These are some of useful mouse functions to control the mouse.

size()           #gave you the size of the screen
position()     #return current position of mouse
moveTo(200,0,duration=1.5)     #move the cursor  to (200,0) position  with 1.5 second delay     
moveRel()          #move the cursor relative to your current position.
click(337,46)           #it will click on the position mention there
dragRel()              #it will drag the mouse relative to position
pyautogui.displayMousePosition()     #gave you the current mouse position but should be done on terminal.

These are some of useful keyboard functions to automate the key pressing.

typewrite('')    #this will type the string on the screen where current window has focused.
typewrite(['a','b','left','left','X','Y'])
pyautogui.KEYBOARD_KEYS    #get the list of all the keyboard_keys.
pyautogui.hotkey('ctrl','o')    #for the combination of keys to enter.

These function will help you to take the screenshot and also match the image with the part of the screen.

.screenshot('c:\\path')        #get the screenshot.
.locateOnScreen('c:\\path')    #search that image on screen and get the coordinates for you.
locateCenterOnScreen('c:\\path')       #get the coordinate for the image on screen.