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GitHub - tebelorg/RPA-Python: Python package for doing RPA

 3 years ago
source link: https://github.com/tebelorg/RPA-Python
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RPA for Python snake

v1.43 | Use Cases | API Reference | About & Credits | PyCon Video | Run on Cloud | Telegram Chat

This tool was previously known as TagUI for Python. More details on the name change, which is backward compatible so existing scripts written with import tagui as t and t.function() will still work.

To install this Python package for RPA (robotic process automation) -

pip install rpa

To use it in Jupyter notebook, Python script or interactive shell -

import rpa as r

Notes on different operating systems and optional visual automation mode -

  • rainbow_flagWindows - if visual automation is cranky, try setting your display zoom level to recommended % or 100%
  • applemacOS - Catalina update introduces tighter app security, see solutions for PhantomJS and Java popups
  • penguinLinux - visual automation mode requires special setup on Linux, see how to install OpenCV and Tesseract

Use Cases

RPA for Python's simple and powerful API makes robotic process automation fun! You can use it to quickly automate away repetitive time-consuming tasks on websites, desktop applications, or the command line.

WEB AUTOMATION spider_web

r.init()
r.url('https://www.google.com')
r.type('//*[@name='q']', 'decentralization[enter]')
print(r.read('result-stats'))
r.snap('page', 'results.png')
r.close()

VISUAL AUTOMATION see_no_evil

r.init(visual_automation = True)
r.dclick('outlook_icon.png')
r.click('new_mail.png')
...
r.type('message_box.png', 'message')
r.click('send_button.png')
r.close()

OCR AUTOMATION nazar_amulet

r.init(visual_automation = True, chrome_browser = False)
print(r.read('pdf_window.png'))
print(r.read('image_preview.png'))
r.hover('anchor_element.png')
print(r.read(r.mouse_x(), r.mouse_y(), r.mouse_x() + 400, r.mouse_y() + 200))
r.close()

KEYBOARD AUTOMATION musical_keyboard

r.init(visual_automation = True, chrome_browser = False)
r.keyboard('[cmd][space]')
r.keyboard('safari[enter]')
r.keyboard('[cmd]t')
r.keyboard('mortal kombat[enter]')
r.wait(2.5)
r.snap('page.png', 'results.png')
r.close()

MOUSE AUTOMATION mouse

r.init(visual_automation = True)
r.type(600, 300, 'open source')
r.click(900, 300)
r.snap('page.png', 'results.png')
r.hover('button_to_drag.png')
r.mouse('down')
r.hover(r.mouse_x() + 300, r.mouse_y())
r.mouse('up')
r.close()

TELEGRAM NOTIFICATION phone

r.telegram('1234567890', 'ID can be string or number, r.init() is not required')
r.telegram(1234567890, 'Hello World. Olá Mundo. नमस्ते दुनिया. 안녕하세요 세계. 世界,你好。')
r.telegram(1234567890, 'Use backslash n for new line\nThis is line 2 of the message')
r.telegram(1234567890, 'Sent using my VPS server endpoint https://tebel.org/rpapybot')
r.telegram(1234567890, 'Sent using your own hosted endpoint', 'https://your_endpoint')

API Reference

Element Identifiers | Core Functions | Basic Functions | Pro Functions | Helper Functions


See sample Python script, the RPA Challenge solution, and RedMart groceries example. To send a Telegram app notification, simply look up @rpapybot to allow receiving messages. To automate Chrome browser invisibly, use headless mode. To run 20-30X faster, without normal UI interaction delays, see this hack.

You can even run on your phone browser using this Colab notebook (eg datascraping in headless mode). This RPA package has enterprise security by design and you can install, update and use it without the internet. You can fully control error handling if you wish to, eg snapshot of missing element or posting to custom API endpoint.

For fine-grained control on web browser file download location, use download_location(). For overriding parent folder location to install and invoke TagUI (forked version optimised for this package), use tagui_location().

ELEMENT IDENTIFIERS

An element identifier helps to tell RPA for Python exactly which element on the user interface you want to interact with. For example, //*[@id='email'] is an XPath pointing to the webpage element having the id attribute 'email'.

  • globe_with_meridians For web automation, the web element identifier can be XPath selector, CSS selector, or the following attributes - id, name, class, title, aria-label, text(), href, in decreasing order of priority. Recommend writing XPath manually or simply using attributes. There is automatic waiting for an element to appear before timeout happens, and error is returned that the element cannot be found. To change the default timeout of 10 seconds, use timeout() function. PS - if you are going to use a Chrome extension for XPaths, use SelectorsHub.

  • camera_flash An element identifier can also be a .png or .bmp image snapshot representing the UI element (can be on desktop applications, terminal window or web browser). If the image file specified does not exist, OCR will be used to search for that text on the screen to act on the UI element containing the text, eg r.click('Submit Form.png'). Transparency (0% opacity) is supported in .png images. x, y coordinates of elements on the screen can be used as well. Notes for visually automating 2 monitors, macOS Retina display issue and solution.

  • page_facing_up A further image identifier example is a png image of a window (PDF viewer, MS Word, textbox etc) with the center content of the image set as transparent. This allows using read() and snap() to perform OCR and save snapshots of application windows, containers, frames, textboxes with varying content. See this image example of a PDF frame with content removed to be transparent. For read() and snap(), x1, y1, x2, y2 coordinates pair can be used to define the region of interest on the screen to perform OCR or capture snapshot.

CORE FUNCTIONS

Function Parameters Purpose init() visual_automation = False, chrome_browser = True start TagUI, auto-setup on first run close()

close TagUI, Chrome browser, SikuliX pack()

for deploying package without internet update()

for updating package without internet debug() True or False print & log debug info to rpa_python.log

by default Chrome runs with visible mode, to run Chrome invisibly use init(headless_mode = True)

BASIC FUNCTIONS

Function Parameters Purpose url() webpage_url (no parameter to return current URL) go to web URL click() element_identifier (or x, y using visual automation) left-click on element rclick() element_identifier (or x, y using visual automation) right-click on element dclick() element_identifier (or x, y using visual automation) double-click on element hover() element_identifier (or x, y using visual automation) move mouse to element type() element_identifier (or x, y), text_to_type ('[enter]', '[clear]') enter text at element select() element_identifier (or x, y), option_value / text (or x, y) choose dropdown option read() element_identifier (page = web page) (or x1, y1, x2, y2) fetch & return element text snap() element_identifier (page = web page), filename_to_save save screenshot to file load() filename_to_load load & return file content dump() text_to_dump, filename_to_save save text to file write() text_to_write, filename_to_save append text to file ask() text_to_prompt ask & return user input

to wait for an element to appear until timeout() value, use hover(). to drag-and-drop, you can do this

PRO FUNCTIONS

Function Parameters Purpose telegram() telegram_id, text_to_send (first look up @rpapybot) send Telegram message keyboard() keys_and_modifiers (using visual automation) send keystrokes to screen mouse() 'down' or 'up' (using visual automation) send mouse event to screen wait() delay_in_seconds (default 5 seconds) explicitly wait for some time table() table number or XPath, filename_to_save save webpage table to CSV upload() element_identifier (CSS only), filename_to_upload upload file to web element download() download_url, filename_to_save(optional) download from URL to file unzip() file_to_unzip, unzip_location (optional) unzip zip file to specified location frame() main_frame id or name, sub_frame (optional) set web frame, frame() to reset popup() string_in_url (no parameter to reset to main page) set context to web popup tab run() command_to_run (use ; between commands) run OS command & return output dom() statement_to_run (JS code to run in browser) run code in DOM & return output vision() command_to_run (Python code for SikuliX) run custom SikuliX commands timeout() timeout_in_seconds (blank returns current timeout) change wait timeout (default 10s)

keyboard() modifiers and special keys -

[shift] [ctrl] [alt] [win] [cmd] [clear] [space] [enter] [backspace] [tab] [esc] [up] [down] [left] [right] [pageup] [pagedown] [delete] [home] [end] [insert] [f1] .. [f15] [printscreen] [scrolllock] [pause] [capslock] [numlock]

HELPER FUNCTIONS

Function Parameters Purpose exist() element_identifier return True or False if element exists before timeout present() element_identifier return True or False if element is present now count() element_identifier return number of web elements as integer clipboard() text_to_put or no parameter put text or return clipboard text as string get_text() source_text, left, right, count = 1 return text between left & right markers del_chars() source_text, characters return text after deleting given characters mouse_xy()

return '(x,y)' coordinates of mouse as string mouse_x()

return x coordinate of mouse as integer mouse_y()

return y coordinate of mouse as integer title()

return page title of current web page as string text()

return text content of current web page as string timer()

return time elapsed in sec between calls as float

to type a large amount of text quickly, use clipboard() and keyboard() to paste instead of type()

About & Credits

TagUI is a leading open-source RPA software robot with tens of thousands of users. It was created in 2016-2017 when I left DBS Bank as a test automation engineer, to embark on a one-year sabbatical to Eastern Europe. Most of its code base was written in Novi Sad Serbia. My wife and I also spent a couple of months in Budapest Hungary, as well as Chiang Mai Thailand for visa runs. In 2018, I joined AI Singapore to continue development of TagUI.

Over a few months in 2019, I took on a daddy role full-time, taking care of my newborn baby girl and wife cowboy_hat_facebreast_feeding. In between nannying, I used my time pockets to create this Python package built on TagUI. I hope that RPA for Python and ML frameworks would be good friends, and pip install rpa would make life easier for Python users. Since then, I maintain the package in my personal time and tens of thousands of people use it now.

At only ~1k lines of code, it would make my day to see developers of other languages port this project over to their favourite programming language. See ample comments in this single-file package, and its intuitive architecture. Work is now under way by other open-source folks to create TagUI packages for C# .NET, Java, and Go.

I would like to credit and express my appreciation below heart, and you are invited to connect on LinkedIn -

License

RPA for Python is open-source software released under Apache 2.0 license


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