allow lists of values to be passed to params. (Pull #386)
  • ASGIDispatch, WSGIDispatch are now available in the httpx.dispatch namespace. (Pull #407)
  • HTTPError is now available in the httpx namespace. (Pull #421)
  • Add support for start_tls() to the Trio concurrency backend. (Pull #467)

Fixed

  • Username and password are no longer included in the Host header when basic authentication credentials are supplied via the URL. (Pull #417)

Removed

  • The .delete() function no longer has json, data, or files parameters to match the expected semantics of the DELETE method. (Pull #408)
  • Removed the trio extra. Trio support is detected automatically. (Pull #390)

0.7.4 (September 25, 2019)

Added

  • Add Trio concurrency backend. (Pull #276)
  • Add params parameter to Client for setting default query parameters. (Pull #372)
  • Add support for SSL_CERT_FILE and SSL_CERT_DIR environment variables. (Pull #307)
  • Add debug logging to calls into ASGI apps. (Pull #371)
  • Add debug logging to SSL configuration. (Pull #378)

Fixed

  • Fix a bug when using Client without timeouts in Python 3.6. (Pull #383)
  • Propagate Client configuration to HTTP proxies. (Pull #377)

0.7.3 (September 20, 2019)

Added

  • HTTP Proxy support. (Pulls #259, #353)
  • Add Digest authentication. (Pull #332)
  • Add .build_request() method to Client and AsyncClient. (Pull #319)
  • Add .elapsed property on responses. (Pull #351)
  • Add support for SSLKEYLOGFILE in Python 3.8b4+. (Pull #301)

Removed

  • Drop NPN support for HTTP version negotiation. (Pull #314)

Fixed

  • Fix distribution of type annotations for mypy (Pull #361).
  • Set Host header when redirecting cross-origin. (Pull #321)
  • Drop Content-Length headers on GET redirects. (Pull #310)
  • Raise KeyError if header isn't found in Headers. (Pull #324)
  • Raise NotRedirectResponse in response.next() if there is no redirection to perform. (Pull #297)
  • Fix bug in calculating the HTTP/2 maximum frame size. (Pull #153)

0.7.2 (August 28, 2019)

  • Enforce using httpx.AsyncioBackend for the synchronous client. (Pull #232)
  • httpx.ConnectionPool will properly release a dropped connection. (Pull #230)
  • Remove the raise_app_exceptions argument from Client. (Pull #238)
  • DecodeError will no longer be raised for an empty body encoded with Brotli. (Pull #237)
  • Added http_versions parameter to Client. (Pull #250)
  • Only use HTTP/1.1 on short-lived connections like httpx.get(). (Pull #284)
  • Convert Client.cookies and Client.headers when set as a property. (Pull #274)
  • Setting HTTPX_DEBUG=1 enables debug logging on all requests. (Pull #277)

0.7.1 (August 18, 2019)

  • Include files with source distribution to be installable. (Pull #233)

0.7.0 (August 17, 2019)

  • Add the trust_env property to BaseClient. (Pull #187)
  • Add the links property to BaseResponse. (Pull #211)
  • Accept ssl.SSLContext instances into SSLConfig(verify=...). (Pull #215)
  • Add Response.stream_text() with incremental encoding detection. (Pull #183)
  • Properly updated the Host header when a redirect changes the origin. (Pull #199)
  • Ignore invalid Content-Encoding headers. (Pull #196)
  • Use ~/.netrc and ~/_netrc files by default when trust_env=True. (Pull #189)
  • Create exception base class HTTPError with request and response properties. (Pull #162)
  • Add HSTS preload list checking within BaseClient to upgrade HTTP URLs to HTTPS. (Pull #184)
  • Switch IDNA encoding from IDNA 2003 to IDNA 2008. (Pull #161)
  • Expose base classes for alternate concurrency backends. (Pull #178)
  • Improve Multipart parameter encoding. (Pull #167)
  • Add the headers proeprty to BaseClient. (Pull #159)
  • Add support for Google's brotli library. (Pull #156)
  • Remove deprecated TLS versions (TLSv1 and TLSv1.1) from default SSLConfig. (Pull #155)
  • Fix URL.join(...) to work similarly to RFC 3986 URL joining. (Pull #144)

0.6.8 (July 25, 2019)

  • Check for disconnections when searching for an available connection in ConnectionPool.keepalive_connections (Pull #145)
  • Allow string comparison for URL objects (Pull #139)
  • Add HTTP status codes 418 and 451 (Pull #135)
  • Add support for client certificate passwords (Pull #118)
  • Enable post-handshake client cert authentication for TLSv1.3 (Pull #118)
  • Disable using commonName for hostname checking for OpenSSL 1.1.0+ (Pull #118)
  • Detect encoding for Response.json() (Pull #116)

0.6.7 (July 8, 2019)

  • Check for connection aliveness on re-acquiry (Pull #111)

0.6.6 (July 3, 2019)

  • Improve USER_AGENT (Pull #110)
  • Add Connection: keep-alive by default to HTTP/1.1 connections. (Pull #110)

0.6.5 (June 27, 2019)

  • Include Host header by default. (Pull #109)
  • Improve HTTP protocol detection. (Pull #107)

0.6.4 (June 25, 2019)

  • Implement read and write timeouts (Pull #104)

0.6.3 (June 24, 2019)

  • Handle early connection closes (Pull #103)

0.6.2 (June 23, 2019)

  • Use urllib3's DEFAULT_CIPHERS for the SSLConfig object. (Pull #100)

0.6.1 (June 21, 2019)

  • Add support for setting a base_url on the Client.

0.6.0 (June 21, 2019)

  • Honor local_flow_control_window for HTTP/2 connections (Pull #98)

Project details

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Project links
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  • License: BSD License (BSD)
  • Author: Tom Christie
  • Requires: Python >=3.6
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