pychrome

A Python Package for the Google Chrome Dev Protocol, more document

Table of Contents

• Installation
• Setup Chrome
• Getting Started
• Tab management
• Debug
• Examples
• Publish
• Ref

Installation

To install pychrome, simply:

$ pip install -U pychrome

or from GitHub:

$ pip install -U git+https://github.com/fate0/pychrome.git

or from source:

$ python setup.py install

Setup Chrome

simply:

$ google-chrome --remote-debugging-port=9222

or headless mode (chrome version >= 59):

$ google-chrome --headless --disable-gpu --remote-debugging-port=9222

or use docker:

$ docker pull fate0/headless-chrome
$ docker run -it --rm --cap-add=SYS_ADMIN -p9222:9222 fate0/headless-chrome

Getting Started

import pychrome

# create a browser instance
browser = pychrome.Browser(url="http://127.0.0.1:9222")

# create a tab
tab = browser.new_tab()

# register callback if you want
def request_will_be_sent(**kwargs):
    print("loading: %s" % kwargs.get('request').get('url'))

tab.Network.requestWillBeSent = request_will_be_sent

# start the tab 
tab.start()

# call method
tab.Network.enable()
# call method with timeout
tab.Page.navigate(url="https://github.com/fate0/pychrome", _timeout=5)

# wait for loading
tab.wait(5)

# stop the tab (stop handle events and stop recv message from chrome)
tab.stop()

# close tab
browser.close_tab(tab)

or (alternate syntax)

import pychrome

browser = pychrome.Browser(url="http://127.0.0.1:9222")
tab = browser.new_tab()

def request_will_be_sent(**kwargs):
    print("loading: %s" % kwargs.get('request').get('url'))


tab.set_listener("Network.requestWillBeSent", request_will_be_sent)

tab.start()
tab.call_method("Network.enable")
tab.call_method("Page.navigate", url="https://github.com/fate0/pychrome", _timeout=5)

tab.wait(5)
tab.stop()

browser.close_tab(tab)

more methods or events could be found in Chrome DevTools Protocol

Debug

set DEBUG env variable:

Tab management

run pychrome -h for more info

example:

Examples

please see the examples directory for more examples

Publish

1. install deps pip install setuptools wheel twine
2. pacakge python setup.py sdist bdist_wheel
3. upload twine upload dist/*

Ref

• chrome-remote-interface
• Chrome DevTools Protocol